Table of Content

30 April 2015, Volume 36 Issue 4

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Paper

Test and Analysis of Silicon Stack Failure in Electrothermal-chemical Launch

LI Zhen-xiao， ZHANG Ya-zhou， GAO Liang， JIN Yong， LI Bao-ming

2015, 36(4):  577-581.  doi:10.3969/j.issn.1000-1093.2015.04.001

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The silicon stack damage is observed in electrothermal-chemical launch experiment. The details of the possible reasons are analyzed. And the reasons are determined through mechanical vibration impact test, simulation and tests of pulse power supply discharge, and reverse recovery characteristics measurements of silicon stack. Results show that the mechanical vibration shock cannot lead to the silicon stack damage in electrothermal-chemical launch. The silicon stack damage is mainly caused by the cooperation of the reverse recovery characteristics of series components, the inductance characteristic of load and the asynchronous discharge of pulse power supply. The large inductance of the transmission lines is the direct cause for the damage of the silicon stacks in the system.

Research on Disturbance Moment Spectrum of Tank Gun System under High Maneuvering Conditions

LI Chang-bing, YUAN Dong, MA Xiao-jun, YAN Zhi-feng

2015, 36(4):  582-589.  doi:10.3969/j.issn.1000-1093.2015.04.002

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The amplitude and frequency of disturbance moment putting on gun are quickly increased with the increase in the maneuvering speed of tank and the complexity of road. As a result, the stabilized accuracy and hitting probability are seriously affected. For the problem above, a dynamics model of tank gun system is built, and then the action principle, affecting factors and test method of the disturbance moment are analyzed. On the basis of that, the Hilbert-Huang transform (HHT)-based time-frequency spectrum analysis method of disturbance moment is proposed, the typical spectrum characteristics (including main vibration frequency band, constraint frequency band and characteristic amplitude) and their influence on design of tank gun control system are analyzed thoroughly. Finally, a disturbance moment spectrum test system is designed and applied in engineering practices, establishing both the theoretical evidence and technical support for disturbance moment spectrum analysis and design of tank gun control system under high maneuvering conditions.

Research on Digital Detector for Detecting the Flaws of Anti-aircraft Artillery Barrel

ZHANG Zhen-you, YANG Qi-zi, YU Zheng-qing, ZHANG Tian-wen

2015, 36(4):  590-594.  doi:10.3969/j.issn.1000-1093.2015.04.003

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The flaws of barrel of anti-aircraft artillery may influence the accuracy of launching and safety of use during launching. A device of detecting the flaws of artillery barrel is designed using optical-electron-mechanical control technology and CCD imaging technology based on the structure of bore. This device is used to investigate the surface appearance of inner bore through 360 ° panoramic imaging, thereby examining the surface of inner bore qualitatively and quantitatively. It has the functions to position the flaws, compare the types of flaws and measure the sizes of flaws on barrel automatically. The system can be driven to move along the barrel axis, thereby effectively identifying the flaws on bore and making a comprehensive assessment.

Fuzzy Logic-based Interacting Multiple Model Algorithm of Networked Munitions for Target Tracking

SUN Bao-liang， JIANG Chun-lan， LI Ming， CHENG Xin-yi

2015, 36(4):  595-601.  doi:10.3969/j.issn.1000-1093.2015.04.004

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Fuzzy logic-based interacting multiple model (FL-IMM) algorithm in target tracking is proposed for networked munitions. During the interacting stage, the difference value between the theoretical value of covariance matrix and its estimated value is used to adaptively adjust the measured error of the system. In order to fuse multi-nodes data, a FFS (fuzzy-fusion system) is proposed to obtain the target state estimation.The feasibility of the proposed algorithm is verified through a network with 3 detecting nodes. The results show that the algorithm can effectively trace the maneuvering target under the condition of sensor failure and unknown system measurement error, which means that FL-IMM algorithm has great practicability in tracking the targets by the ground networked munition multi-nodes.

Analysis of Dynamic Characteristics of Fixed-wing Dual-spin Projectiles

XU Nuo, YU Jian-qiao, WANG Ya-fei, WANG Lin-lin

2015, 36(4):  602-609.  doi:10.3969/j.issn.1000-1093.2015.04.005

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Fixed-wing dual-spin projectile is a class of trajectory correction projectile, of which the forward course correction fuze (CCF) and aft body can rotate at different spin rates during flight. According to its aerodynamic asymmetry characteristics, the dynamic model of fixed-wing dual-spin projectiles is derived. Nonhomogeneous angular motion equations are calculated by simplifying the model. The angular motion characteristics and stability of fixed-wing dual-spin projectiles are studied based on the angular motion equations. The results show that, when the roll rate of the CCF is constant, the angular motion characteristics of projectile are greatly affected by both the roll rate and rolling direction, and an unreasonable roll rate may cause the instability of angular motion because of the resonance; when the spin angle of the CCF stays at any angular position, the projectile has the course correction ability which is proportional to the installation angle of the canard wings. Ultimately the stability criterion of fixed-wing dual-spin projectiles is studied.

Study of Drive Characterization of Fuze Vibration Piezoelectric Generator Based on Airflow-induced Sound

ZOU Hua-jie, CHEN He-juan, LIANG Yi, JIANG Qi, LIU Bin, WANG Jun-hong

2015, 36(4):  610-618.  doi:10.3969/j.issn.1000-1093.2015.04.006

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In order to satisfy the drive performance of fuze piezoelectric generator and solve the key problem of excitation energy, an annular nozzle-resonator structure is proposed. CFD method is applied to simulate aerodynamically driven acoustic vibration induced by jet in the resonator. And also, the experiment testing response voltage of piezoelectric transducer is compared with the simulating sound pressure at the bottom of resonator. The results show that the curves of sound pressure and axial velocity varying with time are both similar to sine wave, and their phase difference is approximate 90°, which indicates that a standing wave acoustic field is established inside the resonator. Amplitude and frequency of the simulating sound pressure at the bottom of resonator are much stable and have large amplitude. The frequency of the response voltage is close to that of the simulating sound pressure, which verifies that the jet generator source can produce very stable pure tone. Therefore, the designed jet generator sound source, according to the principle of air flow induced vibration, has non moving components, which is beneficial to improve excitation energy of fuze piezoelectric generator.

Research on the Characteristics of Secondary Combustion of Boron-based Ducted Rocket with Swirling Air Injection

WANG Hong-yuan, XU Yi-hua, HU Xu， ZENG Zhuo-xiong

2015, 36(4):  619-625.  doi:10.3969/j.issn.1000-1093.2015.04.007

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Three-dimensional two-phase flow in the typical double downside 90°afterburning chamber of boron-based ducted rocket is numerically simulated by means of realizable k-ε turbulence model and one-step eddy-dissipation combustion mode1, and the ignition and combustion mode of boron particles of KING in the high-speed flow with consideration of the aerodynamic stripping effect is programmed by the UDF function of Fluent software. The results show that, when the co-swirl and counter-swirl air in the double side of inlet enters into the secondary chamber，the mixture of air and fuel finishes more fully and the combustion efficiency increases with the increase in swirl number. For particle combustion efficiency and total efficiency, the co-swirl is higher than the counter-swirl when the swirl number is less than 0.179. On the contrary, the counter-swirl is higher than the co-swirl when the swirl number is greater than 0.385, the co-swirl effect is the same as the counter-swirl effect when the swirl number is about 0.2; the ignition time of boron particles is reduced by swirling air injection, its minimum can be attained when swirl number is 0.385.

Design of Integrated High Voltage Planar Switch of Exploding Foil Initiators

ZHOU Mi, TONG Hong-hai, REN Xi, WANG Yin, MENG Qing-ying, LI Ming, MIN Jie

2015, 36(4):  626-630.  doi:10.3969/j.issn.1000-1093.2015.04.008

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In order to decrease the volume and manufacturing cost of exploding foil initiator system, an exploding foil initiator (EFI) with high voltage planar switch is designed. The exploding foil and high voltage planar switch are prepared on the observational side and the reverse side of ceramic substrate, respectively. That substrate and other parts are assembled into an exploding foil initiator, and the electrical explosion performance of the exploding foil initiator is studied. The results indicates that the exploding foil initiator with high voltage planar switch had similar initiating performance as the traditional exploding foil initiator which uses a spark gap switch. The high voltage planar switch could meet the initiating requirement of exploding foil initiator instead of spark gap switch.

Numerical Research on the Effect of Incident Shock Strength on Focusing of Shock Wave in a Parabolic Cavity

CHEN Xin, ZHANG Qiang, HE Li-ming, WANG Yu-qian, RONG Kang

2015, 36(4):  631-636.  doi:10.3969/j.issn.1000-1093.2015.04.009

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In order to obtain the influence of incident shock strength on the focusing of shock wave in a parabolic cavity, the adaptive refined mesh and wave propagation method are used to simulate the reflection and focusing of planar shock wave in a 2D parabolic cavity with incident shock Mach numbers of 1.1, 1.3, 1.5, 2.0, 3.0 and 4.0. Numerical results indicate that the reflection of incident shock from the cavity wall is direct Mach reflection, invert Mach reflection and transition regular reflection in order. High energy zone is resulted from the collision of triple points as well as Mach stems. The shock wave reflecting from the cavity wall before and after focusing only reflects from symmetry plane after focusing and finally does not reflect as the incident shock strength increases. The distance and interval between triple points reflecting from wall and symmetry plans decrease with the increase in the Mach number of incident shock wave.

Research on the Effect of Pneumatic Eccentric Angle on Scanning Motion of Asymmetric-fin Terminal Sensitive Ammunition

SHU Jing-rong, CHANG Si-jiang, YANG Hai-bo, ZHANG Ting

2015, 36(4):  637-643.  doi:10.3969/j.issn.1000-1093.2015.04.010

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A coordinate system for mechanics analysis is established based on the structural features of the asymmetric-fin terminal sensitive ammunition. The force and moment models are analyzed with consideration of pneumatic eccentric angle and large angle of attack asymmetries, and the 6D differential equation set of motion is deduced. The simulation calculation is performed according to the structure of a certain asymmetric terminal sensitive projectile. The calculated result shows that the pneumatic eccentric angle which is in the same plane as the wingspan direction can induce stable spiral scanning motion, and the scanning angle must be in the same plane as the pneumatic eccentric angle. The result also shows that the scanning rolling speed decreases but the scanning angle increases linearly as the pneumatic eccentric angle increases.

Research on a Program Angle Optimization Method for Supersonic Rocket Target

SHEN Guan-jun, FENG Shun-shan, CAO Hong-song

2015, 36(4):  644-652.  doi:10.3969/j.issn.1000-1093.2015.04.011

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An optimization method of pitch program angle is proposed for the optimization problems of level flight trajectory of supersonic rocket target. Considering the initiation and impact point of rocket target and the level flight state constraints, the pitch program angle optimization model is built on the longitudinal flight plane of rocket target. The Process constraints are transformed to the pitch program angle constraints, and the optimal control problems are translated to the nonlinear programming problems based on Gauss pseudo spectral method. And then the nonlinear programming problems are solved by sequential quadratic programming method. Simulation results show that this proposed method can quickly obtain the optimal program pitch angle, and has good robustness.

Research on the Step Size of Real-time Self-adaptation Trajectory Simulation in Distributed Hardware-in-loop Environment

ZUO Jia-liang, YANG Ren-nong, ZHANG Ying, WANG Xue-feng

2015, 36(4):  653-659.  doi:10.3969/j.issn.1000-1093.2015.04.012

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The creditability of missile trajectory simulation model is not taken into a count based on the distributed environment of hardware-in-loop. From the view of engineering and practice, a strategy of self-adaptation of the simulation step size is designed and implemented in the real-time trajectory simulation. At the same time, two methods of missile trajectory simulation are presented according to the features of the distributed environment of hardware-in-loop: the simulation based on the environment of attacker and the simulation based on the environment of target aircraft. After analyzing the simulation results obtained from the two methods, the missile trajectory simulation based on the environment of target aircraft outperforms the one based on the environment of attacker. Undoubtedly, it has improved the creditability of real-time trajectory simulation in the hardware-in-loop environment to a great extent.

Design of Adaptive Fuzzy Dynamic Surface Sliding-mode Guidance Law Considering Autopilot Lag

SHANG Wei， TANG Sheng-jing， GUO Jie， MA Yue-yue， ZHANG Yao

2015, 36(4):  660-667.  doi:10.3969/j.issn.1000-1093.2015.04.013

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Based on adaptive fuzzy approach strategies and dynamic surface sliding mode control techniques, a novel interception guidance law is proposed for the problem that a missile attacks a high maneuvering target. Relative motion equations of missile and target are established accounting for autopilot lag. Based on the annihilating idea of the missile-target LOS(line-of-sight) angular velocity, a dynamic surface sliding mode guidance law is designed with adaptive reaching law. Meanwhile, the adaptive fuzzy method based on integrated the LOS angular velocity and missile-target distance is adopted to approach variable-structure term. The simulation results show that this law can remove chattering phenomenon. Moreover, this law has higher guidance precision to high maneuvering.

An Approach to Attitude Angle Adjustment of Solid Missiles under the Condition of Depleted Shutdown Based on BP NeuralNetwork

XIAN Yong, LI Shao-peng, LI Bang-jie

2015, 36(4):  668-673.  doi:10.3969/j.issn.1000-1093.2015.04.014

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To solve the fuel remaining issue of solid engine, an attitude angle adjustment scheme for energy management is established by using the BP neural network approximation algorithm, which is applicable to the condition of depleted shutdown. According to reentry angle, engine thrust deviation and range, the scheme computes attitude adjustment angle under interference when the second stage rocket engine ignites for 10 s, which ensures the accuracy of the energy consumption and provides a precondition for close-loop guidance. The validity and feasibility of the model are demonstrated by simulation.

Sliding Mode Control for Hydraulic Erecting System of Large Launcher

XIE Zheng， XIE Jian， DU Wen-zheng， LI Liang， GUO Yang

2015, 36(4):  674-680.  doi:10.3969/j.issn.1000-1093.2015.04.015

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An adaptive multiple surface sliding mode control method is proposed for the control problem of hydraulic erecting system of large launcher, which is a typical high order irregular system. On the basis of hydraulic erecting system nonlinear model, the multiple surface sliding mode controller is proposed by using the recursive technique. According to Lyapunov stability theory, the adaptive laws are introduced for the controller to estimate the parametric uncertainties and external disturbances in real time , which improves the robustness of the erecting system. The experimental results demonstrate that the proposed method could effectively restrain the parametric uncertainties and external disturbances，the tracking accuracy in the erecting process is improved. In addition, the control performance of proposed control method is better than that of conventional sliding mode.

Vibration Performance of Hydraulic Erecting Cylinder in Collision at Full Stroke

SUN Chuan-bin, MA Da-wei, ZHU Zhong-ling

2015, 36(4):  681-686.  doi:10.3969/j.issn.1000-1093.2015.04.016

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The “free movement-contact deformation” model is adopted to research the dynamics of hydraulic erecting cylinder at full stroke, and the dynamic equations are built. The vibration performance of full stroke cylinder with and without collision-gaps is studied. Numerical results show that the vibration of piston-rod is more complicated in cylinder due to the collision between piston-rods and cylinders. The piecewise linear characteristics are displayed on hydraulic cylinder system under low frequency harmonic load, and the nonlinear characteristics are displayed under slightly high frequency harmonic load. The gap between the piston-rod and the cylinder increases the stroke of the piston-rod, significantly decreases the displacement and acceleration amplitude of the piston-rod in low-range, decreases the high-frequency resonance peak of acceleration of the piston-rod, and decreases the frequency and amplitude of the impact force between the piston-rod and cylinder. The results provide theoretical basis and methods of analysis for structural design and control design of erecting system.

Background Suppression of Small Infrared Target Image Based on Nonsubsampled Complex Contourlet Transform and GaussianWavelet Support Vector Regression

WU Yi-quan， SONG Yu

2015, 36(4):  687-695.  doi:10.3969/j.issn.1000-1093.2015.04.017

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For the background suppression problem of dim target infrared image that contains background interference and noise, a new background suppression method based on nonsubsampled complex contourlet transform (NSCCT) and Gaussian wavelet support vector regression (SVR) is presented. With this method, the nonsubsampled complex contourlet transform is performed for the infrared target image, and then the correlation properties of NSCCT coefficients are used to de-noise the image so that the majority of background clutter is suppressed. Gaussian wavelet support vector regression is used to process the denoised infrared image to obtain the predicted image. The predicted image subtracted from the denoised image gives the residual image and the background is suppressed. A large number of experiments are done on infrared images including small targets, and the comparison is made with the background suppression methods of infrared target image based on least squares support vector regression, support vector regression and least squares. The experimental results show that the suggested method can get better de-noising result, and the performance of background suppression is superior.

Research on UWBDBF Using Direct Time Delay Compensation Based on Up-sampling Technology and High-order HermiteInterpolation Filter Sets

DU Qiang, SONG Yao-liang, JI Chen-he, CAO Dong

2015, 36(4):  696-702.  doi:10.3969/j.issn.1000-1093.2015.04.018

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Direct time delay (DTD) compensation is an effective method for beamforming of ultra-wideband (UWB) signal. The digital beam-forming (DBF) performance is directly related to the frequency response of the DTD filter. Based on the analysis of problems existing in Lagrange interpolation filter, a novel method utilizing interpolation filter sets with fixed coefficients is presented to implement DBF. High-order Hermite interpolation filter sets with simple structure combing multi-channel up-sampling technology are applied to DTD and the DBF of UWB signals is achieved by multi-channel delay compensation. Theoretical analysis and simulation results show that the proposed method is featured by a more accurate recovery of UWB signals when sampling rate is less than the Nyquist rate. It has a better real-time and an obviously superior DBF performance compared to the traditional methods such as Lagrange.

Underdetermined Blind Source Separation Based on Time-frequency Method Using Cyclostationary Characteristic

ZHANG Liang-jun, YANG Jie, LU Kai-wang, SUN Ya-dong

2015, 36(4):  703-709.  doi:10.3969/j.issn.1000-1093.2015.04.019

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Quadratic time-frequency distribution (TFD) is an effective method to solve the underdetermined blind source separation problems. In the proposed method, the cyclic spectrum density (CSD) is calculated using the piecewise average periodogram method, which is used to reconstruct the Wigner-Ville distribution (WVD). The auto-term TF points are detected after computing the matrixes of TFDs, and a new three-order tensor is folded by the chosen TFD matrixes. At last, PARAFAC decomposition is applied to separate the sources directly, which does not assume that the number of active sources at any TF point is not larger than the sensor number. Simulation results demonstrate that the proposed method can suppress the noise effectively and separate the sources directly with only one step, avoiding the superposition of error of “two-step” methods, which improves the performance and efficiency of separation.

A Method of Determining EMCCD Electron Multiplication Gain

LU Jia-li， LI Bin-hua， HU Po

2015, 36(4):  710-715.  doi:10.3969/j.issn.1000-1093.2015.04.020

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The electron multiplication gain needs to be corrected during operation of the EMCCD camera. According to the structural characteristics of the electron multiplying CCD and the charge multiplication of the single stage multiplier, the limitation of the existing multiplication model has to be analyzed in practical application. For TI EMCCD devices, the key parameters , including the operation voltage and temperature of EMCCD, of original multiplication model can be derived by simulation, a mathematical equation of the parameters is also presented by multiple regression analysis. And then the equation is introduced into the model, and a new method for determining the EMCCD gain is obtained, which is universal and simpler. It expands the application range of the original multiplication model. The simulation results of the model agree well with the actual data of EMCCD device. It shows that, the gain model is convenient for calculating the electron multiplier average gain as the charge multiplication gate voltage is changed.

Characteristics of High Strength Underwater Explosion Equivalent Shock Loading

REN Peng, ZHANG Wei, LIU Jian-hua, HUANG Wei

2015, 36(4):  716-722.  doi:10.3969/j.issn.1000-1093.2015.04.021

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The structure of water chamber is modified for high strength underwater shock loading in laboratory on the basis of the non-explosive underwater shock wave loading device. The loading characteristics of the non-explosive high strength underwater equivalent shock wave are studied using the combined experimental and numerical methods. The dependences of shock wave strength and decay constant on the flyer plate and piston mass are investigated, and the expression of shock wave strength is established. The underwater shock loading experiments for 0.5 mm thick aluminium alloy target plate are carried out by using the modified device. The experimental results indicate that the improved device could effectively simulate high strength underwater shock loading.

AUV's Depth Control Based on Reconstructive Fault-tolerant Control

WAN Lei， ZHANG Ying-hao， SUN Yu-shan， LI Yue-ming， HE Bin

2015, 36(4):  723-730.  doi:10.3969/j.issn.1000-1093.2015.04.022

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A depth fault-tolerant control strategy is proposedto make sure an autonomous underwater vehicle (AUV) can finish the expected tasks successfully when its one or more motion executers are in fault. The control strategy is based on reconstructable fault-tolerant control theory, and the active disturbance rejection control (ADRC) is used to achieve the design and implementation of controllers. The strategy includes two control methods, in which one is used when the motion executers work in normal and the other is used when one or more motion executers are in fault. These two methods can change from one to another according to the fault diagnosis of the executers. In simulation experiment, the control strategy is tested in different environmental disturbances and compared with the strategy with PID. The results show that the depth fault-tolerant control strategy based on reconstructable fault-tolerant control theory and ADRC is not only effective but also has stronger disturbance resistance.

Mission Planning of Passive Networked Sensors for Cooperative Anti-stealth Detection Based on POMDP

WAN Kai-fang, GAO Xiao-guang, LI Bo, MEI Jun-feng

2015, 36(4):  731-743.  doi:10.3969/j.issn.1000-1093.2015.04.023

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A cooperative strategy for multiple passive networked sensors to satisfy the requirements of anti-stealth is proposed. A POMDP model for the multiple passive networked sensors is established to improve the effectiveness of the anti-stealth detection. The elements of POMDP model are analyzed comprehensively based on the POMDP theory. A cooperative control system of multi-passive-sensors is put forward, and a UKF method for belief state updating together with a MCRS-based (Monte-Carlo Rollout sampling) algorithm for Q-value estimation is presented. A basic policy of CCSP is designed. Experiments show that the proposed model can be used for the efficient management and scheduling of multi-passive-sensors, as well as the effective detection and tracking of the stealth targets by deploying these sensors. The validity of the proposed algorithm is demonstrated.

Damping Characteristics Analysis of Viscoelatic Thin Damping Layer Structure Based on Deformation Energy Method

SUN Bao, SUN Da-gang, SONG Yong, LI Zhan-long, WANG Jun

2015, 36(4):  744-751.  doi:10.3969/j.issn.1000-1093.2015.04.024

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In order to study the damping characteristics of constrained damping structure with multiple elastic layers, a calculation method of a constrained damping structure loss factor is set up based on the principle of deformation energy. And the coupling relation among structure loss factor, material loss factor, shear parameter of damping structure and stiffness parameter is got. The proposed method is introduced into the optimization analysis of the interlayer thickness, structure and related material damping parameter. The finite element modal strain energy method is used to compare two practical examples. The comparative result shows that the calculated results of the theoretical method is in agreement with the experimental results obtained by finite element method.

Research Notes

Finite Element Model Updating Method of Airdrop Airbag

LI Jian-yang， WANG Hong-yan， RUI Qiang, HONG Huang-jie, ZHANG Fang

2015, 36(4):  752-757.  doi:10.3969/j.issn.1000-1093.2015.04.025

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The finite element model of airdrop airbag should be updated to improve it simulation accuracy. Finite element model of payload-airbag is established. The sensitivity of the model parameters to the cushion characteristics of airbag is analyzed, and the coefficient of friction between airbag and ground and the flow coefficient of airbag are selected as the parameters to be modified. The response surface models of impact response vs. friction and flow coefficients are established. Based on the response surface models, the optimal solution is solved by genetic algorithm. The result indicates that the finite element model updating of airdrop airbag is efficient through the comparison of the simulated results before and after updating and the test results.

High Precision Measurement of Cartridge Volume

GUO Hao, FENG Jin-liang, ZHANG Yao-yu, CAI Cun-liang， LI Si-qi

2015, 36(4):  758-762.  doi:10.3969/j.issn.1000-1093.2015.04.026

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A phenomenon that liquid level is low at the edge and high in the middle appears to cause the measuring errors due to the surface tension of the injected liquid when the cartridge volume is measured by water injection weighing method. A high precision measuring system based on the water injection weighing method is proposed. In the proposed system, the array electrodes are used to measure liquid level to overcome the effect of the liquid surface tension. The sensor signal is picked up by a specially made electrode, and then it is transmitted to a computer through a wireless module to control the flow until the cartridge is filled with the water, so as to achieve the purpose of accurate measurement. The accuracy of the system is analyzed. The analysis result shows that the accuracy of the system is up to 0.01%, which meets the requirement of precision index.

Research on Tracking Technology of the Fire Control Dynamic Performance Test System

JIANG Hui-lin ， WANG Chun-yan， ZHAO Yi-wu ， WANG Xiao-man, LOU Yan

2015, 36(4):  763-768.  doi:10.3969/j.issn.1000-1093.2015.04.027

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Fire control system is the core of modern weapons. The main functions of the system are target searching, singting, tracking, and rangefinding ranging. It provides automatically ballistic correction ballistic correction, multi-solver firing data, setting angle and fire control. Accurate test and dynamic calibration are very important for the dynamic performance of fire control system. The new ideas which use the opto-electronic method to test the fire control dynamic performance, and the principles and methods of optical dynamic tracking and pointing are discussed.