Research on the Real-time Simulation System for Hydrodynamic Characteristics of Amphibious Vehicle

doi:10.12382/bgxb.2022.1237

Abstract

Abstract:

A real-time simulation system for the hydrodynamic characteristics of amphibious vehicles is designed to solve the problems of dificultly acquiring the hydrodynamic parameters and slowly predicting the motion attitude of amphibious vehicles. It can realize the driving of simulation models, motion attitude prediction, data monitoring and output. The numerical calculation method(CFD) is used to correct the vehicle dynamics coefficients, which significantly improves the accuracy of real-time simulation system. In addition, a test amphibious vehicle is developed to verify the accuracy of real-time simulation system under different working conditions. The results show that the real-time simulation system can be used to accurately and efficiently simulate the hydrodynamic characteristics of amphibious vehicles, and predict the motion attitude of the vehicle quickly and accurately. It is also applicable to various complex working conditions and has universal applicability for attitude prediction. The system has strong application value and application prospect in the development stage of amphibious vehicles, driver training, semi-physical simulation exercises and complex environment simulation.

Key words: amphibious vehicle, hydrodynamic characteristics, real-time simulation, hydrodynamic coefficient

CLC Number:

U469.6⁺93

CHEN Tairan, GENG Hao, WANG Dian, QIU Sicong, SUN Xuguang. Research on the Real-time Simulation System for Hydrodynamic Characteristics of Amphibious Vehicle[J]. Acta Armamentarii, 2024, 45(5): 1402-1415.

Figures/Tables 25

References 23

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实体	阻力系数	浮力系数	升力系数
前滑板1	0.80	1.00	1.50
前滑板2	0.80	1.00	1.50
车身1	1.00	1.00	1.00
车身2	0.00	1.00	0.50
车身3	0.00	1.00	0.50
车身4	0.20	1.00	0.50
车身5	0.00	1.00	0.50
车身6	0.00	1.00	0.50
车身7	0.20	1.00	0.50
车身8	1.00	1.00	1.00
前轮	0.60	0.90	0.75
后轮	0.60	0.90	0.75
后水翼	0.90	1.10	1.40
拉杆组1	0.00	0.00	0.00
拉杆组2	0.00	0.00	0.00
拉杆组3	0.00	0.00	0.00

实体	阻力系数	浮力系数	升力系数
前滑板1	0.80	1.00	1.50
前滑板2	0.80	1.00	1.50
车身1	1.00	1.00	1.00
车身2	0.00	1.00	0.50
车身3	0.00	1.00	0.50
车身4	0.20	1.00	0.50
车身5	0.00	1.00	0.50
车身6	0.00	1.00	0.50
车身7	0.20	1.00	0.50
车身8	1.00	1.00	1.00
前轮	0.60	0.90	0.75
后轮	0.60	0.90	0.75
后水翼	0.90	1.10	1.40
拉杆组1	0.00	0.00	0.00
拉杆组2	0.00	0.00	0.00
拉杆组3	0.00	0.00	0.00

技术内容	指标要求
车体尺寸(陆地状态)/mm	1 665×820×600
车体尺寸(水面状态)	2 800×820×600
全车整备质量/kg	250
陆上最高时速/(km·h^-1)	14
水上最高时速/(km·h^-1)	20
推进器喷口最大转角/(°)	20
轮胎驱动方式	电机独立驱动
试验车操控方式	平板远程遥控
全车防水等级	全车IP68

技术内容	指标要求
车体尺寸(陆地状态)/mm	1 665×820×600
车体尺寸(水面状态)	2 800×820×600
全车整备质量/kg	250
陆上最高时速/(km·h^-1)	14
水上最高时速/(km·h^-1)	20
推进器喷口最大转角/(°)	20
轮胎驱动方式	电机独立驱动
试验车操控方式	平板远程遥控
全车防水等级	全车IP68

参数	实时仿真模型	两栖试验车
整车尺寸(陆地状态)/mm	1 665×820×600	1 665×820×600
整车尺寸/(减阻状态)/mm	2 800×820×600	2 800×820×600
整备质量/kg	250	250
推进器额定输出推力/N	400×2	518.3×2
车轮额定输出转矩/(N·m)	6×4	6×4