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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (5): 1113-1120.doi: 10.3969/j.issn.1000-1093.2019.05.025

• Paper • Previous Articles    

Multi-object Optimization Design of Hinge Point Location of a New Deployment Mechanism for Scissors-type Bridge

HAN Jun1, ZHU Pengcheng1, ZHANG Shuai2, HONG Huangjie1   

  1. (1.The Fifth Research Institute, Army Academy of PLA , Wuxi 214035,Jiangsu,China;2.College of Field Engineering,the Army Engineering University of PLA,Nanjing 210007,Jiangsu,China)
  • Received:2018-06-22 Revised:2018-06-22 Online:2019-07-26

Abstract: A new deployment mechanism of scissors-type mobile bridge is presented. For the intermittent hydraulic oil overflow in driving cylinder cavity of engineering prototype due to overload during initial deploying, an optimal method for improving the stress state of driving cylinder is proposed. The kinematics and statics models of deployment mechanism are established using Denavit-Hatenberg homogeneous transformation matrix. A multi-objective optimization model for designing the location of hinge point in deployment mechanism is constructed based on different characteristics of driving force and locking force of hydraulic cylinder. The key hinge point location of deployment mechanism was optimized for the engineering prototype, and the correctness of calculation model was proved by using ADAMS. The research result shows that the maximum pulling force of optimized hydraulic cylinder is reduced by 59.5 percent, and the force distribution of hydraulic cylinder is significantly improved; the proposed calculation model is correct, and the optimization method has quick convergence speed and steady performance. Key

Key words: scissors-typebridge, deploymentmechanism, hingepointlocation, D-Hhomogeneoustransformationmatrix, multi-objectoptimizationdesign

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