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

doi:10.3969/j.issn.1000-1093.2019.05.025

Abstract

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

CLC Number:

E951.3

HAN Jun， ZHU Pengcheng， ZHANG Shuai， HONG Huangjie. Multi-object Optimization Design of Hinge Point Location of a New Deployment Mechanism for Scissors-type Bridge[J]. Acta Armamentarii, 2019, 40(5): 1113-1120.

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第40卷第5期
2019 年5月兵工学报ACTA
ARMAMENTARIIVol.40No.5May2019