刚度解耦式三级隔离器设计与抗冲击特性分析

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (15) : 36-42.

论文

高鹏1,2，杜志鹏1,2，强浩垚3，张磊2，闫明1

作者信息 +

Design of stiffness decoupling three-stage impact isolator and its anti-impact characteristics analysis

GAO Peng1,2, DU Zhipeng1,2, QIANG Haoyao3, ZHANG Lei2, YAN Ming1

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文章历史 +

摘要

为提高舰载设备的抗冲击能力，提出了一种新型刚度解耦式的三级抗冲击隔离器理论模型，相比于并联结构，该隔离器的三级结构可改善不同隔冲层间刚度的耦合程度，提高了刚度的可调性，且在一定的刚度配置范围内垂向隔冲效果更好。首先，建立了垂向隔离系统的数学模型，通过理论和仿真对比验证了点线仿真法的准确性。随后，通过Abaqus、Matlab、Python的联合仿真，展开多工况的冲击模拟，并最终获得了三级隔离器最优刚度配置范围。结果表明，在配置范围内，三级式结构的垂向隔冲性能好于并联结构，且基于结构的刚度解耦特点，再次调节水平向刚度后，可使其达到最优化配置。所提出的刚度解耦式隔离器解决了并联结构刚度耦合程度高、优化难度大的问题，为抗冲击隔离器的优化设计提供了新的思路。
关键词：刚度解耦；三级隔离器；联合仿真；缓冲系数

Abstract

In order to improve the shock isolation ability of shipboard equipment, a new three-stage anti shock isolator model with stiffness decoupling is proposed. Compared with parallel structure, this isolator can improve the coupling degree of stiffness between different shock isolation levels, thus improving the adjustability of stiffness, and the vertical impact isolation effect is more significant within a certain range of stiffness configuration. Firstly, the mathematical model of the isolation system is established. On the basis of verifying the accuracy of the point line simulation method, the optimal damping ratio of the isolator is obtained and used as the damping parameter of the three-stage isolator. Then, through the co simulation of abaqus, matlab and python, the simulation of multiple conditions is carried out to obtain the optimal stiffness configuration range of the three-stage isolator.The results show that the vertical shock isolation performance of the three-stage structure is better than parallel structure within the configuration range, and based on the stiffness decoupling characteristics of the structure, the optimal configuration can be achieved by adjusting the horizontal stiffness again. The isolator solves the problems of high coupling degree of stiffness and difficult optimization of parallel structure, and provides a new idea for the optimal design of anti shock isolator.
Keywords: stiffness decoupling; three-stage isolator; co-simulation; buffer coefficient

导出引用

高鹏1,2，杜志鹏1,2，强浩垚3，张磊2，闫明1. 刚度解耦式三级隔离器设计与抗冲击特性分析[J]. 振动与冲击, 2022, 41(15): 36-42

GAO Peng1,2, DU Zhipeng1,2, QIANG Haoyao3, ZHANG Lei2, YAN Ming1. Design of stiffness decoupling three-stage impact isolator and its anti-impact characteristics analysis[J]. Journal of Vibration and Shock, 2022, 41(15): 36-42

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