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首页> 外文期刊>Mathematical Problems in Engineering >Damage Evaluation of Critical Components of Tilted Support Spring Nonlinear System under a Rectangular Pulse
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Damage Evaluation of Critical Components of Tilted Support Spring Nonlinear System under a Rectangular Pulse

机译：矩形脉冲作用下支撑弹簧非线性系统关键部件的损伤评估

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摘要

Dimensionless nonlinear dynamical equations of a tilted support spring nonlinear packaging system with critical components were obtained under a rectangular pulse. To evaluate the damage characteristics of shocks to packaged products with critical components, a concept of the damage boundary surface was presented and applied to a titled support spring system, with the dimensionless critical acceleration of the system, the dimensionless critical velocity, and the frequency parameter ratio of the system taken as the three basic parameters. Based on the numerical results, the effects of the frequency parameter ratio, the mass ratio, the dimensionless peak pulse acceleration, the angle of the system, and the damping ratio on the damage boundary surface of critical components were discussed. It was demonstrated that with the increase of the frequency parameter ratio, the decrease of the angle, and/or the increase of the mass ratio, the safety zone of critical components can be broadened, and increasing the dimensionless peak pulse acceleration or the damping ratio may lead to a decrease of the damage zone for critical components. The results may lead to a thorough understanding of the design principles for the tilted support spring nonlinear system.
机译：在矩形脉冲下获得了具有关键分量的倾斜支撑弹簧非线性包装系统的无量纲非线性动力学方程。为了评估冲击对具有关键组件的包装产品的破坏特性，提出了破坏边界面的概念，并将其应用于标题为支撑弹簧的系统，该系统具有无量纲的临界加速度，无量纲的临界速度和频率参数系统的比率作为三个基本参数。基于数值结果，讨论了频率参数比，质量比，无量纲峰值脉冲加速度，系统角度和阻尼比对关键部件损伤边界表面的影响。结果表明，随着频率参数比的增加，角度的减小和/或质量比的增加，可以扩大关键部件的安全区域，并增加无量纲的峰值脉冲加速度或阻尼比。可能会导致关键部件损坏区域的减小。结果可能会导致对倾斜支撑弹簧非线性系统的设计原理有透彻的了解。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第4期|910143.1-910143.9|共9页
  • 作者

    Duan Ningning; Hao Meng; Chen Anjun;

  • 作者单位

    Jiangnan Univ, Sch Mech Engn, Wuxi 214122, Jiangsu, Peoples R China.;

    Jiangnan Univ, Sch Mech Engn, Wuxi 214122, Jiangsu, Peoples R China.;

    China Natl Control & Test Ctr Packaging Qual, Wuxi 214122, Jiangsu, Peoples R China.;

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