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首次对非线性多自由度包装结构缓冲设计进行了灵敏度分析。根据摄动法得到渐近解，通过脉冲响应矩阵将动力响应及其关于设计变量的灵敏度表示成积分形式，该方法适用于质量阵、阻尼阵和刚度阵非对称及非比例阻尼的条件。利用响应灵敏度表达缓冲性能指标极值关于设计变量的灵敏度。通过其灵敏度分析进行改进能有效地提高缓冲性能。
For the first time, the sensitivity analysis of the nonlinear multi-degree of freedom package structure buffer design was carried out. The asymptotic solution is obtained according to the perturbation method. The impulsive response matrix is used to represent the dynamic response and the sensitivity of the design variables to the integral form. The method is suitable for the asymmetric and non-proportional damping of mass matrix, damping matrix and stiffness matrix. Using Response Sensitivity to Express Buffer Performance Extremum Sensitivity to Design Variables. Improvement through its sensitivity analysis can effectively improve the cushioning performance.