Dynamics theory and the "mass-spring-dashpot" system model were used to develop an equilibrium equation. The mass matrix, elasticity matrix and damping matrix were given.

从机械系统动力学理论出发，参照振动系统的“质量弹簧阻尼”模型，分析推导了系统动力学平衡方程，得到了质量矩阵、弹性矩阵及阻尼矩阵的具体表达式。

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The nonlinear spring-mass-dashpot system was used as the research object. The relation between system health monitoring data and health index was given through simulation.

以非线性弹簧-阻尼-质量块系统为研究对象，通过仿真计算，给出了系统健康监测数据与系统健康指数的对应关系。

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