考虑本身质量的圆柱螺旋弹簧动态特性研究

摘要

从频域与时域两个角度，对考虑本身质量的一端固定、一端受迫振动的圆柱螺旋弹簧在理想稳定状态下及在实际非稳定状态下的振动情况进行理论分析，得到频域下的频率方程及时域下的各圈位移方程。建立可模拟弹簧动态性能的弹簧离散模型并进行仿真分析，对比仿真与理论分析结果，验证所推导的理论公式的正确性。%The dynamics of a fixed-free end helical spring are analyzed both at the frequency-domain and the time-domain. Analyti-cal expressions for coils’ displacements are obtained under two different spring state conditions:the ideal stable state and the realis-tic state. As a discrete spring model represents wel springs’ dynamic behaviors in multi-body dynamics simulation, this model’ s simulation results are used to examine the correctness of the analytical expressions.