The expression for the relation between the deform and the external force of progressive rate springs with variable arm length was established by using unit load method,and then the non-linear dynamic equations was given.After solving the equations by means of multiple scales method,the modulation equations and its approximate solution were obtained.The curves of load and load point,frequency and the frequency response curves were given by illustrative examples.
陈自力,唐小弟,彭丽华.变撑臂渐硬性钢板弹簧非线性分析[J].动力学与控制学报,2004,2(1):87~91; Chen Zili, Tang Xiaodi, Peng Lihua. The non-linear dynamics analysis of progressive rate spring with variable arm length[J]. Journal of Dynamics and Control,2004,2(1):87-91.
