柔顺停歇机构伪刚体模型的运动学和动力学分析

独亚平,赵春花,郭嘉辉,周川,张立强

Kinematic and dynamic analysis of pseudo-rigid body model of compliant dwell mechanism

Ya-ping DU,Chun-hua ZHAO,Jia-hui GUO,Chuan ZHOU,Li-qiang ZHANG

表2 选用不同柔性梁材料时机构的固有频率

Table 2 Natural frequency of mechanism with different flexible beam materials

柔性梁材料	E/GPa	ρ/（g/cm³）	$\sqrt[]{\frac{E}{ρ}} / 10^{3} {(\frac{N \cdot m}{k g})}^{\frac{1}{2}}$	ω/Hz
聚丙烯	1.38	0.90	1.238 28	5.378 5
聚乳酸	3.50	1.25	1.673 32	8.563 9
铍青铜	126	8.30	3.896 24	23.594 2
钛合金	114	4.40	5.090 10	38.729 3
铝合金	71.7	2.71	5.143 69	48.789 1
弹簧钢	207	7.68	5.191 64	57.624 0