中南大学学报（自然科学版）2017，Vol.48Issue(4)：925-935,11.DOI:10.11817/j.issn.1672-7207.2017.04.011
2-PRC-PR(C)并联机构减振平台及其动力学特性
2-PRC-PR(C) parallel mechanism platform for vibration isolation and its dynamics
摘要
Abstract
In order to meet the requirement to reduce the multi-dimensional vibration and shock from equipment and machines, a vibration isolation platform was proposed based on a 2-PRC-PR(C) parallel mechanism. This mechanism came from a 3-PRC parallel mechanism by replacing one of the cylindrical pairs at the moving platform with a combined pair. Thanked to the combined pair, the proposed platform could be switched between 3-PRC parallel mechanism with 3 degrees of freedom and 2-PRC-PR^C parallel mechanism with 4 degrees of freedom. 3 or 4 dimensional vibration isolation could be realized when spring damping were put on the active motion pairs. The kinematics and dynamics of the system were studied, and then the influence principle and contribution of the platform's parameters on its natural frequency were analyzed by orthogonal experiment method. The results show that the relevant parameters effects on the natural frequency of the system are different from the single degree of freedom vibration reduction device.关键词
并联机构/减振平台/固有频率/正交试验法Key words
parallel mechanism/vibration isolation platform/natural frequency/orthogonal experiment method分类
机械制造引用本文复制引用
刘乃军,牛军川..2-PRC-PR(C)并联机构减振平台及其动力学特性[J].中南大学学报（自然科学版）,2017,48(4):925-935,11.基金项目
国家自然科学基金资助项目(51275275,51675306) （51275275,51675306）
山东省优秀中青年科学家科研奖励基金资助项目(BS2010ZZ006) (Projects(51275275, 51675306) supported by the National Natural Science Foundation of China （BS2010ZZ006）
Project(BS2010ZZ006) supported by Research Award Fund for Outstanding Young Scientists of Shandong Province) （BS2010ZZ006）
