一种冗余输入地震模拟器的静刚度分析

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英文篇名：Static stiffness analysis of a kind of earthquake simulator with redundant inputs 中文刊名：机械设计 英文刊名：Journal of Machine Design 作者：张彦斐 ; 宫金良 ; 高峰 英文作者：ZHANG Yan-fei~1 ; GONG Jin-liang~2 ; GAO Feng~3(1.Institute of Robotics ; Beijing University of Aeronautics and Astronautics ; Beijin 100083 ; China ; 2.School of Mechanical Engineering ; Yanshan University ; Qinhuangdao 066004 ; China ; 3.State Key Laboratory of Vibration ; Shock and Noise ; School of Mechanical and Power Engineering ; Shanghai Jiaotong University ; Shanghai 200030 ; China) 中文关键词：冗余输入 ; 地震模拟器 ; 静刚度 英文关键词：redundant input ; earthquake simulator ; static stiffness 出版日期：2006-03-20 机构：北京航空航天大学机器人研究所,燕山大学机械工程学院,上海交通大学机械与动力工程学院 北京100083,河北秦皇岛066004,上海200030 年：2006 期：03 出版单位：机械设计

摘要

提出一种8-PSS型冗余输入并联机构为主体的地震模拟器,此地震模拟器采用8个伺服电机输入,能实现6维运动。在考虑各丝杠系统和支链系统的弹性变形下,建立了地震模拟器的静刚度模型,给出了数值算例,结论表明采用冗余输入支链能够有效地提高地震模拟器的刚度。
A kind of earthquake simulator that takes the 8-PSS typed parallel mechanism with redundant inputs as the principle part has been put forward.Eight servo motors were adopted for the input of this earthquake simulator,and six dimensional movements can be realized.Under the consideration of elastic deformations of each leading screw system and branch chain system,the static stiffness model of earthquake simulator was established,the example of numerical computation was presented.The result shows that the adoption of branch chain with redundant inputs could effectively enhance the stiffness of earthquake simulator.

引文

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