摘要
根据杠杆原理设计的新型二级杠杆放大器,在此基础上基于3-PRC并联机构提出一种具有空间解耦的新型三维移动并联柔性微位移放大机构.该机构由三个相同的支链采用正交的方式与动、静平台相连,以压电陶瓷作为驱动装置并内置在二级杠杆放大器中,能够使机构实现微纳米级的运动.通过理论计算和仿真分析对新型二级杠杆放大器和并联柔性微位移放大机构进行了研究,结果表明该机构具有良好的运动解耦性和较高的精度.
According to the lever principle to design a new type of secondary lever amplifier,we put forward a novel 3-DOF compliant parallel micro/nano displacement amplification mechanism with three-dimensional decoupling based on the 3-PRC parallel mechanism. The three same branched chains of the mechanism connected to the dynamic platform and static platform by orthogonal way,using piezoelectric actuator as the driving device can make mechanism realize within the scope of micro/nano level movement,PZT actuator is built in secondary leveraged amplifier. The new type of secondary lever amplifier and compliant parallel micro/nano displacement amplification mechanism are studied by theoretical calculation and simulation,the results show that the mechanism has a good motion decoupling characteristics and high precision.
出处
《天津理工大学学报》
2018年第1期25-30,36,共7页
Journal of Tianjin University of Technology
基金
国家自然科学基金(51575544)
天津市自然科学基金(16JCZDJC38000)
关键词
微纳米位移放大机构
新型二级杠杆放大器
放大倍数
解耦性
有限元仿真
micro/nano displacement amplification mechanism
new secondary lever amplifier
magnification
decoupling characteristics
finite element simulation
