【摘要】 常见的并联机床静刚度分析理论发展尚未完善。本文在研究并联机床静力学的基础上,使用能量法分析在外载荷作用下的并联机床变形量,从而获得在不同位姿下并联机床的静刚度。利用上述方法,针对一台五自由度的并联机床进行了分析,获得了其静刚度。为并联机床静刚度研究及其设计提供了理论依据和方法支持。更多还原

【Abstract】 The static stiffness theory of a parallel kinematic machine (PKM) is still in progress. To obtain the static stiffness of a PKM, the statics of a PKM is researched first and then the energy method is introduced. Based on the outcome of the PKM’s statics, the magnitude of the PKM’s deforming is obtained using the unit payload method, so the static stiffness of a five DOF PKM is gained. The method provides the theory foundation of a PKM’s static stiffness and its design method.更多还原