Aiming at the effect of static stiffness on the performance of PMT(parallel machine tool),the 3-TPT parallel machine tool developed by NEU is taken as the target to investigate.

• 为了研究机床静刚度对并联机床性能的影响,以东北大学研制的3-TPT并联机床为研究对象,通过对机床静刚度模型的理论分析,得出了机床静刚度的表达式。