@article{(Open Science Index):https://publications.waset.org/pdf/420, title = {Stiffness Modeling of 3-PRS Mechanism}, author = {Xiaohui Han and Yuhan Wang and Jing Shi}, country = {}, institution = {}, abstract = {This paper proposed a stiffness analysis method for a 3-PRS mechanism for welding thick aluminum plate using FSW technology. In the molding process, elastic deformation of lead-screws and links are taken into account. This method is based on the virtual work principle. Through a survey of the commonly used stiffness performance indices, the minimum and maximum eigenvalues of the stiffness matrix are used to evaluate the stiffness of the 3-PRS mechanism. Furthermore, A FEA model has been constructed to verify the method. Finally, we redefined the workspace using the stiffness analysis method.}, journal = {International Journal of Mechanical and Mechatronics Engineering}, volume = {6}, number = {12}, year = {2012}, pages = {2739 - 2745}, ee = {https://publications.waset.org/pdf/420}, url = {https://publications.waset.org/vol/72}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 72, 2012}, }