Using reduced-basis method (RBM), design parameters are needed to be separated from the linear elastic operators (stiffness matrix, mass matrix, and loads), which is time-consuming. So, an improved reduced-basis method -inversion reduced-basis method (INVRBM) is introduced to calculate the lower order natural frequencies and mode shapes of structure. In this method, the computing process of design parameters separated from the linear elastic operators is simplified. At the same time, results from INVRBM are accurate, and the error estimation is done. In this paper, a truck frame is taken as an...
