The use of asymptotic modelling in vibration and stability analysis of structures |
| |
Authors: | S. Ilanko |
| |
Affiliation: | Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand |
| |
Abstract: | The use of springs with very large stiffness to model constraints in vibratory systems has been a popular approach to overcome the limitations on the choice of admissible functions in the Rayleigh-Ritz method. The maximum possible error resulting from this asymptotic modelling can be determined by using positive and negative stiffness values, or in general terms using positive and negative penalty functions. This paper illustrates how this method could be used to determine the critical loads of structures. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|