204 大規模非線形系の高性能振動解析法に対する計算効率・計算精度の検討

概要

論文の詳細を見る
In the previous studies, a method to construct a rational reduction model for a large-scale nonlinear structure having locally nonlinearities was proposed. In this study, the method of harmonic balance is applied to the reduction model to introduce the efficient computational technique for obtaining the steady-state vibration. By applying the harmonic balance method, the correctional quantities at modal coordinates of the reduction model can be computed from small size matrix computation at high-speed, and the correctional quantities at physical coordinates can be computed efficiently by recursive computation process using small size matrices. The effectiveness of these computational techniques is investigated from various computational results. Additionally, deciding method of the order of Fourier series for an approximate solution is investigated from view points of accuracy of solutions.
一般社団法人日本機械学会の論文
2009-08-03