Proposal of New Perturbation Method with Complementary Term for Dynamic Characteristics Prediction of Modified Structure (2nd Report, Application to Practical Model)

DOI Web Site Web Site 6 Citations 5 References
  • YAMAZAKI Kenji
    Graduate School of Mechanical Science and Engineering, Tokyo Institute of Technology
  • HAGIWARA Ichiro
    Graduate School of Mechanical Science and Engineering, Tokyo Institute of Technology

Bibliographic Information

Other Title
  • 構造変更時の動特性予測精度向上のための補正付き摂動法の提案（第２報，実用モデルへの適用）
  • コウゾウ ヘンコウジ ノ ドウトクセイ ヨソク セイド コウジョウ ノ タメノ ホセイ ツキ セツドウホウ ノ テイアン ダイ 2ホウ ジツヨウ モデル エノ テキヨウ
  • 2nd Report, Application to Practical Model
  • 第2報, 実用モデルへの適用

Search this article

Abstract

Due to the large scale model of the finite element method in these days, a new method, which is available for the optimal analysis, is required to minimize the time for estimate of dynamic characteristics in changing the structure. In the first report, we focused on a perturbation method effective to this purpose. By finding the complementary vector appropriate to the structure change and the input using Ma-Hagiwara modal method, the accuracy is drastically improved even when the lower mode is truncated. In this report, we apply our new method to a practical model and the following 3 points become clear. First, our method is effective to the change of characteristic value of continuous element. Second, the prediction analysis for structure change becomes to be faster dramatically with high accuracy. Finally, our method contributes to the shortening of the design process in changing the design value in response to the target characteristic value.

Journal

Citations (6)*help

See more

References(5)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top