工具機螺栓接合面之模型驗證

Model Verification of Typical Bolt-Jointed Structure of Machine Tools

王栢村(Bor-Tsuen Wang) ； 謝宗廷(Tsung-Ting Hsieh) ； 陳正陽(Cheng-Yang Chen) ； 周芳俊(Fang-Chun Chou)

《中華民國振動與噪音工程學會論文集》 2011 (2011/06) Pp. 190-196

https://doi.org/10.30028/CSSVANNUAL.201106.0190

摘要

本文利用有限元素分析與實驗模態分析進行模型驗證，針對工具機螺栓接合部分進行驗證，主要在探討滑件透過螺栓與基座接合之模型，並介紹使用有限元素分析與實驗模態分析之模型驗證的概念與程序。首先將基座與滑件透過有限元素分析軟體進行模態分析，再進行實驗模態分析，藉由有限元素分析與實驗模態分析獲得模態參數與頻率響應函數，將結果進行比對，確定有限元素模型能等效於實際結構，最後透過模型驗證的手法，針對螺栓接合接觸模型進行校正，以確定擬定模型的正確性。本文主要在說明，組合件一步一步的模型驗證手法，特別是在螺栓接合之有限元素模型的驗證，此外此手法亦可應用於其它相同的結構。

關鍵字

工具機 ； 螺栓接合 ； 接觸元素 ； 模型驗證

並列摘要

This work applies finite element analysis (FEA) and experimental modal analysis (EMA) techniques to perform model verification of a typical bolt-jointed structure of machine tools. The assembly structure consisting of the base part and the bolt-jointed slider component is considered. The concept and procedure for model verification by the integration of FEA and EMA are introduced. First, the base part and the slider component are performed modal analysis by FEA and experiments, respectively. Modal parameters and frequency response functions (FRFs) can be obtained from FEA and EMA, respectively. Results show the comparison is good I, e,. the analytical FE model is equivalent to the real structure. The assembly structure with bolt-joints are finally formulated and calibrated for its contact model through model verification. This work presents the step-by-step model verification procedures for an assembly structure, in particular for the validation of FE modeling of a typical bolt-jointed structure. The analysis technique can then be adopted for other similar structures as well.

並列關鍵字

machine tools ； bolt-jointed ； contact element ； model verification