圓盤鑽石鋸片之結構最佳化設計

本文主要使用兩階段最佳化設計程序，對圓盤鑽石鋸片進行結構最佳化外形設計。在第一階段中，建構鑽石鋸片之有限元素參數化模型，對鋸片進行模態實驗和有限元素分析，最後並更新鋸片之有限元素模型。在第二階段中，以階段一所獲得的更新參數，對鋸片做徑向切槽的外形最佳化設計，並計算有限元素分析自然頻率和鋸片實際運轉頻率之差值，將此差值最大化，進而使鋸片結構共振的可能性降低。本文提出兩個設計範例，結果顯示此兩階段最佳化設計程序之成效。

關鍵字

最佳化設計；有限元素模型更新；圓盤鑽石鋸片；模態實驗

並列摘要

This paper proposes a two-phased procedure for the optimum design of circular diamond saw blades. In Phase one, an accurate finite element (FE) model representing an actual saw blade is acquired by incorporating experimental and finite element analysis (FEA) frequencies to update the blade FE model. In Phase two, shape optimization of the radial slots on the blade, based on the updated geometrical parameters obtained in Phase one, is performed to maximize the frequency separation between the FEA results and the saw's operational speed, in an attempt to reduce the possibility of structural resonance. The effectiveness of the proposed two-phased system is demonstrated by the successful implementation of several numerical examples.

並列關鍵字

optimum design ； finite element model updating ； saw blades ； modal testing

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圓盤鑽石鋸片之結構最佳化設計

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