本研究探討利用壓電材料作成之流體驅動裝置以幫助電子產品散熱的可能性。首先利用電腦輔助工程分析軟體分析雙壓電金屬片的結構動態特性，分別利用模態分析以及簡諧分析的方法，以暸解各種設計參數對雙壓電金屬片的自然頻率及振型的影響，並藉性能參數（performance merit）的定義作為雙壓電金屬片對流體驅動能力的一種指標。其次利用計算流體力學軟體分析受雙壓電金屬片驅動的流場之速度及溫度分布，並進而求出壓電片導致的對流作用，對電子產品散熱的增強作用，包括壓電片的振幅及振型對熱傳性能的影響。

This study investigates the possibility of employing the piezoelectric material to build a flow driving device in order to enhance the cooling performance of electronic devices. Computer – Aided engineering (CAE) software was employed to study the structure dynamic characteristics of piezoelectric bimorphs. Both modal analysis and harmonic analysis are performed to investigate the influence of various design parameters on the natural frequency and vibration mode of the piezoelectric bimorphs. A performance merit parameter is defined as a guide to characterize the flow driving ability of the bimorph structure. Computational fluid dynamic (CFD) software is the employed to obtain the velocity and temperature distributions of the flow field drive by the piezoelectric bimorph. The effect of the vibration amplitude and vibration modes and the cooling performance are both investigated.

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