邱煒程 | Khoo Wee Chern

ANSYS熱傳結構分析的節流閥(教育版)Throttle valve for ANSYS heat transfer structure analysis (educational version)

By 邱煒程 | Khoo Wee Chern, March 04, 2019

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ANSYS熱傳結構分析的節流閥(教育版)
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工研院開的ANSYS分析課程,模擬分析節流閥。 結構鋼材質的節流閥與1W的發熱件鎖在一起,外部與20℃的空氣接觸,其他面為絕熱面。節流閥內部能承受最高的流體溫度是多少?外部的最低溫度是多少?最大變形量多少?模態的自然頻率各多少? Sol:設定1W的熱通量Heat Flow在節流閥鎖面,經過最佳化分析後,內部能承受最高的流體溫度是39.71℃,外部的最低溫度為39.15℃。最大變形量0.13mm,發生在最薄的底部,但安全係數仍在1以內,屬於安全範圍。 另外,設定6組模態分析結果(598.85Hz、702.86Hz、924.08Hz、1140.2Hz、1307.3Hz、1371.4Hz),藉由節流閥的自然頻率觀察不同流速和溫度作用下的變化,發現第1、3、4、5組模態容易發生同位置的應力集中,可作為在減重或補強的結構設計參考來避開外力作用下的共振發生。 節流閥連結:https://drive.google.com/drive/folders/1dx4F6DXRdRcQskkXCyaOgE1opEFzigoO?usp=sharing ANSYS原廠和工研院證書:https://drive.google.com/file/d/1Bhm6TDrP1CtHGWDYfUvSOJDntbce49sj/view?usp=sharing https://drive.google.com/file/d/1cIQWwadVuwXqAkBsVutUxWb-DXFFBfqD/view?usp=sharing
The ANSYS analysis course opened by ITRI to simulate and analyze the throttle valve. The structural steel throttle valve is locked with a 1W heat-generating component, the outside is in contact with 20°C air, and the other surfaces are insulated. What is the highest fluid temperature inside the throttle? What is the minimum external temperature? What is the maximum amount of deformation? What is the natural frequency of the modality? Sol: Set 1W heat flux Heat Flow in the throttle lock surface, after optimization analysis, the internal maximum temperature can withstand 39.71 ° C, the external minimum temperature is 39.15 ° C. The maximum deformation is 0.13mm, which occurs at the thinnest bottom, but the safety factor is still within 1 and is a safe range. In addition, six sets of modal analysis results (598.85 Hz, 702.86 Hz, 924.08 Hz, 1140.2 Hz, 1307.3 Hz, 1371.4 Hz) were set, and the change in the flow rate of the throttle valve was observed by the natural frequency of the throttle valve. The 3, 4, and 5 groups of modalities are prone to stress concentration at the same location, which can be used as a reference for structural design of weight reduction or reinforcement to avoid resonance under external force. Throttle link: https://drive.google.com/drive/folders/1dx4F6DXRdRcQskkXCyaOgE1opEFzigoO?usp=sharing ANSYS original and ITRI certificate: https://drive.google.com/file/d/1Bhm6TDrP1CtHGWDYfUvSOJDntbce49sj/view?usp=sharing https://drive.google.com/file/d/1cIQWwadVuwXqAkBsVutUxWb-DXFFBfqD/view?usp=sharing

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