論文名稱:

定壓式氣體彈簧空氣流道設計之研究

Design for Constant Pressure Gas Spring of the Air Flow Channel

研究生:

陳君岳 CHEN,CHUN-YUEH

指導教授:

劉政湖 LIU,CHENG-HU

學位類別:

碩士

學校名稱:

建國科技大學

系所名稱:

機械工程系暨製造科技研究所

學號:

99017015

畢業學年度:

100

語文別:

中文

出版年:

民101

關鍵字:

定壓式氣體彈簧 Constant Pressure Gas Spring

壓縮空氣 Compressed Air

溝槽 Flow Channel

流道 Clearance

間隙 Flowmeter

流量計 Commercial Package

商業套裝軟體

摘要:

本研究即在探討關於定壓式氣體彈簧空氣流道基礎研究問題，特別著重於提高機械性能及節省壓縮空氣能源探討，包含活塞溝槽數量及位置、活塞溝槽寬高比、氣缸與活塞之間隙、活塞長短和氣缸大小等因素所引發不同流場氣流的影響，並且探討負荷影響及衝擊負荷對定壓式氣體彈簧所導致之震動效應等影響。不同流道會產生不一樣的結果，尋找適當流道形式可以提供維持固定推力，而僅需少量的壓縮空氣，所以壓縮空氣流道為定壓力式氣體彈簧核心技術。本研究利用壓力感測計及資料擷取器量測氣缸壓力與時間變化關係，並利用流量計測量壓縮空氣需求流量。經研究發現活塞與氣缸壁間隙0.015mm，活塞長度為90mm，溝槽寬度3mm、深度5mm、間距4.5mm為60mm內徑氣缸定壓式氣體彈簧適當之參數設計，並配合商業套裝軟體FLUNET模擬壓縮空氣流經多重凹槽之流場行為，探究定壓式氣體彈簧空氣流道流場行為。

This investigation conduct the basic design about constant pressure gas spring compressed air channel problem. The important term will focus on the performance for the machinery and for the compressed air consumption. In the meantime, the load and impact load is studied for the vibration of the constant pressure gas spring. The results are not the same owing to different design about flow channels. Suitable air flow channel design may sustain same force only a little compressed air. This investigation will use pressure sensor and data acquisition to measure the transient pressure for air chamber of the cylinder and use flowmeter to measure the consumption for the compressed air. The final results for the investigation is 0.015mm clearance between cylinder and piston, the length of the piston is 80mm, the width of flow channel is 3mm, the depth of the channel is 5mm and distance between channels is 4.5mm. These are suitable design for 60mm cylinder diameter for constant pressure gas spring. Commercial package FLUENT is cooperated to simulate compressed air in the multi-stage cavity flow, study the compressed air flow behavior in the constant pressure gas spring.