具可變齒高及齒厚之渦卷式壓縮機轉子幾何參數化設計

學號：M10032023 論文題目：具可變齒高及齒厚之渦卷式壓縮機轉子幾何參數化設計總頁數：85頁學校名稱：國立屏東科技大學系 (所) 別：機械工程系畢業年月：2014年7月學位別：碩士研究生：詹詠順指導教授：吳育仁博士論文摘要內容：渦卷式壓縮機是目前最優秀的小型壓縮機之一，渦卷式壓縮機具有效率高、震動噪音小、可靠性高及壽命高等優點，渦卷式壓縮機內部主要的核心為兩相互嚙合運轉之動、靜渦卷轉子，而主要影響渦卷式壓縮機性能的正是動、靜渦卷轉子，因此動、靜渦卷轉子的線形設計優劣將會直接影響渦卷式壓縮機性能，本文建立具可變齒高及齒厚渦卷轉子設計方法，主要是利用可變基圓漸開線作為設計基礎以達到齒厚變化，提出具可變齒高渦卷轉子線形設計方法，根據座標轉換及齒輪包絡原理推導具可變齒高相互嚙合之線形，並根據多段圓弧修正方法對具齒高及齒厚渦卷轉子進行齒頭修正。本文進行具可變齒高及齒厚渦卷轉子線形參數趨勢化分析，發現具可變齒厚渦卷轉子線形參數對包覆體積、底盤直徑及壓縮比的影響及具可變齒高渦卷轉子線形參數對壓縮比的影響，之後利用基於均勻實驗建立具可變齒厚渦卷轉子RBF代理模型正確反應出參數與目標函數之間的關係。在相同條件下具可變齒高及齒厚渦卷轉子與傳統渦卷轉子進行比較，壓縮比上升42.55%，包覆體積下降15.69%、底盤直徑下降8.18%，證實具可變齒高及齒厚渦卷轉子在效率及體積上都略勝傳統渦卷轉子。關鍵詞：渦卷式壓縮機、均勻實驗、渦卷線形、可變基圓漸開線

關鍵字

渦卷式壓縮機；均勻實驗；渦卷線形；可變基圓漸開線

並列摘要

Student No.: M10132029 Title: Parameterized Design of Rotor Geometry with Variable Tooth Height and Thickness for Scroll Compressors Total Pages: 85 Name of University: National Pingtung University of Science and Technology Institute: Department of Mechanical Engineering Graduation Date: July, 2014 Degree: Master Student: Chan,Yung-Shun Advisor: Dr. Wu Yu-Ren Abstract: Scroll type compressor is one of the most excellent compact compressors, with the advantages of high efficiency, lower vibration noise, high reliability and long service life. The core part inside the compressor is the dynamic and statistic scroll rotors meshing each other for operation; while the major part affecting the performance of scroll type compressor lies in the rotors, thus the geometric design of the two rotors can directly affect the performance of compressors. This paper builds a design method for scroll rotors of variable tooth depth and thickness, which mainly utilizes variable base circle involutes as design foundation to make the tooth thickness adjustable. It proposes a geometric design for scroll rotor of variable tooth depth, which induces the geometry of rotors of variable tooth depth meshing each other based on coordinate transformation and gear enveloping principles, and utilizes multi-stage arc correction to modify the tooth head of scroll rotor of variable tooth depth and thickness. In the study, the trend of geometric parameters of scroll rotor of variable tooth depth and thickness is analyzed, finding the influences of geometric parameters of rotor of variable tooth thickness on the final wall thickness, chassis radius and compression ratio as well as that of variable depth on compression ratio. Later, it establishes RBF agent model of scroll rotor of variable tooth thickness based on uniform experiment to correctly reflect the relationship between parameter and target function. Under the same condition, it compares the scroll rotors of variable tooth depth and thickness with traditional ones, finding that the compression ratio can be improved by 42.55% but the final wall thickness reduced by 15.69% and chassis radius by 8.18%, which testifies that the proposed scroll rotor performs better than traditional ones in terms of efficiency and volumes. Key words: scroll type compressor, uniform experiment, scroll geometry, variable base circle involutes

並列關鍵字

scroll type compressor ； uniform experiment ； scroll geometry ； variable base circle involutes

參考文獻

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具可變齒高及齒厚之渦卷式壓縮機轉子幾何參數化設計

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