本究係針對微型渦輪引擎轉子組於研發過程中，需建置轉子組(壓縮器及渦輪轉子)完整的平衡工作，以避免引擎試車時，發生振動過大之現象。本研究目標在以渦輪引擎單件壓縮器轉子、渦輪轉子及轉子組合件分別建置可允許的殘餘不平衡量(Permissible Residual Unbalance, Up)參數與實體驗證，在建置參數過程中依據ISO1940剛性轉子平衡品質等級需求(Balance Quality Requirements of Rigid Rotors)；包括工件屬性區別如航空引擎轉子、船舶引擎轉子、汽車引擎凸輪…平衡品質等級皆不相同及建置轉子平衡物理模型，偶合力距a、b、c及轉子平衡修正半徑r1，r2參數值。另建構平衡量測方法與步驟，選用同級引擎轉子做為實驗平衡量測因子的比較分析，在實驗中平衡量測所使用的儀器，為德國Schenck公司生產航空工業等級的HM1BU平衡機，可感測轉子不平衡量的角度、與重量大小，以建置完成轉子的平衡參數的驗證工作，進而確保轉子裝機試車時，確保引擎在起動、慢車、巡航、大車操作行程中，獲得正常運轉。在後續的引擎試驗中，證明本研究所執行過的轉子組件，均能順利過轉至全轉速，也驗證本文對不平衡量之量測及修正已符合規範之要求。

The purpose of this research is to develop a method to perform the dynamic balancing of micro-turbine-engine rotors, including the impeller and the turbine rotor, to prevent the vibration problems occurring in the engine test process. In the design and development of a micro turbine engine, it is required to establish a group of performance parameters and to verify the dynamic balance model. The balance quality requirement is referred to ISO1940 standard, in which series of quality grade and classifications of rigid rotor are defined, such as the aviation engine rotor, the marine engine rotor, the automotive engine cam rotor, etc. The permissible residual unbalance (UP) is estimated based on the physical model and the selected quality grade of the micro turbine engine rotor. The dynamic-balance parameters, including a, b, c, r1 and r2, should be measured physically for the individual rotor as well as the whole rotor assembly. The measurements are carried out with the aviation-grade balancing instrument, HM1BU, made by Schenck Co. The instrument measures the unbalance amount in terms of the weight and the angular position about the rotor. The measurement results of a real rotor are used to verify the maximum permissible residual unbalance and the analysis of performance parameters proposed in the present study to ensure steady rotation from start-up to the maximum speed in the engine test. From the engine test data, it is also verified that the unbalanced measurement and correction are satisfactory for the balance process according to the ISO standard.

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