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사이클로이드 치형 감속기의 가공 및 조립 오차가 각도전달오차에 미치는 영향에 관한 연구
홍일화(Ilhwa Hong),김경록(Kyungrok Kim),김영환(Younghwan Kim),임흥순(Heungsoon Lim),정성현(SungHyun Jung) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.4
In this paper, parameters that have dominant effects on angular transmission error(A.T.E.) of reducer with cycloid tooth profile are identified, and reduction of the A.T.E. is experimentally confirmed by manufacturing error modification. For impact assessment of the A.T.E. on main components, series of the manufacturing errors are suggested and the A.T.E. is estimated in order to find dependent elements from equivalent analysis model. From the analytical result, we could make out that the A.T.E. is mainly caused by the manufacturing errors of hole and tooth profile in cycloid gear. It is also found that the A.T.E. is influenced by the assembly errors of hold flange and output shaft in carrier. It is experimentally verified that these influence factors have considerable effect on the A.T.E.
2단 감속 구조를 가진 인휠 감속기의 소음 저감에 관한 연구
홍일화(Ilhwa Hong),박소희(Sohee Park) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
In this study. the noise sources were identified and the noise were reduced for an In-wheel reduction system. To identify the noise sources, noise signals were measured by a microphone on a driver seat and these signals were analyzed with a waterfall plot. For this purpose, the gear mesh frequencies from the gear box of a reducer were not only investigated but noise sources of an electric motor were also examined. Furthermore, the gear transmission error using the analytical model were obtained to confirm the noise sources occurred by the wheel load during a vehicle motion. It was found that severe noise was generated in the gear system unstability by the wheel load applied to the gear box. In particular, the gear transmission error was dominant the lateral load occurred by a vehicle cornering. The severe noise could be reduced by a gear mesh stiffness modification.
〈학술논문〉 가공 오차를 고려한 사이클로이드 치형 감속기의 각도 전달 오차에 대한 연구
김경록(Kyungrok Kim),홍일화(Ilhwa Hong),김영환(Younghwan Kim),임흥순(Heungsoon Lim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
In this study, the angular transmission error(A.T.E.) for the reducer using cycloid gear was analyzed by consideration of the manufacturing error of main components. It was constructed that the analytic model of the A.T.E was based on equivalent spring system from the Hidaka's research. The manufacturing errors of the components were defined for the analysis. To obtain the defined variables, a measuring method of the manufacturing errors was presented and a geometrical method was defined to transform the measured data into input data. The ATE. of the reducer was estimated from the obtained variables using the method. In order to verify the analytic result, the A.T.E. was measured by an experimental method. As a result of comparison of both data, it was found that analytical and experimental results were similar in the error range of 10%.