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유상모(Ryu, Sang-Mo),정의봉(Jeong, Weui-Bong),한형석(Han, Hyung-Suk) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.8
This paper deals with the process to identify the transient exciting force generated from a rotary compressor. The compressor was assumed to be a rigid body. The equation of motion of a rigid compressor supported by three mounts was derived with 6 degree-of-freedom. The exciting forces at the center of mass of the compressor were estimated from the acceleration data measured at compressor shell. Compressor-pipe system was modeled numerically. The accelerations of compressor and pipe were predicted numerically by using the estimated exciting force. A new shape of pipe model was proposed to reduce the vibration. In the prediction by the method in this paper, the maximum acceleration of the pipe could be reduced by 53.7 % at the steady-state and by 12 % at the transient process. In the real experiments, the maximum acceleration of the pipe was reduced by 54.2 % at steady-state and 14.7 % at the transient process. It was verified that the numerical results showed good agreement with experimental results.
이한울(Lee, Han-Wool),유상모(Ryu, Sang-Mo),정의봉(Jeong, Weui-Bong),한형석(Han, Hyung-Suk),안재우(Ahn, Jae-Woo),정상우(Jeong, Sang-Woo) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.10
This paper deals with the process to identify the exciting forces generated from a rotary compressor. The equation of motion of a rigid compressor supported by several mounts was derived with 6 degree of freedom. The mass moment of inertia of compressor and the stiffness of rubber mounts were also identified by experiments. The exciting force at the center of mass of the compressor were estimated from the acceleration data measured at compressor shell. The piping system connected to the compressor was modeled. The acceleration of a pipe was predicted numerically by using the predicted exciting force. The numerical results showed good agreement with experimental results, which validated the identified exciting force.