Dynamic analysis of an elastic shaft with consideration about Journal bearing

압축기의 Bearing 윤활을 고려한 탄성체 Shaft의 동적 거동 해석

A shaft of a reciprocating compressor receives bending force by piston, which makes movement of the shaft. The movement of the shaft affects durability and becomes a source of noise. In this paper, a cylinder is modeled by considering motion of a suction and discharge valve. The journal bearing is modeled by Bernoulli's equation. The trajectory of shaft which is considered cylinder and journal bearing can be calculated by finite element method. It will help a design of shaft to increase durability and reduce noise.