FEM 시뮬레이션을 이용한 임펠러의 구조 안전성 평가

• 영문명: The Evaluation of Structural Safety of Impeller Using FEM Simulation
• 발행기관: 한국산업경영시스템학회
• 저자명: 정종윤(Jong Yun Jung)
• 간행물 정보: 『산업경영시스템학회지』제43권 제4호, 41~47쪽, 전체 7쪽
• 주제분류: 공학 > 산업공학
• 파일형태: PDF
• 발행일자: 2020.12.30

영문 초록

As modern industries are highly being developed, it is required that mechanical parts have to be manufactured with a high precision. In order to have precise parts, error-free designs have to be done before manufacturing with accuracy. For this intention being fulfilled, a mechanical analysis is essential for design proof. Nowadays, FEM simulation is a popular tool for verifying a machine design. In this paper, an impeller, being utilized in a compressor or an oil mixer as an actuator, is studied for an evaluation. The purpose of this study is to present a safety of an impeller for a proof of its mechanical stability. A static analysis for stress, strain, and deformation within a regular usage is examined. This simulation test shows 357.26×106 Pa for maximum equivalent stress and 0.207mm for total deformation. A fatigue test is carried to provide durability and its result shows that minimum safety factor is 3.2889, which guarantees that it runs without a fatigue failure in 106 cycles. The natural frequencies for the impeller is ranged from 228.09Hz to 1,253.6Hz for the 1st to the 6th mode. Total deformations at these natural frequencies are shown from 6.84mm to 12.631mm. Furthermore, Campbell diagram reveals that a critical speed is not found throughout regular rotational speeds. From the test results for the analysis, this paper concludes that the suggested impeller is proved for its mechanical safety and good to utilize at industries.

목차

1. 서 론

2. 임펠러 형상 및 모델링

3. 임펠러 구조해석

4. 임펠러 구조해석 Simulation

5. 결과 분석 및 결론

References

키워드

Impeller Structural Safety Structural Analysis FEM Campbell Diagram