발전기세트 공진 회피를 위한 베이스프레임 최적설계에 관한 연구

다국어 초록 (Multilingual Abstract)

A structural modification of baseframe is an effective method to avoid resonance in marine diesel generator (D/G) set which consists of diesel engine, generator and baseframe. However the reinforcement with thick plates or additional parts to increase the natural frequency can be less effective because of increased weight. Especially fine control of target mode based on the experience is difficult because the weight and interference of system have to be considered
In this paper, the design optimization of baseframe was performed to reduce the resonant vibration using a gradient descent method. The design parameters such as thickness, shape and location of baseframe parts are optimized to increase the torsional natural frequency of D/G set. From the actual test, the new designed baseframe reduced the vibration level in resonance by 55% without any increase of weight and interference.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 베이스프레임 최적 설계
• 3. 비틀림 모드 제어용 베이스프레임 최적설계
• 4. 검증 시험
• 5. 결론
• 참고문헌