噪声与振动控制Issue(3)：167-171,5.DOI:10.3969/j.issn.1006-1335.2013.04.038
救护直升机机载急救单元减振优化设计
Optimal Design of Vibration Reduction for the Integrated Airborne Aid Unit on Ambulance Helicopter
摘要
Abstract
According to the vibration characteristics of an ambulance helicopter, the optimum design for vibration isolation of integrated airborne aid unit was done using the tunable metal dry-friction damping. Within the adjustment range of the isolator’s dry friction damping, curves of the friction force of the vibration isolator were obtained by testing, and the harmonic-wave superposition method was used to simulate the cabin-floor excitation of the helicopter. Meanwhile, the optimum curve of the friction force was made based on the optimization simulation, and then the best working condition of the isolator damping was determined. Results of the optimization show that the RMS of the acceleration can be reduced by 78.755 % with the use of the isolator in the airborne aid unit, the isolator has a good vibration isolation damping performance and is suitable for the airborne vibration environment of the helicopter.关键词
振动与波/救护直升机/机载综合急救单元/干摩擦阻尼/仿真优化Key words
vibration and wave/ambulance helicopter/integrated airborne aid unit/dry friction damping/simulation and optimization分类
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..救护直升机机载急救单元减振优化设计[J].噪声与振动控制,2013,(3):167-171,5.
