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《Ship Science and Technology》 2009-02
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Dynamics calculation of gearbox mounting based on FE-SEA hybrid method inbroadband frequency domain

LUO Fang1,YANG De-qing1,DAI Lang-tao2(1.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200030,China;2.Shanghai Prosynx Technology Co.,Ltd,Shanghai 200233,China)  
Statistical energy method(SEA)is widely used in the field of aerospace and ship dynamics environmental forecasting,applicable to large complex structure and high frequency incentive environment.However,due to the difference of dynamic response calculation of many subsystems,the method in the calculation of low-frequency noise,vibration and dynamic characteristics will have a very big error or even a SEA failure.In recent years the FE-SEA hybrid model method can be an effective solution to this problem,realize the modeling of complex large-scale structure of the broadband-frequency-range,calculation and output from low to high frequency in the unified platform,simplification of construction modeling and conversion in different modeling software.It is very applicable to the engineering.These studies explore and forecast the broadband-frequency-range dynamics of ships base with hybrid method in the VA One software.It is the first exploration at home and abroad,and works with important academic value.
【Fund】: 国家自然科学基金资助项目(10672100)
【CateGory Index】: U661.44
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