Vibration analysis of propeller diameter trimming based on parametric modeling
After different operating conditions,the propeller often has overload or fracture,which makes the ship en-gine propeller unable to be in the best matching state.In order to solve this problem,the diameter trimming technology is of-ten used to transform the propeller geometry to make the ship engine propeller match normally again.The existing research does not consider the influence of diameter trimming on the vibration characteristics of propeller.Using the finite element method,integrating matlab programming technology and Ansys secondary development technology,this paper carries out the research on the influence of diameter trimming on the vibration characteristics of the propeller with or without side in-clination,reveals the influence mechanism of key parameters on the vibration law of the propeller before and after cutting,and provides theoretical guidance for finding the optimal trimming scheme with vibration characteristics under ship machine propeller matching.
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