Abstract：The finite element model of a new type of polar exploration cruise was established, the global wet modal was analyzed based on the virtual mass theory, and the modal frequency calculated was compared with the main frequency of the exciting force to verify the stagger between them.The vibration velocity exciting force admittance matrix was calculated by the frequency response analysis and the vibration velocity on the stern plate and main engine foundations was tested during the trial trip.Then, the exciting forces of propeller and main engine were derived by using the vibration velocity and admittance matrix.Loading the exciting forces on the finite element model, the cabin vibration velocity was caculated by carrying out the frequency response analysis, and the result was compared with the tested value, showing the tolerence is within the allowable scope in engeering.Loading the main enging and propeller exciting forces on the finite model respectively, the contribution ratio of the two exciting forces to the cabin vibration velocity was analyzed respectively.The results provide a reference for the vibration assessment in early stage and control in late stage.
刘甄真1，江国和1，葛珅玮2，徐天南2，刘嘉麟1，吴刚1. 100 m新型极地探险邮轮振动特性研究[J]. 振动与冲击, 2021, 40(6): 212-219.
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