基于有限元方法的某船振动响应计算分析

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摘    要：采用有限元计算方法，建立某船的三维有限元模型，对全船振动水平进行评估分析。分析的重点是人员居住区及日常工作区，目的是校核在航行工况时主要振源激励下的振动响应。计算结果满足要求，计算分析方法可为相关类型船舶振动性能评定提供参考。

关键词：有限元计算；振源激励；振动响应

中图分类号：U662.2                                  文献标识码：A

Calculation and Analysis of Vibration Response of a

Ship Based on Finite Element Method

LI Jianming1， HUANG Jianjun2， ZOU Haibin1 ， HUANG Tianxing1

（ 1. Guangzhou Marine Engineering Corporation， Guangzhou 510250;  2. CSSC Huangpu Wenchong Shipbuilding Co.，Ltd.， Guangzhou 510715 ）

Abstract： A three-dimensional finite element model of this ship has been established by finite element method to evaluate and analyze the vibration level of the whole ship. The focus of vibration analysis is on the residential area and daily work area. The purpose is to check the vibration response of this ship under the excitation of the main vibration source when sailing out of port （sailing condition），and the calculation results meet with the legal requirements. The calculation and analysis method could provide certain reference and guiding significance for the evaluation of related type ships on vibration performance.

Key words： Finite Element Calculation; Vibration Source Excitation; Vibration Response.

1     前言

振动噪声对船舶的舒适性产生不利影响，若振动程度过大，还会对船舶造成较大的危害，主要包括构件应力过大产生的疲劳破坏，并会使船上的设备仪器失灵[1]。（剩余4216字）