基于有限元方法的某船振動(dòng)響應(yīng)計(jì)算分析

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摘    要：采用有限元計(jì)算方法，建立某船的三維有限元模型，對(duì)全船振動(dòng)水平進(jìn)行評(píng)估分析。分析的重點(diǎn)是人員居住區(qū)及日常工作區(qū)，目的是校核在航行工況時(shí)主要振源激勵(lì)下的振動(dòng)響應(yīng)。計(jì)算結(jié)果滿足要求，計(jì)算分析方法可為相關(guān)類型船舶振動(dòng)性能評(píng)定提供參考。

關(guān)鍵詞：有限元計(jì)算；振源激勵(lì)；振動(dòng)響應(yīng)

中圖分類號(hào)：U662.2                                  文獻(xiàn)標(biāo)識(shí)碼：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

振動(dòng)噪聲對(duì)船舶的舒適性產(chǎn)生不利影響，若振動(dòng)程度過大，還會(huì)對(duì)船舶造成較大的危害，主要包括構(gòu)件應(yīng)力過大產(chǎn)生的疲勞破壞，并會(huì)使船上的設(shè)備儀器失靈[1]。（剩余4216字）