30m全回转拖轮舱室噪声预报  

Noise Forecast of 30 m Full-turning Tug Cabins

作　　者：刘甄真 温华兵[1] 陆金铭[1] 昝浩 

机构地区：[1]江苏科技大学振动噪声研究所

出　　处：《噪声与振动控制》2014年第2期114-118,共5页Noise and Vibration Control

摘　　要：基于统计能量法,探讨VA One软件的建模方法,建立拖轮的舱室噪声预报模型,分析了拖轮各个舱室的功率流传递,确定了拖轮激励位置及大小和噪声源的排序。通过将仿真结果与相同船型的测量结果进行对比,计算各个声源对舱室噪声的贡献率,分析会议室、船员室和船长室三个房间仿真值与实验值的误差,验证了基于统计能量法建立30 m全回转拖轮舱室噪声预报模型的可行性,为拖轮的噪声控制措施提供依据。Based on Statistical Energy Analysis, the modeling method using VA One code is discussed. The forecast model of cabin noise of a tug is built. The power flow transmission of the tug’s cabins is analyzed, and the locations and magnitudes of the excitation sources are confirmed. Comparing the simulation results with the experimental results of the same type tugs, the contribution rates of different noise sources to the cabins’noises are calculated. The differences between the simulation results and experimental results of the meeting room, master room and crew room are analyzed. The feasibility of the noise forecast model is verified. This work has provided a reference for tug’s noise control.

关 键 词：声学 全回转拖轮 舱室噪声预报 VAOne建模 功率流传递 声源贡献率 

分 类 号：U661.44[交通运输工程—船舶及航道工程]