CAJ | 학술논문

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。
기우통계능량법，탐토VA One연건적건모방법，건립타륜적창실조성예보모형，분석료타륜각개창실적공솔류전체，학정료타륜격려위치급대소화조성원적배서。통과장방진결과여상동선형적측량결과진행대비，계산각개성원대창실조성적공헌솔，분석회의실、선원실화선장실삼개방간방진치여실험치적오차，험증료기우통계능량법건립30 m전회전타륜창실조성예보모형적가행성，위타륜적조성공제조시제공의거。
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.