摘要
建立了用于地铁车辆中高频噪声分析的整车统计能量分析(SEA)预测模型,分析了对地铁车辆内部噪声具有较大贡献的噪声源种类,通过对SEA模型施加噪声源激励载荷进行仿真,计算出地铁车辆内部各部位的噪声声压级,找出地铁车辆噪声的薄弱环节进而进行改进。
A full vehicle SEA prediction model is built for metro vehicle high frequency noise analysis, and noise source sorts with much contribution for vehicle interior noise are analyzed. Due to load noise source stimulation load for SEA modeling, sound pressure level of everywhere in metro vehicle interior is calculated. So we could find weakness point of metro vehicle noise and improve it.
出处
《电力机车与城轨车辆》
2008年第1期6-8,共3页
Electric Locomotives & Mass Transit Vehicles
关键词
统计能量分析
地铁车辆
噪声
声压级
statistical energy analysis
metro vehicle
noise
SPL（ sound pressure level ）
