重庆主城区公交车车内噪声水平试验研究  

Experimental Study on Interior Noise of Bus in Chongqing

作　　者：黄乐 陈婷婷[2] 陈刚才[2] 周贤杰[2] 蔡锋[2] 

机构地区：[1]重庆临空现代服务业投资促进有限公司,重庆401120 [2]重庆市环境科学研究院,重庆401147

出　　处：《环境影响评价》2017年第2期76-80,共5页Environmental Impact Assessment

基　　金：家水体污染控制与治理科技重大专项(2012ZX07104-001);重庆市环境保护局环保科技项目(环科字2014CF第204号);重庆市基本科研计划项目(2013cstc-jbky-01614)

摘　　要：选择4款在重庆市主城区具有典型代表性的中型在用公交车进行市区行驶条件下的空载噪声试验,测定其车内噪声水平。结果表明,受发动机转速和车速的影响,同一车辆不同路段噪声水平大小顺序为上坡>平路>下坡>其他>弯道>红绿灯;受车况和发动机安置方式的影响,相同路段不同车型噪声水平大小顺序为前置发动机普通车>前置发动机中级车>后置发动机中级车>后置发动机高级车;受测试区域的影响,相同路段后置发动机车乘客区噪声水平明显大于驾驶区,前置发动机车乘客区噪声水平略小于驾驶区。在48个评价值中,驾驶区和乘客区出现噪声超标的数量分别为5个、3个。An off-load noise comparative experiment was designed to study the interior noise of bus under urban driving conditions, using four kinds of representative medium-sized buses in Chongqing. Influenced by engine speed and travel speed, the order of noise level in one certain bus at different road sections was as follows ： uphill 〉 level road 〉 downhill 〉 other conditions 〉 bend 〉 traffic lights. Influenced by bus condition and engine installation position, the noise level of different buses at the same road section followed the order： conventional bus with front engine 〉 middle class bus with front engine 〉 middle class bus with rear engine 〉 high class bus with rear engine. At the same road section, the noise in passenger compartment was apparently higher than that in the driver compartment with rear engine. However, it was slightly lower in buses with front engine. Among the 48 evaluation values, the number of values that failed to reach qualified noise standard in driver compartment and passenger compartment were 5 and 3.

关 键 词：公交车 运行 噪声水平 影响因素 

分 类 号：TB53[理学—物理]