通用小型汽油机噪声测试传声器位置合适性准则探讨  

Discussion of Microphone Position Suitability for General Utility Small Gasoline Engine Noise Test

作　　者：杨锐 刘建辉 毛文刚 刘琳 杨建伟 Yang Rui;Liu Jianhui;Mao Wengang;Liu Lin;Yang Jianwei(CCIC WEST Testing Company Limited(Xi'an,Shananxi,710032,China))

机构地区：[1]中检西部检测有限公司,陕西西安710032

出　　处：《小型内燃机与车辆技术》2018年第6期67-69,共3页Small Internal Combustion Engine and Vehicle Technique

摘　　要：GB/T 1859.1-2015《往复内燃机声压法声功率级的测定第1部分:工程法》标准于2016年7月1日正式实施,新版标准中增加了噪声测试传声器位置合适性准则。以一台170F型通用小型汽油机为测试对象,通过设计试验,进行不同测量距离和不同传声器位置的数目方案下的噪声测试,探讨满足传声器位置合适性准则要求的方法,为通用小型汽油机噪声测试方法提供参考。The standard GB/T 1859.1-2015 Reciprocating internal combustion engines-Measurement of sound power level using sound pressure-Part 1:Engineering method was formally implemented on July 1,2016.The criteria of microphone positions suitability for noise test was added in the new standard.In this article,a 170F general utility small gasoline engine is used as the test object.Noise tests were design under different measurement distances and different numbers of microphone positions to explore the method to meet the requirements of microphone position suitability,to provide reference for noise test method of general utility small gasoline engines.

关 键 词：通用小型汽油机 噪声测试 传声器位置 合适性准则 

分 类 号：TK419.1[动力工程及工程热物理—动力机械及工程]