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本文介绍了国家标准中内燃机噪声测试对声学测试环境的要求 ,提出了内燃机噪声实验室建设的指标。重点介绍了天津大学内燃机学科在 2 11工程建设中 ,利用原有的实验室空间 ,设计和建设半自由声场内燃机噪声实验室的情况。
This paper introduces the requirements of the national standard for noise test of the internal combustion engine on the acoustic test environment and puts forward the index of the construction of the noise engine laboratory of the internal combustion engine. This paper mainly introduces the design and construction of semi-free sound field noise engine of internal combustion engine in the project of 211 engine construction of Tianjin University by using the original laboratory space.