为测试和分析电机噪声与振动,上海跃进电机厂设计改建了一个工程实用消声室。1983年8月竣工,同年9月、10月份进行了各项声学性能测试,12月份由上海电机公司主持召开了技术鉴定会。会议一致认为,该消声室使用情况良好,各项声学性能符合或优于原设计要求。消声室结构简单,投资省,好施工,工艺流程合理。采用板状复合吸声结构重量轻、成本低、吸声性能佳,为设计建造经济实用的消声室提供了新的有效途径,具有推广价值。 In order to test and analyze the motor noise and vibration, Shanghai Yuejin Motor Factory rebuilt a practical anechoic chamber. Completed in August 1983, the same year in September, October conducted a variety of acoustic performance test, December held by the Shanghai Electric Corporation held a technical appraisal. The meeting agreed that the anechoic chamber in good condition, the acoustic performance in line with or better than the original design requirements. Anechoic chamber structure is simple, investment province, good construction, process and reasonable. The plate-shaped composite sound absorption structure has the advantages of light weight, low cost and good sound absorption performance, which provides a new effective way for designing and constructing an economical and practical anechoic chamber, and has the promotion value.