建立某汽车排气消声器的声学分析模型，采用有限元法和边界元法对排气消声器的传递损失进行了仿真分析和试验测试。
The acoustic analysis model for an automotive exhaust muffler is built, and the transmission loss of exhaust muffler is measured by test and also simulated by using both FEM and BEM.
在大量试验的基础上，分析了横流风机与离心风机串联时总排气性能与单机排气性能的关系。
Based on the abundant experiments, this paper analyzed the exhaust performance when fans are in series arranged.
并根据声学理论分析排气噪声，提出理论上的予计及试验实测压缩机排气噪声的一种方法。
And then, according to the theory of acoustics, the noise of the discharge of a compressor is analysed and a method of prediction and testing of the discharge has been recommended.
建立了包括调速器、柴油机本体、后排气管路的水下柴油机动力系统的动态及稳态过程分析模型，并进行了试验验证。
A transient process and steady state simulation model of underwater diesel engine system, including governor, diesel engine and rear exhaust pipe system, was developed and verified in this paper.
介绍了一种汽油机的快速稀燃系统，并对该系统的喷油时刻，燃油调整特性，外特性及排气性能等进行了试验分析。
A lean mixture combustion system is presented in this paper. And the test effect of fuel injection time, fuel adjustment, miximum load speed and emission characteristics are analysed.
介绍了一种汽油机的快速稀燃系统，并对该系统的喷油时刻，燃油调整特性，外特性及排气性能等进行了试验分析。
A lean mixture combustion system is presented in this paper. And the test effect of fuel injection time, fuel adjustment, miximum load speed and emission characteristics are analysed.
应用推荐