acceleration noise meaning in English
加速骚扰
Examples
- A specialized noise test bench of automobile cooling fan was designed to carry out the bench test and the outer vehicle acceleration noise test also was conducted
设计制造了发动机冷却风扇噪声性能测试专用试验台，用于冷却风扇的台架试验。同时，使用新的风扇原型进行了整车车外加速噪声性能测试。 - In order to carry out the acoustic and aerodynamics performances tests , seven resonators are designed and made , and a specialized engine intake silencer and exhaust silencers test bench was designed . the tests and analysis are performed as well . on the basis of the intake noise spectrum of sc7080a , a three - parallel - connected resonant silencer is designed , and that has efficiently controlled the acceleration noise of sc7080a
在此基础上设计并加工了两类七个共振型进气消声器，研制了发动机进排气消声器性能测试实验台，开发了发动机进排气消声器声学性能测试软件，并在该实验台上测试了所设计的进气消声器静态工况下的传声损失，从实验的角度研究了共振腔的尺寸、形状对其共振频率的影响及其趋势。 - The bench test indicated that noise of the designed cooling fan was apparently decreased . at the important revolution , 3 ~ 4 . 5db ( a ) noise decrease can be expected in the bench test and 1 . 5 ~ 2db ( a ) decrease in the acceleration noise test . with the modification of shroud , a better result can be expected
风扇台架试验测试结果表明，针对研究车型（ sc6331b ）改进设计的冷却风扇，噪声得到较大幅度的下降，在发动机主要工作转速下，风扇噪声下降3 ~ 4 . 5db ( a ) ，由此带来了1 . 5 ~ 2db ( a )左右的整车车外加速噪声的下降。