论文部分内容阅读
对22t液压挖掘机进行噪声检测,分析噪声来源并提出降低噪声的设计方案。设计中综合运用了吸声、隔声和阻尼减振等技术。实施降噪措施后,经再次噪声测试显示无论是驾驶室内噪声还是挖掘机的辐射噪声都比原机降低了6dB(A),超过了国外同类产品的水平,所采取的降噪方法和措施可行,取得良好的降噪效果。
22t hydraulic excavator noise detection, analysis of noise sources and put forward to reduce noise design. The design integrated use of sound absorption, noise and vibration damping technology. After the noise reduction measures were implemented, the noise test again showed that both the noise inside the cab and the radiated noise of the excavator were reduced by 6dB (A) compared with the original machine, which exceeded the level of similar foreign products. The noise reduction methods and measures adopted were feasible , Get a good noise reduction effect.