直升机振动和噪声联合环境对人体的影响

The Effects of Helicopter Noise and Vibration joint Environment on the Human Body

在现有的国军标中,对乘员处有单独的振动和噪声标准。本文提出了振动和噪声联合环境对人体不适度的影响,并通过美国宇航局(NASA)不舒适指数进行衡量,可用这一标准作为新研制直升机振动和噪声环境评估的依据。在此基础上初步计算了某型直升机驾驶舱振动和噪声联合环境下的NASA不舒适性指数,计算结果表明,该型直升机的乘员不舒适百分比达到90%以上,说明了我国直升机在降振、减噪方面的设计有待提高。

In the existing national military standards, there is a separate vibration and noise standards in crew position, this paper presented the effect of vibrations and noises environment on the human body, by NASA discomfort index, could use this standard as the vibration and noise of environment evaluation according to the new development of helicopter. Based on the preliminary calculation of the helicopter in the joint environmental vibration and noise under the NASA comfort index, the results show that most of the helicopter discomfort points reached more than 90%, indicated that our helicopter vibration and noise reduction needs to be improved.