压路机振动对精密仪器影响的研究
发布时间：2019-08-01 15:36
【摘要】：以无锡某地道路施工近距离经过尼康光学仪器厂为研究背景,对现场道路边和厂区内精密仪器所在位置的环境振动进行测试。对测试数据进行统计和处理,得出振动压路机振动速度以及铅垂向Z振级衰减规律,预测厂区精密仪器处振动幅值;并与实测值进行对比。结合国际通用的VC标准,以此评价压路机振动对精密仪器的影响。研究结果表明,压路机引起的地面振动速度和铅垂向Z振级随振心距的增大逐渐减小,衰减规律符合负幂函数关系曲线。预测精密仪器位置处振速v=3.974×10~(-2)mm/s介于VC-A和VC-B曲线之间,满足企业提出的精密仪器振动控制标准。预测精密仪器位置处铅垂向Z振动级VL_z=67.519 db,接近VC-A曲线限值,基本满足企业提出的控制标准。在不考虑精密仪器基础隔振系统的影响下,预测值基本符合环境振动分析仪测量值。
[Abstract]:Based on the research background of Wuxi Road Construction close through Nikon Optical instrument Factory, the environmental vibration of precision instruments on the side of the road and in the factory area is tested. Based on the statistics and processing of the test data, the vibration velocity of vibratory roller and the attenuation law of vertical Z vibration level are obtained, and the vibration amplitude at the precision instrument in the factory area is predicted, and the vibration amplitude is compared with the measured value. Combined with the international VC standard, the influence of roller vibration on precision instruments is evaluated. The results show that the ground vibration velocity and vertical Z vibration level caused by roller decrease gradually with the increase of vibration center distance, and the attenuation law accords with the negative power function curve. The vibration velocity v 鈮，
本文编号：2521838
[Abstract]:Based on the research background of Wuxi Road Construction close through Nikon Optical instrument Factory, the environmental vibration of precision instruments on the side of the road and in the factory area is tested. Based on the statistics and processing of the test data, the vibration velocity of vibratory roller and the attenuation law of vertical Z vibration level are obtained, and the vibration amplitude at the precision instrument in the factory area is predicted, and the vibration amplitude is compared with the measured value. Combined with the international VC standard, the influence of roller vibration on precision instruments is evaluated. The results show that the ground vibration velocity and vertical Z vibration level caused by roller decrease gradually with the increase of vibration center distance, and the attenuation law accords with the negative power function curve. The vibration velocity v 鈮，
本文编号：2521838
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