集装箱提升和移动中传感器支架振动的测量

A measurement of vibrations of sensor holders of a container in lifting and moving operations

在起重机搬运集装箱的过程中,振动和冲击会损坏集装箱的底层结构(如传感器支架).为确保传感器支架在运输时正常工作,对传感器的状态进行监测并采取相应补救措施.通过理论分析和实验测量相结合的方式,对集装箱结构中传感器支架的振动进行了研究.结果表明,在12~25 Hz频段,传感器支架有较大的位移响应;在4100~5000 Hz频段,传感器支架有较大的加速度响应.因此,可以针对这两个主要频率区间进行初步隔振方案设计,并讨论可行性分析和优化目标.

In the process of container handling with cranes,vibrations and impacts can damage substructures of a container such as a sensor holder.To ensure the normal operation of sensor holder during transportation,it is necessary to monitor conditions of sensors and take remediation.A theoretical analysis and experimental measurement are combined to investigate vibrations of the sensor holder of a container structure.The results show that the sensor holder has a large displacement response in the frequency range of 12–25 Hz.The sensor holder has a large acceleration response in the frequency range of 4100–5000 Hz.A preliminary vibration isolation scheme design can be proposed with the consideration of these two frequency bands,and feasibility analysis and optimization targets are discussed.