基于有限元分析的高处作业坠落冲击试验系统研究

Research on Falling Impact Test System for High-Altitude Work Based on Finite Element Analysis

摘要: 针对高处作业防护装备动态冲击测试效率低下、具有危险性的问题，本文利用无线测控、激光测距等技术，开发了一套刚性好、防护可靠、操控便捷、检测范围广的冲击试验系统。通过有限元仿真，对碳钢、球墨铸铁、铸钢、硬铝合金四种材料进行对比分析，选择Q235碳钢钢架研制了冲击试验架。研制了坠落试验提锁机、智能激光测距重块、无线控制自动释放器等配套设备，提高了试验的整体安全性与精确性，提升了我国高处作业防护装备检测领域的整体水平。

Abstract: Aiming at the problem of low efficiency and danger of dynamic impact test for protective equipment at high altitude, a set of impact test systems with good rigidity, reliable protection, convenient operation and wide detection range is developed by using wireless measurement and control technology and laser ranging technology. Through finite element simulation, four kinds of materials, carbon steel, nodular cast iron, cast steel and hard aluminum alloy, were compared and analyzed. The impact test frame was developed with Q235 carbon steel frame. The auxiliary equipments such as drop test lock-lifting machine, intelligent laser ranging heavy block and wireless automatic release device are developed, which improves the overall safety and accuracy of the test and the overall level of the detection field of high-altitude operational protective equipment in China.