液压变轨起重机是一种专门用于井下安装的设备。伸缩臂是液压变轨起重机工作时的重要受力部件,对伸缩臂进行受力分析至关重要。对液压变轨起重机的伸缩臂做模态分析,来提高液压变轨起重机整机工作的稳定性和安全性。 Hydraulic rail crane is a dedicated installation for underground equipment. Telescopic boom is an important force component of hydraulic rail crane. It is very important to analyze the force of the telescopic boom. The telescopic arm of the hydraulic orbit crane is modeled to improve the stability and safety of the whole work of the hydraulic orbit crane.