A portal crane damage detection method based on amplitude-variable trolley acceleration response comprises the following steps that 1, an amplitude-variable trolley-simply supported beam portal crane system is built, and an amplitude-variable trolley is arranged on a cargo boom of a portal crane; 2, an acceleration sensor is arranged on the variable-amplitude trolley, the variable-amplitude trolley moves on the cargo boom of the portal crane at the moving speed v, and the acceleration sensor collects acceleration response data of the variable-amplitude trolley in real time and transmits the acceleration response data to an FFT conversion module; 3, the FFT conversion module converts the acceleration response data of the variable amplitude trolley to obtain an acceleration spectrogram; 4, according to the acceleration spectrogram, modal parameters of the portal crane are obtained through recognition; and 5, detecting and identifying the damage condition of the portal crane according to the modal parameters or the acceleration response data. The method has the effect that the damage result of the simply supported beam portal crane can be accurately detected.
一种基于变幅小车加速度响应的门式起重机损伤检测方法,包括以下步骤:步骤1:搭建变幅小车‑简支梁门式起重机体系,所述变幅小车设置在门式起重机的起重臂上;步骤2:在所述变幅小车上设置加速度传感器,所述变幅小车以移动速度v在门式起重机的起重臂上运动,所述加速度传感器实时采集变幅小车的加速度响应数据,并传递给FFT转换模块;步骤3:所述FFT转换模块对变幅小车的加速度响应数据进行变换,得到加速度频谱图;步骤4:根据所述加速度频谱图,识别得到门式起重机的模态参数;步骤5:根据所述模态参数或加速度响应数据,检测识别门式起重机的损伤情况。效果:能够实现对简支梁门式起重机损伤结果的精准检测。
Portal crane damage detection method based on amplitude-variable trolley acceleration response
基于变幅小车加速度响应的门式起重机损伤检测方法
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Tower crane damage detection method based on amplitude-variable trolley acceleration response
European Patent Office | 2025
|Lifting appliance, portal trolley and double-trolley quay crane
European Patent Office | 2021
|Tower crane variable-amplitude trolley motor replacing device and method
European Patent Office | 2020
|