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A platform for research: civil engineering, architecture and urbanism
Bolt tightness state monitoring method and system for offshore wind power foundation structure
The invention provides a bolt tightness state monitoring method and system for an offshore wind power foundation structure, and the method and system can monitor the vibration change information of the offshore wind power foundation structure through an installed vibration sensor. After the natural vibration frequency detection value of the offshore wind power foundation structure is calculated according to the vibration change information of the detection window, the screw loosening condition can be accurately judged based on the comparison result of the natural vibration frequency detection value and the standard value, more economic and labor costs are saved in practical application, and the working efficiency is improved. And the structural strength of the wind power facility is not influenced. Meanwhile, the position where the bolt is loosened can be determined according to the change direction of the modal shape, and more comprehensive monitoring is achieved.
本申请提供了一种海上风电基础结构的螺栓松紧状态监测方法及系统，该方案可以通过安装的振动传感器来对海上风电基础结构的振动变化信息进行监测，根据所述检测窗口的振动变化信息计算所述海上风电基础结构的自振频率检测值后，基于该自振频率检测值与标准值的对比结果，可以准确地对螺丝松动情况进行判断，并且实际应用时更加节约经济和人工成本，不会对风电设施本身的结构强度造成影响。同时，还可以根据所述模态振型的变化方向，确定发生螺栓松动的位置，实现更加全面的监测。
Bolt tightness state monitoring method and system for offshore wind power foundation structure
The invention provides a bolt tightness state monitoring method and system for an offshore wind power foundation structure, and the method and system can monitor the vibration change information of the offshore wind power foundation structure through an installed vibration sensor. After the natural vibration frequency detection value of the offshore wind power foundation structure is calculated according to the vibration change information of the detection window, the screw loosening condition can be accurately judged based on the comparison result of the natural vibration frequency detection value and the standard value, more economic and labor costs are saved in practical application, and the working efficiency is improved. And the structural strength of the wind power facility is not influenced. Meanwhile, the position where the bolt is loosened can be determined according to the change direction of the modal shape, and more comprehensive monitoring is achieved.
本申请提供了一种海上风电基础结构的螺栓松紧状态监测方法及系统，该方案可以通过安装的振动传感器来对海上风电基础结构的振动变化信息进行监测，根据所述检测窗口的振动变化信息计算所述海上风电基础结构的自振频率检测值后，基于该自振频率检测值与标准值的对比结果，可以准确地对螺丝松动情况进行判断，并且实际应用时更加节约经济和人工成本，不会对风电设施本身的结构强度造成影响。同时，还可以根据所述模态振型的变化方向，确定发生螺栓松动的位置，实现更加全面的监测。
Bolt tightness state monitoring method and system for offshore wind power foundation structure
海上风电基础结构的螺栓松紧状态监测方法及系统
YANG SANYUAN (author) / YANG ANTAO (author) / ZHUO YANG (author) / XUE BOWEN (author) / WANG XIAOWEI (author) / CHEN XI (author) / LI TIAN (author)
2023-11-14
Patent
Electronic Resource
Chinese
IPC:
G01M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
,
Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen
/
E02D
FOUNDATIONS
,
Gründungen
/
G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
,
Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen
OFFSHORE WIND POWER FOUNDATION WITH IMPROVED WATER-TIGHTNESS AND CONSTRUCTION METHOD THEREOF
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