Acoustic emission monitoring experiment system for crack fault of root bolt of wind power blade

• Main Authors: XU JIN, DING XIAN, GONG YONGLI
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention provides an acoustic emission monitoring experiment system for a crack fault of a root bolt of a wind power blade. The acoustic emission monitoring experiment system comprises a test bed, a blade root model, a vibration exciter, an acoustic emission sensor, a data collector and a data analysis device, the test bed is fixedly arranged, the blade root model is fixed on the test bed through a fastening bolt, the vibration exciter is arranged close to the blade root model and is used for applying set acting force to the blade root model, and the acoustic emission sensor is arranged on the blade root model and is used for collecting acoustic emission signals when the blade root model is stressed; the data collector is in communication connection with the acoustic emission sensor and used for receiving signals sent by the acoustic emission sensor, and the data analysis device is in communication connection with the data collector and used for analyzing data. According to the invention, the experiment