Patents by Inventor Yunfeng Sheng

Yunfeng Sheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for detecting health status of a bolt that fastens a rotor blade of a wind turbine
    Patent number: 11402286
    Abstract: The present invention discloses methods and systems for detecting the health status of a bolt which fastens a rotor blade of a wind turbine. Values of the axial stress/strain of the bolt and motion and orientation data are acquired in different aerial orientations. Values of the prestress/strain and load-stress/strain are obtained using the values of the axial stress/strain and the motion and orientation data. Values of the prestress/strain and load-stress/strain are compared with the reference values. The health status of the bolt, rotor blade, and the wind turbine system is determined based on the comparison results. The method is noninvasive and doesn't affect the function and performance of the bolt and the turbine system.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 2, 2022
    Inventors: Shuangwen Liu, Lei Liu, Zhuang Li, Yunfeng Sheng, Jiajun Yao
  • METHOD AND SYSTEM FOR DETECTING HEALTH STATUS OF A BOLT THAT FASTENS A ROTOR BLADE OF A WIND TURBINE
    Publication number: 20210063261
    Abstract: The present invention discloses methods and systems for detecting the health status of a bolt which fastens a rotor blade of a wind turbine. Values of the axial stress/strain of the bolt and motion and orientation data are acquired in different aerial orientations. Values of the prestress/strain and load-stress/strain are obtained using the values of the axial stress/strain and the motion and orientation data. Values of the prestress/strain and load-stress/strain are compared with the reference values. The health status of the bolt, rotor blade, and the wind turbine system is determined based on the comparison results. The method is noninvasive and doesn't affect the function and performance of the bolt and the turbine system.
    Type: Application
    Filed: September 26, 2019
    Publication date: March 4, 2021
    Applicant: Zhejiang Future Technology Institute (jiaxing)
    Inventors: Shuangwen Liu, Lei Liu, Zhuang Li, Yunfeng Sheng, Jiajun Yao