公开(公告)号：US11921001B2

公开(公告)日：2024-03-05

申请号：US17654432

申请日：2022-03-11

Applicant: Hiwin Technologies Corp.

Inventor： Hsien-Yu Chen ,  Yu-Sheng Chiu ,  Chih-Chun Cheng ,  Wen-Nan Cheng ,  Chi-Ming Liu

IPC: G01M13/00 ,  G01M5/00 ,  G05B23/02

CPC classification number: G01M13/00 ,  G01M5/0066 ,  G05B23/0256

Abstract: A method and system for inspecting deviation in dynamic characteristics of a feeding system are provided, and the method includes: exciting the feeding system and detecting vibrations of a subcomponent of a component to be inspected of the feeding system to generate a monitoring excitation signal in a monitoring mode; calculating, by a modal analysis method, monitoring eigenvalues and monitoring eigenvectors of the monitoring excitation signal; determining, by a modal verification method, similarity between the monitoring eigenvalues and standard eigenvalues of a digital twin model and similarity between the monitoring eigenvectors and standard eigenvectors of the digital twin model; determining that the dynamic characteristics of the subcomponent are deviated, when the monitoring eigenvalues and monitoring eigenvectors are not similar to the standard eigenvalues and standard eigenvectors. Therefore, the subcomponent whose dynamic characteristics are deviated can be sensed remotely and precisely.