Location History:
- Liaoning, CN (2021)
- Dalian, CN (2022)
Company Filing History:
Years Active: 2021-2022
Title: Innovations of Chunxu Qu in Structural Health Monitoring
Introduction
Chunxu Qu is a notable inventor based in Liaoning, China. He has made significant contributions to the field of structural health monitoring, particularly in the context of high-speed railway bridges. With a total of three patents to his name, his work focuses on enhancing the accuracy and efficiency of modal identification processes.
Latest Patents
One of Chunxu Qu's latest patents is titled "Method for automatically detecting free vibration response of high-speed railway bridge for modal identification." This innovative method allows for the automatic detection of the free vibration response segment of high-speed railway bridges after trains pass. The process involves pre-selecting the test response sequence based on the maximum time instants corresponding to the absolute maximums of the response vectors at various measuring points. It then extracts the single-frequency modal response using iterative variational mode decomposition and fits the envelope amplitude of the modal response through Hilbert transform. The invention is significant as it effectively detects free vibration data segments without human intervention, facilitating real-time accurate modal analysis of high-speed railway bridges.
Another important patent by Chunxu Qu is the "Automatic method for tracking structural modal parameters." This method employs the Natural Excitation Technique to transform random responses into correlation functions. The Eigensystem Realization Algorithm, combined with the stabilization diagram, is utilized to estimate modal parameters from various response segments. The method classifies modes from the latter response segment as traceable or untraceable based on correlations between their observability vectors and subspaces of existing reference modes. This automatic tracking process enhances the efficiency of structural health monitoring by eliminating the need for artificial thresholds and specified reference modes.
Career Highlights
Chunxu Qu is affiliated with Dalian University of Technology, where he continues to advance research in structural health monitoring. His work has garnered attention for its practical applications in ensuring the safety and reliability of infrastructure.
Collaborations
Chunxu Qu has collaborated with notable colleagues, including Tinghua Yi and Hongnan Li, contributing to the advancement of innovative solutions in his field.
Conclusion
Chunxu Qu's contributions to structural health monitoring through his innovative patents demonstrate his commitment to enhancing the safety and efficiency of high-speed railway infrastructure. His work is paving the way for future advancements in the field.