Location History:
- Liaoning, CN (2021)
- Dalian, CN (2021 - 2022)
Company Filing History:
Years Active: 2021-2022
Title: Innovations of Inventor Tinghua Yi
Introduction
Tinghua Yi is a prominent inventor based in Dalian, China. He has made significant contributions to the field of structural health monitoring and modal identification, holding a total of seven patents. His work focuses on enhancing the safety and efficiency of high-speed railway bridges through innovative detection methods.
Latest Patents
One of his latest patents is titled "Method for automatically detecting free vibration response of high-speed railway bridge for modal identification." This invention provides a method for automatically detecting 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 method effectively identifies the longest structural response segment that meets decay vibration features, which is crucial for real-time modal analysis of high-speed railway bridges.
Another notable patent is the "Sparse component analysis method for structural modal identification when the number of sensors is incomplete." This invention addresses the challenge of structural health monitoring with an incomplete number of sensors. It transforms structural acceleration response data into the time-frequency domain using short-time Fourier transform. The method detects time-frequency points contributed by only one-order mode and refines the detection results to obtain a mode shape matrix. By conducting singular value decomposition on the generalized spectral matrix, it enhances the identification accuracy of structural modal parameters, even with limited sensor data.
Career Highlights
Tinghua Yi is affiliated with Dalian University of Technology, where he continues to advance research in structural engineering and modal analysis. His innovative approaches have garnered attention in the academic and engineering communities, contributing to safer infrastructure.
Collaborations
He has collaborated with notable colleagues, including Hongnan Li and Haibin Huang, to further enhance the impact of his research and inventions.
Conclusion
Tinghua Yi's contributions to the field of structural health monitoring and modal identification demonstrate his commitment to innovation and safety in engineering. His patents reflect a deep understanding of complex engineering challenges and provide effective solutions for modern infrastructure.