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A method for reconstructing the dynamic displacement of floating structures based on acceleration measurements and
Shujian Gao1, Xi Chen2, Zewen Pan2
1Shandong Province Key Laboratory of Ocean Engineering, Ocean University of China, 266100, Qingdao, China. gaoshujian@ouc.edu.cn.
Communications Engineering
|April 8, 2025
Summary
This study introduces a new method to accurately measure the dynamic displacement of floating marine structures using acceleration data. The technique precisely removes drift, improving accuracy and efficiency for offshore structural monitoring.
Area of Science:
- Ocean Engineering
- Structural Health Monitoring
- Marine Technology
Background:
- Accurate dynamic response measurement is vital for marine structure safety.
- Floating structures lack fixed reference points, complicating displacement measurement.
- Existing methods face challenges like drift and low-frequency loss.
Purpose of the Study:
- To develop a robust method for reconstructing dynamic displacement of floating structures from acceleration data.
- To overcome limitations of non-contact measurement devices in marine environments.
- To improve accuracy and efficiency compared to current displacement reconstruction techniques.
Main Methods:
- Reconstruction of dynamic displacement from acceleration measurements.
- Precise removal of drift terms to prevent integration errors.
- Validation through physical model testing and field applications.
Main Results:
- The proposed method accurately reconstructs dynamic displacement.
- Dual improvements in reconstruction accuracy and efficiency were achieved.
- The method effectively addresses drift and low-frequency component loss.
Conclusions:
- The developed method offers a reliable solution for dynamic displacement measurement in complex marine environments.
- It demonstrates broad potential for offshore floating structures and other applications.
- This technique enhances the safety and efficiency of marine structure monitoring.
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