基于载荷等效合成的多轴载荷谱联合加速编辑方法、装置、电子设备及存储介质
By combining load equivalent synthesis and Wigner-Will time-frequency analysis techniques with a dual-threshold optimization model, the problems of cumbersome multi-axis load spectrum editing process and inconsistent features were solved, achieving efficient multi-axis load spectrum editing, improving fatigue testing efficiency and saving test costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING UNIV
- Filing Date
- 2024-06-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for accelerating the editing of multi-axis load spectra are cumbersome and ineffective. Furthermore, when using synchronously acquired strain as a reference signal, interference or distortion occurs, resulting in inconsistent load characteristics and making it impossible to achieve efficient and accelerated editing of multi-axis load spectra.
Multiaxial load spectra are obtained through load equivalent synthesis theory, preprocessed and multiaxial rainflow projection is performed, the load equivalent synthesis coefficient with the largest pseudo-damage value is determined, instantaneous energy spectrum is obtained by combining Wigner-Will time-frequency analysis technology, and the accelerated editing threshold is determined by a dual-threshold optimization model to delete segments with no/small damage contribution, thereby achieving accelerated editing of multiaxial load spectra.
While ensuring the effectiveness of damage loading, the accelerated editing of multiaxial load spectra is improved, the consistency of load characteristics is maintained, the efficiency of fatigue testing is increased, and the test cost is saved.
Smart Images
Figure CN118585795B_ABST