A5005164171- Reliability and Maintenance Optimization
- Risk and Safety Analysis
- Software Reliability and Analysis Research
- Non-Destructive Testing Techniques
- Tribology and Lubrication Engineering
- Advanced Measurement and Detection Methods
- Industrial Vision Systems and Defect Detection
- Welding Techniques and Residual Stresses
- Probabilistic and Robust Engineering Design
- Statistical Distribution Estimation and Applications
- Iterative Learning Control Systems
- Optical measurement and interference techniques
- Advanced Measurement and Metrology Techniques
- Gear and Bearing Dynamics Analysis
Xi'an Jiaotong University
2018-2019
Welding defect detection in a radiographic image is an important topic the field of industrial non‐destructive testing. To improve accuracy welding segmentation, local enhancement approach proposed. In this algorithm, requirement contrast considered when extracting weld seam and segmenting defect. The whole conducted by three procedures: enhancement, extraction, segmentation. Firstly, method for determining Localised Pixel Inhomogeneity Factor (LPIF) Then, based on results LPIF, Otsu applied...
In the paper, deformation of inner surface flexspline (FS) harmonic drive (HD) is different with top flexible gear presented. For improving meshing qualities drive, to analysis cause deformation, avoid interference between FS and circular spline (CS), curvature difference tooth after analyzed based on ring theory. order make deformed profile reach predetermined position, this paper takes double arc tangent as an example; a new was designed by shifting coordinates undercutting during meshing,...
Purpose The purpose of this paper is to analyze the changes in its importance due maintenance and repair components. Design/methodology/approach In paper, a concept time-varying measure proposed solve problem component change caused by maintenance. When system broken-down, probability difference between works well after repairing break down before solved, measured as an index method. Then, approach has been verified CNC machine tool. Findings provides method components can evaluate anytime...
Importance analysis deals with the investigation of influence individual system component on operation. This paper mainly focuses dynamic important components in a multistate system. Assuming that failure probabilities are independent, new time integral-based importance measure approach (TIIM) is proposed to loss performance caused by each component. Reversely can be evaluated according magnitude it. Moreover, varying curve described calculating criticality at state. On other hand, approach,...
Importance analysis deals with the influence of individual system component on operation. Thus, a lot failure data should be collected to make more accurate. This paper mainly focuses numerical estimation importance in complex mechanical which is considered as multi-state few data. In order evaluate components’ probability distribution by small sample data, time integral measure (TIIM) approach proposed. this measure, we aim using change performance caused wiping off On basis, dynamic...