A5031632192- Minerals Flotation and Separation Techniques
- Dynamics and Control of Mechanical Systems
- Structural Response to Dynamic Loads
- Machine Fault Diagnosis Techniques
- Model Reduction and Neural Networks
- Fluid Dynamics and Vibration Analysis
- Probabilistic and Robust Engineering Design
- Gear and Bearing Dynamics Analysis
- Vibration and Dynamic Analysis
- Mine drainage and remediation techniques
- Structural Health Monitoring Techniques
- Analytical chemistry methods development
Nanjing Forestry University
2022
Intelligent fault diagnosis of rotors always requires a large amount labeled samples, but insufficient vibration signals can be obtained in operational rotor systems for detecting the modes. To solve this problem, domain-adaptive transfer learning model based on small number samples is proposed. Time-domain are collected by overlapping sampling and converted into time-frequency diagrams using short-time Fourier transform (STFT) characteristics time domain frequency reserved. The features...
A collision with clearance causes obvious nonlinearity in structures, and dynamic response analysis plays an important role predicting the mechanical performance of structure. The general form nonlinear equation a structure modeling method are introduced, clearance-caused term is expressed by impact forces. Different models local structures presented. relationships between different forces clearances analyzed two rigid sphere models. solution methods compared vibro-impact response, such as...