A5018167001- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Laser Material Processing Techniques
- Additive Manufacturing Materials and Processes
- Advanced Machining and Optimization Techniques
- Welding Techniques and Residual Stresses
- Laser-induced spectroscopy and plasma
- High Entropy Alloys Studies
- Manufacturing Process and Optimization
- Additive Manufacturing and 3D Printing Technologies
- Advanced Welding Techniques Analysis
- Aluminum Alloy Microstructure Properties
- Fuzzy Logic and Control Systems
- Surface Treatment and Residual Stress
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Advanced Measurement and Metrology Techniques
- Comparative and International Law Studies
- Iterative Learning Control Systems
- Gear and Bearing Dynamics Analysis
- Neural Networks and Applications
- Metallurgy and Material Forming
- Metal and Thin Film Mechanics
- Fault Detection and Control Systems
- High-Temperature Coating Behaviors
Purdue University West Lafayette
2015-2024
Seoul National University
2010-2020
American Society of Mechanical Engineers
2010
University of Central Florida
2008
American Bureau of Shipping
1997-2003
Pacific Northwest National Laboratory
2000
Pennsylvania State University
1989-1992
ExxonMobil (United States)
1979
This paper presents a means to approximate the dynamic and static equations of stochastic nonlinear systems estimate state variables based on radial basis function neural network (RBFNN). After nonparametric model system is constructed from priori experiments or simulations, suboptimal filter designed upper bound error in approximating original unknown plant with output equations. The procedures for both training estimation are described along discussions approximation error. Nonlinear...
Abstract This paper presents a model for the optimization of machining conditions in multi-pass turning operation. Both rough cutting and finishing are considered dual cost functions each subproblem is pursued. The preventive tool replacement strategy used practice incorporated. Machining idle time also regarded as variable. After practical constraints established, carried out using dynamic programming method. An example illustrates formulation problem procedure Additional informationNotes...
Laser direct deposition is widely used for rapid freeform fabrication of fully dense components with good metallurgical properties directly from computer-aided design drawings. Because complex physics involved such as laser powder interaction, substrate track interface evolution, and melt-solid it important to develop simulation models better understand the characteristics mechanisms in process so that optimization control a are possible. In this paper, new comprehensive three-dimensional...
Laser keyhole welding is a complicated multi-phases, multi-physics process, especially when assisting gases are involved. A three-dimensional transient model developed to investigate the dynamics of keyhole, together with vapour plume and molten pool, in self-consistent manner. The features utilization sharp interface method for accurate consideration complex surface phenomena on wall comprehensive hydrodynamic calculation both pool. validated against experiments simulation results...
A numerical model is developed to investigate the three-dimensional transient dynamics of keyhole in continuous welding processes with/without assisting gas. The features utilization sharp interface method for accurate consideration complex boundary conditions on wall and a comprehensive hydrodynamic calculation both gaseous liquid phases. gives good prediction weld geometry, more importantly, provides detailed information regarding multi-phase interaction its effects dynamics. It shown that...