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Article
A distributed model predictive control with machine learning for automated shot peening machine in remanufacturing processes
In practical peening operation, the values of inlet air pressure and media flow rate are manually preset to acquire desired intensity requirements. The operator often needs to perform intensive experimental tr...
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Chapter and Conference Paper
Effect of Coefficients of Restitution on the Particle Dynamics in Cold Spray and Shot Peening
Effects of coefficients of restitution (COR) on the particle fate are evaluated numerically using Ansys Fluent. Two applications namely shot peening and cold spray are selected and particle velocities and spat...
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Chapter and Conference Paper
A PID Model Based Controller for Automated Shot Peening Processes
This study reports a newly developed model-based controller for automated shot peening processes. The proportional-integral-derivative (PID) controller is developed based on process model to provide an optimal...
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Article
A blended empirical shot stream velocity model for improvement of shot peening production
Peening intensity and coverage are vital measurement outputs to quantify the quality of a peening process in the surface enhancement operation of metal parts. In practice, these parameters can only be measured...
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Article
Advanced model-based controller for cyber-physical shot peening process
This study reports new development of a practical model-based controller (namely model predictive control, MPC) for shot peening, which is the first application to such a process for fully automated operation....
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Chapter and Conference Paper
Enhancement of the DDT Process with Energetic Solid Particle
In the pulse detonation engine development, it is believed that the presence of solid particles can rapidly accelerate the flame speed and facilitate a rapid transition to the detonation. In this study, numeri...
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Chapter and Conference Paper
Numerical Study on a Cycle of Liquid Pulse Detonation Engines
A typical cycle of a liquid pulse detonation engine (PDE) often involves three main processes, which are injection and evaporation process, deflagration-to-detonation transition process (DDT), and detonation p...
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Chapter and Conference Paper
Crumpling Behavior of Graphene Oxide in Jet A-1 Vapor in Air and Its Effects on Combustion Process
This paper presents the crumpling behavior of graphene oxide (GO) nanosheets in Jet A-1 vapor in air and its effects in Jet A-1 fuel on the combustion process. The results indicate that a longer vaporized dura...
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Chapter
On the Investigation of Detonation Re-initiation Mechanisms and the Influences of the Geometry Confinements and Mixture Properties
The topic of detonation re-initiation is studied through both experimental measurements and numerical simulations using a bifurcation channel and the detonation research facilities in Temasek Laboratories. The...
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Chapter and Conference Paper
Model Order Reduction for Reacting Flows: Laminar Gaussian Flame Applications
A model reduction technique based on Galerkin projection, proper orthogonal decomposition (POD), and the discrete empirical interpolation method (DEIM) is developed for chemically reacting flow applications. T...
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Chapter and Conference Paper
Numerical Simulation of Combustion Process for Two-Phase Fuel Flows Related to Pulse Detonation Engines
In this study, combustion process is simulated for two-phase fuel flows (droplets of the liquid fuel and gas mixture of the fuel vapor and oxygen) using a combination of Lagrangian–Eulerian approaches. The Lag...
