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RISFinite Element Analysis Model and Residual Stress Optimization in Rotor Welding Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the finite element method (FEM) is conducted for thermal and mechanical analysis of a half 2D axisymmetric welded rotor model. The temperature results after welding are obtained and supported by the experiment ...
Reduced-Order Modeling for Stability and Steady-State Response Analysis of Asymmetric Rotor Using Three-Dimensional Finite Element Model
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: A generalized and efficient technique of reduced-order model (ROM) is proposed in this paper for stability and steady-state response analysis of an asymmetric rotor based on three-dimensional (3D) finite element model. The ...
Fast Reconstruction Method of the Stress Field for the Steam Turbine Rotor Based on Deep Fully Convolutional Network
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Since it is difficult to directly measure the transient stress of a steam turbine rotor in operation, a rotor stress field reconstruction model based on the deep fully convolutional network for the startup process is ...
Water Droplet Erosion Life Prediction Method for Steam Turbine Blade Materials Based on Image Recognition and Machine Learning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a method for predicting remaining useful life (RUL) of turbine blade under water droplet erosion (WDE) based on image recognition and machine learning is presented. Using the experimental rig for testing the ...
Thermal Performance of a Water Cooled Microchannel Heat Sink With Grooves and Obstacles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the rapid development of microelectromechanical systems (MEMS) in IT industry, the heat flux in microchannel has reached a high level which demands preferable cooling technology. Water cooling has become a favor cooling ...
An Experimental Study on Heat Transfer Enhancement of Non Newtonian Fluid in a Rectangular Channel With Dimples/Protrusions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dimple and protrusion play important roles in the heat transfer enhancement and flow characteristic in cooling channels, which widely employed within electronic cooling systems. NonNewtonian fluid has significant differences ...
Flow and Heat Transfer Characteristics of Single Jet Impinging on Dimpled Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on combined particle image velocimetry (PIV) and numerical simulation, the flow and heat transfer characteristics of a single jet impinging on a dimpled surface for Dj/D = 0.318, 0.5, 1.045; خ´/D = 0.1, 0.2, ...
Flow and Heat Transfer Characteristics in Channels With Groove–Protrusions and Combination Effect With Ribs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Passive flow control and heat transfer enhancement technique has become an attractive method for device internal cooling with low resistance penalty. In the present paper, the flow and heat transfer characteristics in the ...
Numerical Analysis of Flow Structure and Heat Transfer Characteristics in Dimpled Channels With Secondary Protrusions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dimple structure is an effective heat transfer augmentation approach on coolant channel due to its advantage on pressure penalty. The implication of secondary protrusion, which indicates protrusion with smaller dimension ...
Thermal Performance of Miniscale Heat Sink With Jet Impingement and Dimple/Protrusion Structure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cooling technique in a miniscale heat sink is essential with the development of high-power electronics, such as electronic chip. As heat transfer techniques, jet impingement cooling and convective cooling by roughened ...