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Articles 241 - 270 of 619
Full-Text Articles in Mechanical Engineering
The Phenomenon Of High Frequency Confinement On Tig Arc In Tig Arc Welding, Yunlong Chang
The Phenomenon Of High Frequency Confinement On Tig Arc In Tig Arc Welding, Yunlong Chang
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Hot Deformation Behavior And Hansel–Spittel Constitutive Model Of Cr5 Alloy For Heavy Backup Roll, Xuewen Chen, Xiang Ma, Huijun Zhou
Hot Deformation Behavior And Hansel–Spittel Constitutive Model Of Cr5 Alloy For Heavy Backup Roll, Xuewen Chen, Xiang Ma, Huijun Zhou
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Design And Manufacturing Of Automotive Parts With Tailored Mechanical Properties, Lin Hua, Yanli Song, Yu Han, Yuhan Shen
Design And Manufacturing Of Automotive Parts With Tailored Mechanical Properties, Lin Hua, Yanli Song, Yu Han, Yuhan Shen
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Temperature Distributions Influencing Lateral Spread In Industrial Hot Rolling, Baohui Tian, Siegfried Kleber, Silvia Zinner, Peter Markiewicz
Temperature Distributions Influencing Lateral Spread In Industrial Hot Rolling, Baohui Tian, Siegfried Kleber, Silvia Zinner, Peter Markiewicz
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Numerical Simulation Of Material Flow During Fsw To Predict Defect Generation Based On Non-Uniform Tool–Material Contact Condition, Yu-Can Zhu, Gao-Qiang Chen, Shuai Zhang, Qi-Long Cheng, Qi-Long Cheng, Gong Zhang, Qing-Yu Shi
Numerical Simulation Of Material Flow During Fsw To Predict Defect Generation Based On Non-Uniform Tool–Material Contact Condition, Yu-Can Zhu, Gao-Qiang Chen, Shuai Zhang, Qi-Long Cheng, Qi-Long Cheng, Gong Zhang, Qing-Yu Shi
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Modeling And Simulation Of Dendrite And Porosity Evolution During Solidification In The Molten Pool Of Al–Cu Alloys, Cheng Gu, Yanhong Wei, Xiaohong Zhan
Modeling And Simulation Of Dendrite And Porosity Evolution During Solidification In The Molten Pool Of Al–Cu Alloys, Cheng Gu, Yanhong Wei, Xiaohong Zhan
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
The Simulation For Ultrasonic Testing Based On Frequency-Phase Coded Excitation, Jiaying Zhang, Wenlong Tian, Tie Gang, Sen Cong, Zhaoyang Sheng
The Simulation For Ultrasonic Testing Based On Frequency-Phase Coded Excitation, Jiaying Zhang, Wenlong Tian, Tie Gang, Sen Cong, Zhaoyang Sheng
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Research Of The Metal Flow Picture In The Upsetting Based On Computer And Physical Simulation, Konstantin Nikolaevich Solomonov
Research Of The Metal Flow Picture In The Upsetting Based On Computer And Physical Simulation, Konstantin Nikolaevich Solomonov
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Study On Growth Model Of Cellular Automata Method In Solidification Simulation, Zhao Guo, Jian-Xin Zhou, Ya-Jun Yin, Chang-Chang Liu
Study On Growth Model Of Cellular Automata Method In Solidification Simulation, Zhao Guo, Jian-Xin Zhou, Ya-Jun Yin, Chang-Chang Liu
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Fe Simulation For Accuracy Evolution And Control In Hot Forging Of Non-Circular Spur Bevel Gear, Wuhao Zhuang, Xinghui Han
Fe Simulation For Accuracy Evolution And Control In Hot Forging Of Non-Circular Spur Bevel Gear, Wuhao Zhuang, Xinghui Han
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Design And Validation Of Parametric Modelling Platform Based On Abaqus, Weiwei Wang, Binbin Jia, Nan Zheng, Chen Zhao
Design And Validation Of Parametric Modelling Platform Based On Abaqus, Weiwei Wang, Binbin Jia, Nan Zheng, Chen Zhao
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Calphad-Based Materials Genome And Its Applications To Additive Manufacturing, Wei Xiong
Calphad-Based Materials Genome And Its Applications To Additive Manufacturing, Wei Xiong
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Fine Element Simulation Of A Modified Fine-Blanking Process To Eliminate The Die-Roll Size, Lin Hua, Bo Tang, Yanxiong Liu, Huajie Mao
Fine Element Simulation Of A Modified Fine-Blanking Process To Eliminate The Die-Roll Size, Lin Hua, Bo Tang, Yanxiong Liu, Huajie Mao
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Thermodynamic And Compositional Assessment Of Q-Phase In Al–Si–Mg–Cu Alloys Using 3dapt And In-Situ Tem, Andrew Bobel, Weiwei Zhang, Nick Hatcher, Qigue Wang, Mike Walker, Greg Olson
Thermodynamic And Compositional Assessment Of Q-Phase In Al–Si–Mg–Cu Alloys Using 3dapt And In-Situ Tem, Andrew Bobel, Weiwei Zhang, Nick Hatcher, Qigue Wang, Mike Walker, Greg Olson
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Integration Of Advanced Simulation And Visualization For Material Processing, Chenn Zhou
Integration Of Advanced Simulation And Visualization For Material Processing, Chenn Zhou
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Recent Advances In Four-Dimensional Studies Of Advanced Materials And Processing, Jiawei Mi
Recent Advances In Four-Dimensional Studies Of Advanced Materials And Processing, Jiawei Mi
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Flow Stress And Microstructure Models Of Alloys, Lars-Erik Lindgren
Flow Stress And Microstructure Models Of Alloys, Lars-Erik Lindgren
The 8th International Conference on Physical and Numerical Simulation of Materials Processing
No abstract provided.
Using Everyday Objects To Engage Students In Standards Education, Margaret Phillips, Paul Mcpherson
Using Everyday Objects To Engage Students In Standards Education, Margaret Phillips, Paul Mcpherson
Libraries Faculty and Staff Presentations
This paper describes an innovative approach to standards education in an undergraduate mechanical engineering technology design course. The work is focused on making standards appeal to students by using “everyday objects” (e.g. toaster, ladder, grill, etc.) as catalysts to introduce the topic of standards in a way that connects to students’ daily lives. The project involves instructor-librarian collaboration to incorporate information literacy and campus library resources into the standards curricula, so that students not only become familiar with standards resources, but also proficient at searching for and locating the documents. Preliminary results and observations indicate this is an effective approach …
Modeling Of A Roll-To-Roll Plasma Cvd System For Graphene, Yudong Chen, Majed A. Alrefae, Anurag Kumar, Timothy S. Fisher
Modeling Of A Roll-To-Roll Plasma Cvd System For Graphene, Yudong Chen, Majed A. Alrefae, Anurag Kumar, Timothy S. Fisher
The Summer Undergraduate Research Fellowship (SURF) Symposium
Graphene is a 2D carbon material that has extraordinary physical properties relevant to many industrial applications such as electronics, oxidation barrier and biosensors. Roll-to-roll plasma chemical vapor deposition (CVD) has been developed to manufacture graphene at large scale. In a plasma CVD chamber, graphene is grown on a copper foil as it passes through a high-temperature plasma region. The temperatures of the gas and the copper foil play important roles in the growth of graphene. Consequently, there is a need to understand the temperature and gas velocity distributions in the system. The heat generated in the plasma creates a thermal …
Dynamic Modeling And Validation Of Micro-Chp Systems, Apurva Badithela, Neera Jain, Austin Nash
Dynamic Modeling And Validation Of Micro-Chp Systems, Apurva Badithela, Neera Jain, Austin Nash
The Summer Undergraduate Research Fellowship (SURF) Symposium
Micro-Combined Heat and Power (micro-CHP) units locally generate electricity to simultaneously provide power and heat for residential buildings. Apart from the potential benefits of reducing carbon emissions and increasing robustness to brownouts and blackouts, micro-CHP systems can be controlled to meet energy demands. Micro-CHP systems consist of a prime mover that generates electricity, such as a fuel cell, an internal combustion engine, or a Stirling engine, and a waste heat recovery system that enables utilization of heat generated as a byproduct of electricity generation. Often, a thermal energy storage system is integrated with micro-CHP systems, thereby decoupling, in time, the …
Fluid Flow Thermometry Using Thermographic Phosphors, Gabriel J. Fenoglio, Humberto J. Detrinidad, Aman Satija, Alex D. Casey, Robert P. Lucht, Terrence R. Meyer
Fluid Flow Thermometry Using Thermographic Phosphors, Gabriel J. Fenoglio, Humberto J. Detrinidad, Aman Satija, Alex D. Casey, Robert P. Lucht, Terrence R. Meyer
The Summer Undergraduate Research Fellowship (SURF) Symposium
Phosphor thermometry is a non-intrusive thermometry technique that allows for spatially and temporally resolved surface temperature measurements. The thermographic method has been employed in a number of applications that include combustion, sprays, and gas flows. In the current work, we investigate the implementation of thermographic phosphors in liquid flows, which is of interest in a wide range of applications in heat transfer, fluid mechanics, and thermal systems. Zinc oxide doped with Zinc (ZnO:Zn) was the phosphor employed for experimentation due to its high emission intensity and insolubility. In order to explore this application, the phosphor powder was uniformly dispersed in …
Pore Scale Transport Of Miscible And Immiscible Fluids In Porous Media, Tolulope O. Odimayomi, Arezoo M. Ardekani
Pore Scale Transport Of Miscible And Immiscible Fluids In Porous Media, Tolulope O. Odimayomi, Arezoo M. Ardekani
The Summer Undergraduate Research Fellowship (SURF) Symposium
The separation of harmful or valuable substances entrapped in porous media has applications in processes such as enhanced oil recovery, diffusion in tissue, and aquifer remediation. In this study the motion and removal rate of immiscible and miscible solutions have been analyzed to gain understanding of solvent effectiveness as it is diluted due to diffusion or mixing within porous materials. The extraction of oil using water, a surfactant solution of 4% CTAB in water, and a foam produced form the surfactant solution is observed using two dimensional flows between parallel slides containing cylindrical obstacles. The fluid motion is visualized. The …
Laser-Assisted Microchanneling On Pmma Substrate Utilizing Two-Pass Fabrication Method, Sijie Zhang, Yung C. Shin
Laser-Assisted Microchanneling On Pmma Substrate Utilizing Two-Pass Fabrication Method, Sijie Zhang, Yung C. Shin
The Summer Undergraduate Research Fellowship (SURF) Symposium
Microchannel is widely used in microfluidic devices for mixing, chemical reaction, detection, particle separation and etc. CO2 laser-based microchanneling of PMMA as a low cost, rapid, noncontact fabrication method has attracted the attention of industry. However, the typical V-shape grooves fabricated by CO2 laser microchanneling have limitations since the V-shape grooves will affect the flow behavior and heat transfer of the fluid, which are important to the performance of microfluidic devices. A two-pass fabrication method is proposed and investigated in this paper to improve the quality of the PMMA microchannel fabricated by CO2 laser. It was found …
Development Of A Diode-Laser Absorption-Spectroscopy Sensor For Real-Time Control Of Combustion Systems, Rahul P. Balla, Christopher S. Goldenstein
Development Of A Diode-Laser Absorption-Spectroscopy Sensor For Real-Time Control Of Combustion Systems, Rahul P. Balla, Christopher S. Goldenstein
The Summer Undergraduate Research Fellowship (SURF) Symposium
Tunable diode-laser absorption spectroscopy (TDLAS) sensors are widely used for measuring gas properties. These sensors offer several advantages including: small footprint, affordability, applicability to harsh environments, rapid time response, and calibration-free operation. As a result, diode-laser sensors can be integrated into control-systems and have previously been used to control gas-turbine combustors. In this study, high-frequency sine waves were generated continuously by a LabVIEW program to simultaneously scan and modulate the wavelength and intensity of a diode laser. The modulated laser light was transmitted 20 cm through the air and measured on a photodetector. Custom-built lock-in software was used to acquire …
Dynamic Modeling Of Contact-Mode Triboelectric Generators By Lagrange’S Equations, Sean M. Gauntt, James Gibert
Dynamic Modeling Of Contact-Mode Triboelectric Generators By Lagrange’S Equations, Sean M. Gauntt, James Gibert
The Summer Undergraduate Research Fellowship (SURF) Symposium
Electret based energy scavenging devices utilize electrostatic induction to convert mechanical energy into electrical energy. Uses for these devices include harvesting ambient energy in the environment and acting as sensors for a range of applications. These types of devices have been used in MEMS applications for over a decade. However, recently there is an interest in Triboelectric generators/harvesters, i.e., electret based harvesters that relies on triboelectrification as well as electrostatic induction. The literature is filled with a variety of designs for the latter devices, constructed from materials ranging from paper and thin films; rendering the generators lightweight, flexible and inexpensive. …
Effect Of Aggregation And Particle Size On The Thermal Conductivity Of Nickel-Epoxy Nanocomposites, Jacob M. Faulkner, Xiangyu Li, Xiulin Ruan Dr.
Effect Of Aggregation And Particle Size On The Thermal Conductivity Of Nickel-Epoxy Nanocomposites, Jacob M. Faulkner, Xiangyu Li, Xiulin Ruan Dr.
The Summer Undergraduate Research Fellowship (SURF) Symposium
Microprocessor advancements have been stunted in recent years by inadequate means of heat dissipation as power continues to grow and size continues to shrink. One way to increase thermal conductivity while maintaining electrical insulation is to add metal nanoparticles to a polymer matrix. This cheap material has become a popular thermal interface for this reason. However, optimization of the interface is dependent upon a number of factors including particle size, shape, orientation, and aggregation. Various theoretical models and numerical approximations have been developed to find the effective thermal conductivity of such nanocomposites, but none has been able to fully incorporate …
The Effect Of Honeycomb Cavity: Acoustic Performance Of A Double-Leaf Micro Perforated Panel, Yuxian Huang, Kai Ming Li
The Effect Of Honeycomb Cavity: Acoustic Performance Of A Double-Leaf Micro Perforated Panel, Yuxian Huang, Kai Ming Li
The Summer Undergraduate Research Fellowship (SURF) Symposium
A micro perforated panel (MPP) is a device consisting of a thin plate and submillimeter perforations for reducing low frequency noise. MPPs have many advantages compared to traditional sound absorption materials, such as durability and designability, and they can be used in a variety of places such as room interior designs, passenger and crew compartments of aircrafts and combustion engines. The models in this study were designed and fabricated with the latest 3-D printing technology. The transmission loss and sound absorption coefficient of the 3-D printed double-leaf MPPs with honeycomb cavities were studied. According to the established theory, MPPs work …
Laser Assisted Manufacturing: A Comparison Of Mechanical Properties Between Lam And Conventional Manufacturing Techniques, William Blakeslee, Neil S. Bailey, Kyung-Min Hong, Shunyu Liu, Yung C. Shin
Laser Assisted Manufacturing: A Comparison Of Mechanical Properties Between Lam And Conventional Manufacturing Techniques, William Blakeslee, Neil S. Bailey, Kyung-Min Hong, Shunyu Liu, Yung C. Shin
The Summer Undergraduate Research Fellowship (SURF) Symposium
Laser assisted manufacturing methods, such as direct metal deposition (DMD) and laser beam welding (LBW), are promising methods because of their higher precision and greater productivity when compared to traditional manufacturing methods. Because these methods are relatively new, the mechanical properties of samples produced by laser assisted manufacturing are not well understood. In this study the mechanical properties of samples produced by laser assisted manufacturing methods are analyzed and compared with data obtained from traditional manufacturing methods. The DMD process used Fe-TiC and Ti-TiC metal matrix composites, while LBW used AISI 304 stainless steel. The results vary widely with the …
A Fast Model For The Simulation Of External Gear Pumps, Zechao Lu, Xinran Zhao, Andrea Vacca
A Fast Model For The Simulation Of External Gear Pumps, Zechao Lu, Xinran Zhao, Andrea Vacca
The Summer Undergraduate Research Fellowship (SURF) Symposium
External gear pump is an important category of positive displacement fluid machines used to perform the mechanical–hydraulic energy conversions in many fluid power applications. An efficient numerical simulation program is needed to simulate the system in order to provide a direction for design purpose. The model consists of a lumped parameter fluid dynamic model and a model that simulates the radial micro-motions of the gear’s axes of rotation. The system consists of a set of ordinary differential equations related to the conservation on mass of the internal control volumes of the pump, which are given by the tooth space volumes …
Relative Contributions Of Inelastic Phonon Scattering And Elastic Phonon Scattering To Thermal Boundary Conductance Across Solid Interfaces, Mengxi Zhao, Zexi Lu, Xiulin Ruan
Relative Contributions Of Inelastic Phonon Scattering And Elastic Phonon Scattering To Thermal Boundary Conductance Across Solid Interfaces, Mengxi Zhao, Zexi Lu, Xiulin Ruan
The Summer Undergraduate Research Fellowship (SURF) Symposium
The knowledge of inelastic phonon scattering is crucial for the understanding of thermal boundary conductance across solid interfaces. Several traditional theoretical models such as the acoustic mismatch model (AMM) and the diffuse mismatch model (DMM) assume that the elastic phonon scattering drives the thermal transport across the interface. But there are experiments indicating that the inelastic phonon scattering plays an important part in the interfacial thermal energy conduction as well. We use nonequilibrium molecular dynamics (NEMD) to predict the inelastic phonon conductance across Cu/Si interface. Temperature distribution across Cu/Si interface has been obtained from the simulation results, and a temperature …