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Articles 121 - 150 of 593
Full-Text Articles in Mechanical Engineering
Robust Impedance Control Of A Four Degree Of Freedom Exercise Robot, Santino Joseph Bianco
Robust Impedance Control Of A Four Degree Of Freedom Exercise Robot, Santino Joseph Bianco
ETD Archive
The CSU 4OptimX exercise robot provides a platform for future research into advanced exercise and rehabilitation. The robot and its control system will autonomously modify reference trajectories and impedances on the basis of an optimization criterion and physiological feedback. To achieve this goal, a robust impedance control system with trajectory tracking must be implemented as the foundational control scheme. Two control laws will be compared, sliding mode and H-infinity control. The above robust control laws are combined with underlying impedance control laws to overcome uncertain plant model parameters and disturbance anomalies affecting the input signal. The sliding mode control law …
Design And Manipulation Of A Power-Generating System With High-Temperature Fuel Cells For Hypersonic Applications, Jack Randolph Chalker
Design And Manipulation Of A Power-Generating System With High-Temperature Fuel Cells For Hypersonic Applications, Jack Randolph Chalker
Browse all Theses and Dissertations
Current hypersonic vehicles tend to be incapable of producing onboard power with traditional generators due to their use of supersonic combusting ramjets (scramjets). Because of this, they seek additional energy sources for supporting advanced electronics or other auxiliary power-dependent devices while requiring elaborate thermal management systems to combat temperatures exceeding 700ºC. The incorporation of Solid Oxide Fuel Cell (SOFCs) stacks is an efficient solution, capable of generating large quantities of power through the use of natural fuel sources at high temperatures. Developments in this thesis include the design, construction, and support of a system operating at hypersonic-environment conditions with a …
The Characterization And Fatigue Life Impact From Surface Roughness On Structurally Relevant Features Produced Using Additive Manufacturing, Eric-Paul Daniel Tatman
The Characterization And Fatigue Life Impact From Surface Roughness On Structurally Relevant Features Produced Using Additive Manufacturing, Eric-Paul Daniel Tatman
Browse all Theses and Dissertations
Additive manufacturing (AM) produces rough surfaces that are detrimental to the mechanical performance of the part. In this work, downward-facing surfaces were fabricated in alloy 718 using laser powder bed fusion and investigated with surface characterization and axial fatigue testing. Coupons with downward-facing surfaces at 45°, 60°, and 75° and flat axial fatigue bars with as-built and machined holes were built. Both specimens were fabricated with three levels of downskin laser power and the coupons with three levels of downskin laser speed. Surface characterization showed roughness increased as the downward-facing angle decreased. Fatigue testing with digital image correlation showed localized …
Proceedings Of The 19th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee
Proceedings Of The 19th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. i-xii
Section 1: Materials & Design, Ectc Coordinating Committee
Section 1: Materials & Design, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 1-21
Section 2: Materials & Testing, Ectc Coordinating Committee
Section 2: Materials & Testing, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 22-41
Section 3: Robotics & Computing, Ectc Coordinating Committee
Section 3: Robotics & Computing, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 42-75
Section 4: Sustainability & Design, Ectc Coordinating Committee
Section 4: Sustainability & Design, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 76-95
Section 6: Thermal Sciences, Ectc Coordinating Committee
Section 6: Thermal Sciences, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 113-145
Section 5: Materials, Ectc Coordinating Committee
Section 5: Materials, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 96-112
Proceedings Of The 19th Annual Early Career Technical Conference (Complete Issue), Ectc Coordinating Committee
Proceedings Of The 19th Annual Early Career Technical Conference (Complete Issue), Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama
Optimization Of Mechanical Properties In Magnesium Zinc Alloys, Christopher Hale, Zhigang Xu, Honglin Zhang, Sergey Yarmolenko, Jagannathan Sankar
Optimization Of Mechanical Properties In Magnesium Zinc Alloys, Christopher Hale, Zhigang Xu, Honglin Zhang, Sergey Yarmolenko, Jagannathan Sankar
Early Career Technical Journal (ECTJ)
Section 1: Materials & Design; pp. 3-7
High Strain-Rate Sensitivity And Energy Absorption Of Duroprotect, A Fiber-Reinforced Ballistics Composite, Ivy Turner, Rowan Baird, Sofia Serafin, Birendra Chaudhary, Jose Torrado, Damian Stoddard
High Strain-Rate Sensitivity And Energy Absorption Of Duroprotect, A Fiber-Reinforced Ballistics Composite, Ivy Turner, Rowan Baird, Sofia Serafin, Birendra Chaudhary, Jose Torrado, Damian Stoddard
Early Career Technical Journal (ECTJ)
Section 1: Materials & Design; pp. 8-14
Section 7: Numerical Methods, Ectc Coordinating Committee
Section 7: Numerical Methods, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 19th Annual Early Career Technical Conference, November 2-3, 2019. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 146-178
On The Design And Development Of A Monolithic Compliant Gripper And Serial Closed Loop Chain Mechanism, Martin Garcia, Ayse Tekes
On The Design And Development Of A Monolithic Compliant Gripper And Serial Closed Loop Chain Mechanism, Martin Garcia, Ayse Tekes
Early Career Technical Journal (ECTJ)
Section 1: Materials & Design; pp. 16-21
Machine Design Companion Using Matlab, Paul Pena, Mir Atiqullah
Machine Design Companion Using Matlab, Paul Pena, Mir Atiqullah
Early Career Technical Journal (ECTJ)
Section 1: Materials & Design; p. 15
Study Of The Shift In Material Properties Due To Structural Damage In Bio-Composites, Gavin Stockstill, Maharshi J. Dave, Tejas Pandya, Jason Street
Study Of The Shift In Material Properties Due To Structural Damage In Bio-Composites, Gavin Stockstill, Maharshi J. Dave, Tejas Pandya, Jason Street
Early Career Technical Journal (ECTJ)
Section 2: Materials & Testing; pp. 24-26
Dynamic Response Of Porous Metallic And Polymeric Foams For Enhancing Energy Absorption Under High Strain-Rates, Suman Babu Ukyam, Damian Stoddard, P Raju Mantena
Dynamic Response Of Porous Metallic And Polymeric Foams For Enhancing Energy Absorption Under High Strain-Rates, Suman Babu Ukyam, Damian Stoddard, P Raju Mantena
Early Career Technical Journal (ECTJ)
Section 2: Materials & Testing; p. 33
Dynamic Compressive Behavior And Energy Absorption Of Ethylene Polyurethane Diene Monomer Foam Using Split Hopkinson Pressure Bar Technique, Rowan E. Baird, Mason Tudor, Damian Stoddard
Dynamic Compressive Behavior And Energy Absorption Of Ethylene Polyurethane Diene Monomer Foam Using Split Hopkinson Pressure Bar Technique, Rowan E. Baird, Mason Tudor, Damian Stoddard
Early Career Technical Journal (ECTJ)
Section 2: Materials & Testing; pp. 27-32
Comparative Analysis And Dynamic Response Of Garolites Under Temperature Spectrum Using Low Velocity Impact Test, Birendra Chaudhary, Suman Babu Ukyam, Damian Stoddard
Comparative Analysis And Dynamic Response Of Garolites Under Temperature Spectrum Using Low Velocity Impact Test, Birendra Chaudhary, Suman Babu Ukyam, Damian Stoddard
Early Career Technical Journal (ECTJ)
Section 2: Materials & Testing; pp. 34-41
Autonomous Vehicle Simulation Using Open Source Software Carla, Emily Barbour, Kevin Mcfall
Autonomous Vehicle Simulation Using Open Source Software Carla, Emily Barbour, Kevin Mcfall
Early Career Technical Journal (ECTJ)
Section 3: Robotics & Computing; pp. 50-57
Comparison Of Dense Descriptors For Image Enhancement, Mohsime Taarji, Arie Nakhmani
Comparison Of Dense Descriptors For Image Enhancement, Mohsime Taarji, Arie Nakhmani
Early Career Technical Journal (ECTJ)
Section 3: Robotics & Computing; pp. 44-49
Development Of A Pre-Processing Tool For The 3d Eulerian Code Aleas, Yasir A. Alfawzan, Kenneth Walls
Development Of A Pre-Processing Tool For The 3d Eulerian Code Aleas, Yasir A. Alfawzan, Kenneth Walls
Early Career Technical Journal (ECTJ)
Section 3: Robotics & Computing; pp. 62-67
Real-Time Virtual Remotely Operated Vehicle, Tyler Gragg, Kevin Mcfall
Real-Time Virtual Remotely Operated Vehicle, Tyler Gragg, Kevin Mcfall
Early Career Technical Journal (ECTJ)
Section 3: Robotics & Computing; pp. 58-61
Developing Semi-Autonomous Flight Control Software For A Meta Aircraft Of Two Fixed Wing Aircraft With A Raspberry Pi + Navio2 Flight Controller, Maxwell J. Cobar, Carlos J. Montalvo
Developing Semi-Autonomous Flight Control Software For A Meta Aircraft Of Two Fixed Wing Aircraft With A Raspberry Pi + Navio2 Flight Controller, Maxwell J. Cobar, Carlos J. Montalvo
Early Career Technical Journal (ECTJ)
Section 3: Robotics & Computing; pp. 68-75
Exploring Methodology For Development Of Sustainable Construction Management Processes In Puerto Rico, Magdelena Krstanoski, Rafael Melendez
Exploring Methodology For Development Of Sustainable Construction Management Processes In Puerto Rico, Magdelena Krstanoski, Rafael Melendez
Early Career Technical Journal (ECTJ)
Section 4: Sustainability & Design; pp. 78-83
Design Of A Novel Compliant Knee Joint And Swimming Robot: Preliminary Results, Niko Giannakakos, Joshua Hooper, Andy Houghton, Ayo Ajayi, Mason Mccun, Ayse Tekes
Design Of A Novel Compliant Knee Joint And Swimming Robot: Preliminary Results, Niko Giannakakos, Joshua Hooper, Andy Houghton, Ayo Ajayi, Mason Mccun, Ayse Tekes
Early Career Technical Journal (ECTJ)
Section 4: Sustainability & Design; pp. 84-87
Structural Design Of A New Crash Cushion, Kent Walls, Kevin Schrum
Structural Design Of A New Crash Cushion, Kent Walls, Kevin Schrum
Early Career Technical Journal (ECTJ)
Section 4: Sustainability & Design; pp. 88-95
Flexural Performance Of Microcrystalline Cellulose Based Wood Composite Under Four- Point Bending, Maharshi Dave, Tejas Pandya, Jason Street
Flexural Performance Of Microcrystalline Cellulose Based Wood Composite Under Four- Point Bending, Maharshi Dave, Tejas Pandya, Jason Street
Early Career Technical Journal (ECTJ)
Section 5: Materials; pp. 98-101
Macroscopic Evolution Of Corrosion In An Aluminum Alloy, Tete Tevi, Ramana M. Pidaparti
Macroscopic Evolution Of Corrosion In An Aluminum Alloy, Tete Tevi, Ramana M. Pidaparti
Early Career Technical Journal (ECTJ)
Section 5: Materials; pp. 102-105