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Raul G. Longoria
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Proceedings Papers

Design, Development, and Testing of a Smart Hand Tool: Achieving Work Task Recognition Using Synthetic Data and Edge Intelligence

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Rachel New, Carlos D. Salazar, Jose Bendaña, Sundar Sripada V. S., Sandeep Chinchali, Kenneth R. Fleischmann, Raul G. Longoria
Proc. ASME. IDETC-CIE2024, Volume 2A: 44th Computers and Information in Engineering Conference (CIE), V02AT02A026, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-142360
https://doi.org/10.1115/DETC2024-142360
View Paper titled, Design, Development, and Testing of a Smart Hand Tool: Achieving Work Task Recognition Using Synthetic Data and Edge Intelligence
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Topics: Design, Hand tools, Machine learning, Project tasks, Testing
Proceedings Papers

Comparative Analysis of Real-Time and Simulated Monitoring Techniques for MIG Welding

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Carlos D. Salazar, Raul G. Longoria
Proc. ASME. IDETC-CIE2024, Volume 2B: 44th Computers and Information in Engineering Conference (CIE), V02BT02A036, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-145652
https://doi.org/10.1115/DETC2024-145652
View Paper titled, Comparative Analysis of Real-Time and Simulated Monitoring Techniques for MIG Welding
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Topics: Augmented reality, Displacement, Feedback, Gas metal arc welding, Geometry, Quality control, Sensors, Welded joints, Welding
Journal Articles

Parameter Identification of Cardiovascular System Model Used for Left Ventricular Assist Device Algorithms

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Suraj R. Pawar, Ethan S. Rapp, Jeffrey R. Gohean, Raul G. Longoria
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Publisher: ASME
Article Type: Research-Article
ASME J of Medical Diagnostics. February 2022, 5(1): 011006.
Paper No: JESMDT-21-1010
https://doi.org/10.1115/1.4053065
Published Online: January 12, 2022
View Articletitled, Parameter Identification of Cardiovascular System Model Used for Left Ventricular Assist Device Algorithms
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Topics: Algorithms, Cardiovascular system, Signals, Ventricular assist devices, Pressure, Simulation, Physiology, Design, Flow (Dynamics)
Proceedings Papers

Challenges in Controlling Active Suspensions for High-Speed Off-Road Vehicles

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Keyanoush Efatpenah, Joseph H. Beno, Steven P. Nichols, Raul G. Longoria
Proc. ASME. IMECE2000, Advanced Vehicle Technologies, 181-186, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1221
https://doi.org/10.1115/IMECE2000-1221
View Paper titled, Challenges in Controlling Active Suspensions for High-Speed Off-Road Vehicles
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Topics: Off-road vehicles, Suspension systems, Simulation, Damping, Roads, Control algorithms, Control equipment, Displacement
Proceedings Papers

A Simulation-Based Synthesis Method for Engineering Systems That Contain Active Elements

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Thomas J. Connolly, Raul G. Longoria
Proc. ASME. IMECE2000, Dynamic Systems and Control: Volume 2, 831-838, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-2382
https://doi.org/10.1115/IMECE2000-2382
View Paper titled, A Simulation-Based Synthesis Method for Engineering Systems That Contain Active Elements
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Topics: Engineering systems and industry applications, Simulation, Design, Actuators, Complex systems, Computer simulation, Cycles, Flow (Dynamics), Modeling, Retrofitting
Journal Articles

A Respiratory Mechanics Model of the Human Lung for Positive Pressure Breathing at High Altitude

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Mark M. Koeroghlian, Steven P. Nichols, Raul G. Longoria
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. October 2020, 142(10): 101004.
Paper No: DS-20-1020
https://doi.org/10.1115/1.4047220
Published Online: June 8, 2020
View Articletitled, A Respiratory Mechanics Model of the Human Lung for Positive Pressure Breathing at High Altitude
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Topics: Flow (Dynamics), Lung, Pressure, Simulation
Journal Articles

Estimation of Systemic Vascular Resistance Using Built-In Sensing From an Implanted Left Ventricular Assist Device

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Ethan S. Rapp, Suraj R. Pawar, Jeffrey R. Gohean, Erik R. Larson, Richard W. Smalling, Raul G. Longoria
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Publisher: ASME
Article Type: Research-Article
ASME J of Medical Diagnostics. November 2019, 2(4): 041008.
Paper No: JESMDT-19-1014
https://doi.org/10.1115/1.4045204
Published Online: November 14, 2019
View Articletitled, Estimation of Systemic Vascular Resistance Using Built-In Sensing From an Implanted Left Ventricular Assist Device
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Topics: Algorithms, Cardiovascular system, Flow (Dynamics), Pressure, Pumps, Testing, Ventricular assist devices, Simulation, Kalman filters, Heart failure
Journal Articles

Mission Feasibility Assessment for Mobile Robotic Systems Operating in Stochastic Environments

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Jonathan R. LeSage, Raul G. Longoria
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. March 2015, 137(3): 031009.
Paper No: DS-13-1523
https://doi.org/10.1115/1.4028035
Published Online: October 21, 2014
View Articletitled, Mission Feasibility Assessment for Mobile Robotic Systems Operating in Stochastic Environments
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Topics: Batteries, Robotics, Probability, Vehicles
Proceedings Papers

Two-Port Synthesis for Retrofit Design of Electric Ship Control Surface Actuation Systems

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Jonathan R. LeSage, William Shutt, Raul G. Longoria
Proc. ASME. DSCC2010, ASME 2010 Dynamic Systems and Control Conference, Volume 1, 29-36, September 12–15, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2010-4145
https://doi.org/10.1115/DSCC2010-4145
View Paper titled, Two-Port Synthesis for Retrofit Design of Electric Ship Control Surface Actuation Systems
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Topics: Design, Ships, Actuators, Circuits, Energy storage, Underwater vehicles
Proceedings Papers

Estimating Traction Coefficients of Friction for Small-Scale Robotic Tracked Vehicles

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Tehmoor M. Dar, Raul G. Longoria
Proc. ASME. DSCC2010, ASME 2010 Dynamic Systems and Control Conference, Volume 2, 157-164, September 12–15, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2010-4228
https://doi.org/10.1115/DSCC2010-4228
View Paper titled, Estimating Traction Coefficients of Friction for Small-Scale Robotic Tracked Vehicles
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Topics: Friction, Robotics, Tracked vehicles, Traction, Testing, Trajectories (Physics), Dynamic models, Kalman filters, Kinematics, Noise (Sound)
Proceedings Papers

Robust Design of Flexure Based Nano Precision Compliant Mechanisms With Application to Nano Imprint Lithography

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Chinmaya B. Patil, S. V. Sreenivasan, Raul G. Longoria
Proc. ASME. IDETC-CIE2008, Volume 4: 20th International Conference on Design Theory and Methodology; Second International Conference on Micro- and Nanosystems, 701-711, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-50114
https://doi.org/10.1115/DETC2008-50114
View Paper titled, Robust Design of Flexure Based Nano Precision Compliant Mechanisms With Application to Nano Imprint Lithography
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Topics: Bending (Stress), Compliant mechanisms, Design, Lithography, Flexure mechanisms, Errors, Machining, Optimization, Calibration, Screws
Proceedings Papers

Analytical and Experimental Characterization of Parasitic Motion in Flexure-Based Selectively Compliant Precision Mechanisms

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Chinmaya B. Patil, S. V. Sreenivasan, Raul G. Longoria
Proc. ASME. IDETC-CIE2008, Volume 2: 32nd Mechanisms and Robotics Conference, Parts A and B, 393-404, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-50111
https://doi.org/10.1115/DETC2008-50111
View Paper titled, Analytical and Experimental Characterization of Parasitic Motion in Flexure-Based Selectively Compliant Precision Mechanisms
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Topics: Bending (Stress), Experimental characterization, Flexure mechanisms, Screws, Machining, Compliant mechanisms, Rotation, Degrees of freedom, Errors, Kinematics
Proceedings Papers

Analytical Representation of Nano-Scale Parasitic Motion in Flexure-Based Selectively Compliant Mechanisms

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Chinmaya B. Patil, S. V. Sreenivasan, Raul G. Longoria
Proc. ASME. IDETC-CIE2007, Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B, 775-784, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35114
https://doi.org/10.1115/DETC2007-35114
View Paper titled, Analytical Representation of Nano-Scale Parasitic Motion in Flexure-Based Selectively Compliant Mechanisms
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Topics: Bending (Stress), Compliant mechanisms, Nanoscale phenomena, Errors, Manufacturing, Modeling, Calibration, Design, Kinematics, Screws
Journal Articles

An Approach for Actuation Specification and Synthesis of Dynamic Systems

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Thomas J. Connolly, Raul G. Longoria
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. May 2009, 131(3): 031012.
https://doi.org/10.1115/1.3089558
Published Online: March 23, 2009
View Articletitled, An Approach for Actuation Specification and Synthesis of Dynamic Systems
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Topics: Actuators, Design
Proceedings Papers

Variable Fidelity Modeling of Vehicle Ride Dynamics Using an Element Activity Metric

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Javier A. Kypuros, Raul G. Longoria
Proc. ASME. IMECE2002, Dynamic Systems and Control, 525-534, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-39288
https://doi.org/10.1115/IMECE2002-39288
View Paper titled, Variable Fidelity Modeling of Vehicle Ride Dynamics Using an Element Activity Metric
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Topics: Dynamics (Mechanics), Modeling, Vehicles, Simulation, Switches
Journal Articles

Model Synthesis for Design of Switched Systems Using a Variable Structure System Formulation

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Javier A. Kypuros, Raul G. Longoria
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. December 2003, 125(4): 618–629.
https://doi.org/10.1115/1.1636774
Published Online: January 29, 2004
View Articletitled, Model Synthesis for Design of Switched Systems Using a Variable Structure System Formulation
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Topics: Design, Hydraulic pumps, Pumps, Switches, Variable structure systems, Simulation, String, Valves
Journal Articles

Signal Analysis Using Karhunen-Loe`ve Transformation: Application to Hydrodynamic Forces

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Irem Y. Tumer, Research Scientist,, Raul G. Longoria, Associate Professor, Kristin L. Wood, Associate Professor
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2000, 122(3): 208–213.
https://doi.org/10.1115/1.1286923
Published Online: February 7, 2000
View Articletitled, Signal Analysis Using Karhunen-Loe`ve Transformation: Application to Hydrodynamic Forces
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Topics: Eigenvalues, Flow (Dynamics), Fluid-dynamic forces, Signals, Cylinders