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Journal Articles

Determining Probability of Importance of Features in a Sketch

Ricardo Cruz-Lozano, Fisseha M. Alemayehu, Stephen Ekwaro-Osire, Haileyesus B. Endeshaw
Journal: ASCE-ASME J Risk and Uncert in Engrg Sys Part B Mech Engrg
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2017, 3(4): 041003.
Paper No: RISK-16-1051
DOI: https://doi.org/10.1115/1.4035867
Published Online: June 13, 2017
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Topics: Probability, Uncertainty, Bicycles, Shapes
Proceedings Papers

A Probabilistic Model-Based Prognostics Using Meshfree Modeling: A Case Study on Fatigue Life of a Cantilever Beam

Haileyesus B. Endeshaw, Fisseha M. Alemayehu, Stephen Ekwaro-Osire, João Paulo Dias
Proc. ASME. IMECE2016, Volume 4B: Dynamics, Vibration, and Control, V04BT05A047, November 11–17, 2016
Paper No: IMECE2016-67936
DOI: https://doi.org/10.1115/IMECE2016-67936
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Topics: Cantilever beams, Fatigue life, Modeling, Uncertainty, Reliability, Fatigue, Monte Carlo methods, Decision making, Density, Interpolation
Proceedings Papers

Probabilistic Approach to Determine the Efficiency of Ocean Wave Energy Conversion Systems

Stephen Ekwaro-Osire, Fisseha M. Alemayehu, Jamie Chapman, Ozhan Gecgel, Shweta Dabetwar, João Paulo Dias, Haileyesus B. Endeshaw
Proc. ASME. IMECE2016, Volume 6A: Energy, V06AT08A032, November 11–17, 2016
Paper No: IMECE2016-67942
DOI: https://doi.org/10.1115/IMECE2016-67942
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Topics: Wave energy, Reliability, Uncertainty, Manufacturing, Probability, Sensitivity analysis, Accounting, Air flow, Computer software, Failure
Proceedings Papers

Determining Probability of Importance of Features in a Sketch

Ricardo Cruz-Lozano, Fisseha M. Alemayehu, Stephen Ekwaro-Osire, Haileyesus Endeshaw
Proc. ASME. IMECE2015, Volume 11: Systems, Design, and Complexity, V011T14A027, November 13–19, 2015
Paper No: IMECE2015-52807
DOI: https://doi.org/10.1115/IMECE2015-52807
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Topics: Probability, Uncertainty, Design, Engineers, Entropy, Object recognition
Proceedings Papers

Probabilistic Analysis of Continuously Variable Transmission to Increase Reliability

Nkama E. Nkama, Fisseha M. Alemayehu, Haileyesus B. Endeshaw, Stephen Ekwaro-Osire, Duc Pham
Proc. ASME. IMECE2015, Volume 6A: Energy, V06AT07A061, November 13–19, 2015
Paper No: IMECE2015-52803
DOI: https://doi.org/10.1115/IMECE2015-52803
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Topics: Reliability, Torque, Energy generation, Mechanical drives, Probability, Renewable energy, Wind energy, Automotive industry, Dynamic analysis, Failure
Journal Articles

Probabilistic Performance of Helical Compound Planetary System in Wind Turbine

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Journal: Journal of Computational and Nonlinear Dynamics
Article Type: Research-Article
J. Comput. Nonlinear Dynam. July 2015, 10(4): 041003.
Paper No: CND-13-1275
DOI: https://doi.org/10.1115/1.4027921
Published Online: July 1, 2015
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Topics: Bending (Stress), Design, Gears, Reliability, Uncertainty, Wind turbines, Stress, Rotors, Torque, Gear teeth
Proceedings Papers

Low Frequency Vibration Consideration in Tool-Path Computation of Two-Link Serial Manipulator for Improved Accuracy

Denis Juschanin, Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Proc. ASME. IMECE2014, Volume 2A: Advanced Manufacturing, V02AT02A055, November 14–20, 2014
Paper No: IMECE2014-39400
DOI: https://doi.org/10.1115/IMECE2014-39400
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Topics: Computation, Manipulators, Vibration, Chatter, Machining, Robots, Cutting, Deburring, Grinding, Polishing
Journal Articles

Loading and Design Parameter Uncertainty in the Dynamics and Performance of High-Speed-Parallel-Helical-Stage of a Wind Turbine Gearbox

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Journal: Journal of Mechanical Design
Article Type: Research-Article
J. Mech. Des. September 2014, 136(9): 091002.
Paper No: MD-13-1443
DOI: https://doi.org/10.1115/1.4027496
Published Online: June 11, 2014
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Topics: Bending (Stress), Compressive stress, Design, Gears, Reliability, Manufacturing, Uncertainty, Stress
Proceedings Papers

Loading and Design Parameter Uncertainty in the Dynamics and Performance of High-Speed-Parallel-Helical Stage of a Wind Turbine Gearbox

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Proc. ASME. IDETC-CIE2013, Volume 5: 25th International Conference on Design Theory and Methodology; ASME 2013 Power Transmission and Gearing Conference, V005T11A047, August 4–7, 2013
Paper No: DETC2013-13638
DOI: https://doi.org/10.1115/DETC2013-13638
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Topics: Design, Dynamics (Mechanics), Mechanical drives, Uncertainty, Wind turbines, Failure, Manufacturing, Probability, Reliability, Dimensions
Proceedings Papers

Uncertainty Considerations in the Dynamics of Gear-Pair

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Proc. ASME. IMECE2012, Volume 4: Dynamics, Control and Uncertainty, Parts A and B, 1123-1132, November 9–15, 2012
Paper No: IMECE2012-89751
DOI: https://doi.org/10.1115/IMECE2012-89751
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Topics: Dynamics (Mechanics), Gears, Uncertainty, Design, Computer software, Dimensions, Engineering design processes, Errors, Failure, Manufacturing
Journal Articles

Uncertainty Considerations in the Dynamic Loading and Failure of Spur Gear Pairs

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Journal: Journal of Mechanical Design
Article Type: Technical Briefs
J. Mech. Des. August 2013, 135(8): 084501.
Paper No: MD-12-1439
DOI: https://doi.org/10.1115/1.4023870
Published Online: July 20, 2013
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Topics: Failure, Fatigue life, Gears, Probability, Reliability, Stress, Uncertainty, Bending (Stress), Spur gears, Design
Proceedings Papers

Probabilistic Multibody Modeling of Gearboxes for Wind Turbines

Fisseha M. Alemayehu, Stephen Ekwaro-Osire
Proc. ASME. IMECE2011, Volume 7: Dynamic Systems and Control; Mechatronics and Intelligent Machines, Parts A and B, 793-804, November 11–17, 2011
Paper No: IMECE2011-64639
DOI: https://doi.org/10.1115/IMECE2011-64639
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Topics: Modeling, Wind turbines, Design, Failure, Reliability, Uncertainty, Wind, Downtime, Dynamic modeling, Mechanical drives