Stephen Boedo
Professor
Department of Mechanical Engineering
Kate Gleason College of Engineering
585-475-5214
Office Location
Stephen Boedo
Professor
Department of Mechanical Engineering
Kate Gleason College of Engineering
Education
BA, State University of New York at Buffalo; MS, Ph.D., Cornell University
Bio
Dr. Boedo's primary research area focuses on the development of new computational methods and new design guidelines for dynamically loaded conformal fluid-film bearing systems. He currently studies the interaction of thin lubricant films with structurally compliant surfaces, including effects of geometric irregularity, lubricant supply, and lubricant cavitation on predicted mechanical system performance. These analytical methods have proven useful to the understanding of engine and compressor bearings, the nonlinear behavior of fluid-film rotors, and the lubrication of artificial human joints.
Experimental and numerical studies pertaining to the tribological characteristics of MEMS bearing systems and spherical bearings for optical polishing applications have also been part of Dr. Boedo's research agenda.
Dr. Boedo is the course coordinator for advanced strength of materials, mechanics of solids, finite elements, and lubrication. Dr. Boedo is currently on the editorial board of the IMechE Journal of Engineering Science. Dr. Boedo has also served on occasion as Visiting Professor at Cornell University, and he has been Associate Editor of the ASME Journal of Tribology.
Select Scholarship
Journal Paper
Boedo, S. and V.N. Santhanam. "Optimal Shape Design of Spherical Squeeze Film Bearings using Genetic Algorithms." Tribology International 190. (2023): 109058. Print.
Boedo, S. "A Computationally Efficient, Mass Conserving Generalized Short Bearing Formulation for Dynamically Loaded Journal Bearings." ASME Journal of Tribology 144. (2022): p. 051802. Print.
Boedo, S. and T. M. Blais. "Revisiting Mobility-Based Predictions of Cyclic Minimum Film Thickness in Big-End Connecting Rod Bearings." SAE International Journal of Engines 15. (2022): 263-281. Print.
Boedo, S. "Mass Conserving Analysis of Steadily Loaded, Oscillating Partial Arc Journal Bearings Using a Generalized Warner Bearing Formulation." ASME Journal of Tribology 144. (2022): 101801. Print.
Boedo, S. "Mass Conserving Analysis of Steadily Loaded, Oscillating Elliptical Journal Bearings." Tribology International 176. (2022): 107921. Print.
Boedo, S. "Concise Data Set Formulation for Dynamically Loaded Conformal Elastohydrodynamic Lubrication Problems." ASME Journal of Tribology 143. (2021): 61802. Print.
Boedo, S. "Singularity Functions Revisited: Clarifications and Extensions for Construction of Shear-Moment Diagrams in Beams." International Journal of Mechanical Engineering Education 48. (2020): 351-370. Print.
Booker, J.F. and S. Boedo. "Nodal Unsteady Inverse EHL: Axisymmetric Normal Approach." ASME Journal of Tribology 140. (2018): 41501. Print.
Boedo, S. and J.F. Booker. "Erratum: Warner-Sommerfeld Impedance and Mobility Maps." ASME Journal of Tribology 140. (2018): 17001. Print.
Boedo, S. and J.F. Booker. "Discussion of “A General Model for Liquid and Gas Lubrication, Including Cavitation” by N. Brunetière." ASME Journal of Tribology 140. (2018): 55501. Print.
Booker, J.F. and S. Boedo. "Closure of the Paper “Nodal Unsteady Inverse EHL: Axisymmetric Normal Approach,”." ASME Journal of Tribology 140. (2018): 66001. Print.
Boedo, S. and S.A. Coots. "Wear Characteristics of Conventional and Squeeze-Film Artificial Hip Joints." ASME Journal of Tribology 139. 3 (2017): 1-10. Print.
Boedo, S. "Formation of Dynamic Reconfigurable Electric Field Gradients in Thin Lubricant Films through Transient Elastohydrodynamic Squeeze Film Action." Tribology International 116. (2017): 329-337. Print.
Boedo, S. and D.P. Anderson. "Oscillating Journal Bearings under Steady Load: A Numerical Study of Limiting Cases." ASME Journal of Tribology 138. (2016): p. 014502. Print.
Boedo, S. and J.F. Booker. "Warner-Sommerfeld Impedance and Mobility Maps." ASME Journal of Tribology 138. (2016): p. 034502. Print.
Holzenkamp, M., et al. "Seeded Fault Testing and Classification of Dynamically-Loaded Floating Ring Compressor Bearings." ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems Part B: Mechanical Engineering 2. (2016): p. 021003. Print.
Boedo, S. "Transient Dynamics of the Conformal Elastohydrodynamic Squeeze Film Problem." ASME Journal of Tribology 137. (2015): 041506 (12 pp). Print.
Demiri, S., S. Boedo, and L.S. Holsen. "Wear Characteristics of Large Aspect Ratio Silicon Microbearing Systems." Wear 312. (2014): 58-69. Print.
Boedo, S. and J.F. Booker. "A Novel Elastic Squeeze Film Total Hip Replacement." ASME Journal of Tribology 136. (2014): 11101. Print.
Boedo, S. "A Hybrid Mobility Solution Approach for Dynamically Loaded Misaligned Journal Bearings." ASME Journal of Tribology 135. (2013): 24501. Print.
Boedo, S. "A Corrected Displacement Solution to Linearly Varying Surface Pressure Over a Triangular Region on the Elastic Half Space." Tribology International 60. (2013): 116-118. Print.
Boedo, S. "Mass Conserving Cavitation Effects in Squeeze-Film Journal Bearings Subjected to Sinusoidal Loads." STLE Tribology Transactions 54. (2011): 21-35. Print.
Boedo, S. and W.J. Grande. "Structurally Compliant Microbearing Devices and Methods Thereof." U.S. Patent 8,037,777. (2011): 1-13. Print.
Published Conference Proceedings
Boedo, S. "Singularity Functions Revisited: Clarifications and Extensions for the Deflection of Beams of Non-Uniform Flexural Rigidity under Arbitrary Loading." Proceedings of the 2020 ASEE St. Lawrence Section Annual Conference. Ed. S. Gupta. Rochester, NY: n.p., 2020. Web.
Coots, S.A. and S. Boedo. "Wear Assessment of a Novel Squeeze-Film Artificial Hip Joint." Proceedings of the 2014 Effective Access Technology Conference, Rochester, NY, June 17-18, 2014. Ed. RIT. Rochester, NY: n.p., Print.
Kasemer, M., E.A. DeBartolo, and S. Boedo. "Laboratory and Classroom Study of Low Cycle Fatigue." Proceedings of the ASEE 2013 Annual Conference and Exposition, June 23-26, 2013, Atlanta, GA. Ed. ASEE. Washington, DC: n.p., Print.
Holzenkamp, M., et al. "An Experimentally Validated Model for Reciprocating Compressor Main Bearings for Applications in Health Monitoring." Proceedings of the 2013 ASME Dynamic Systems and Control Conference, October 21-23, 2013, Stanford University, Palo Alto, CA. Ed. ASME. New York, NY: n.p., Print.
Demiri, S., S. Boedo, and L.S. Holsen. "Wear Assessment of Large Aspect Ratio Silicon Microbearing Systems." Proceedings of the 2013 ASME International Mechanical Engineering Congress and Exposition, November 13-21, 2013, San Diego, CA, Paper IMECE2013-64420. Ed. ASME. New York, NY: n.p., Print.
Boedo, S., J.F. Booker, and S.A. Coots. "Swing Phase Lubrication Analysis of a Novel Artificial Hip Joint." Proceedings of the 2013 ASME International Mechanical Engineering Congress and Exposition, November 13-21, 2013, San Diego, CA, Paper IMECE2013-64356. Ed. ASME. New York, NY: n.p., Print.
Boedo, S. "A Hybrid Mobility Solution Method for Dynamically Loaded Misaligned Journal Bearings." Proceedings of the ASME/STLE 2012 International Joint Tribology Conference, Denver, CO, October 8-10, 2012, Paper IJTC2012-61225. Ed. ASME. New York, NY: n.p., 2012. Print.
Journal Editor
Boedo, S., ed. ASME Journal of Tribology. New York: American Society of Mechanical Engineers, 2018. Print.
Boedo, S., ed. ASME Journal of Tribology. New York: American Society of Mechanical Engineers, 2017. Print.
Full Patent
Boedo, S. and J.F. Booker. "Artificial Hip Joint Replacement System." U.S. Patent 9,642,709. 9 May 2017.
Invited Keynote/Presentation
Coots, S.A. and S. Boedo. "Wear Assessment of a Novel Squeeze-Film Artificial Hip Joint." 2014 Effective Access Technology Conference. RIT. Rochester, NY. 17 Jun. 2014. Conference Presentation.
Boedo, S. and J.F. Booker. "A Novel Elastic Squeeze Film Total Hip Replacement." University Technology Showcase, Center for Emerging and Innovative Sciences (CEIS). RIT. Rochester, NY. 10 Apr. 2014. Conference Presentation.
Boedo, S. "Principles of Lubrication." Technical Review Meeting. Torvec Inc. Rochester, NY. 18 Jul. 2013. Guest Lecture.
Boedo, S. "Principles of Elastohydrodynamics." Technical Review Meeting. Trane Corporation. La Crosse, WI. 28 Feb. 2013. Guest Lecture.
Boedo, S. and J.F. Booker. "A Novel Approach to Artificial Hip Joint Design." ASME/STLE 2012 International Joint Tribology Conference, Paper IJTC2012-61236. ASME. Denver, CO. 8 Oct. 2012. Conference Presentation.
Kasemer, M., E.A. DeBartolo, and S. Boedo. "Laboratory Activities to Illustrate the Importance of Low Cycle Fatigue and Linear Elastic Fracture Mechanics." 2012 RIT Undergraduate Research Symposium. RIT. Rochester, NY. 10 Aug. 2012. Conference Presentation.
Boedo, S. and J.F. Booker. "An Elastic Squeeze Film Total Hip Replacement." Cornell Technology Venture Forum. Cornell University. Ithaca, NY. 25 Oct. 2012. Conference Presentation.
Boedo, S. "Principles of Lubrication." Technical Review Meeting. Achates Power Inc. San Diego, CA. 14 Jun. 2012. Guest Lecture.
Boedo, S. and J.F. Booker. "An Elastic Squeeze Film Total Hip Replacement." Celebration of Research: Effective Access Technology Program. RIT. Rochester, NY. 16 Nov. 2012. Conference Presentation.
Invited Paper
Boedo, S. "Improving Design of Artificial Hips." Research at RIT. (2013). Print.
Published Article
Demiri, S., S. Boedo, and W.J. Grande. “Conformality Effects on the Wear of Low-Speed, Large AspectRatio Silicon Journal Microbearings.” Wear,268.3-4 (2010): 361-372. Web. " É *
Booker, J.F., S. Boedo,and D. Bonneau. “Conformal EHL Analysisfor Engine Bearing Design: A Brief Review.”Proceedings of the Institution of MechanicalEngineers, Part C: Journal of MechanicalEngineering Science, 224.12 (2010): 2648-2653. Web. *
Boedo, S., “Mass Conserving Cavitation Effects in Squeeze-Film Journal Bearings Subjectedto Fully Reversing Loads.” Proceedings of the STLE/ASME International Joint TribologyConference, 17-20 Oct. 2010. 1-3. Web. *
Demiri, S., and S. Boedo. “Clearance Effects on the Impact Behavior of Large Aspect Ratio Silicon Journal Microbearings.” Proceedings of the STLE/ASME International Joint TribologyConference, 17-20 Oct. 2010. 1-3. Web. " É *
Boedo, S. “Practical Tribological Issues in Big End Bearings.” Tribology and Dynamics of Engine and Powertrain: Fundamentals, Applications, and Future Trends, 2010. 615-634. Print. *
Currently Teaching
MECE-117
Introduction to Programming for Engineers
3 Credits
This course provides the student with an overview of the use of computer programming for solving problems encountered in engineering. Students will learn how to develop an algorithm for solving a problem and to translate that algorithm into computer code using fundamental structured programming techniques. The programming language(s) employed are selected to support computational problem-solving in higher-level mechanical engineering courses.
MECE-350
Strengths II
3 Credits
This course provides a continuation of concepts pertaining to the mechanics of deformable media and their relation to the failure of materials. Failure topics pertaining to yielding, buckling, fracture, and fatigue for structures under static and dynamic loading conditions are discussed. A function-constraints-objective approach to the mechanical design process is introduced.
MECE-605
Finite Elements
3 Credits
This course focuses upon theoretical and applied concepts pertaining to the finite element method. Direct and weighted residual formulation methods are derived and applied to problems in the area of structural analysis, fluid flow, and heat transfer. Foundational topics include shape functions, element formulation, element assembly, boundary conditions, matrix solution methods, mesh refinement, and convergence. The use of a standard commercial finite element software package is introduced.
MECE-785
Mechanics of Solids
3 Credits
This course provides a more advanced treatment of stress and strain concepts pertaining to the mechanics of deformable media and provides a theoretical foundation for a concurrent or follow-on course in finite elements. Topics include stress and strain transformations, two-dimensional theory of elasticity, stress functions, torsion, plate bending, and energy methods.