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Item Information   Holdings       More by this author     Reynolds, Corey Lee [author]     Milwaukee School of Engineering     Subjects     Hydraulic motors     Pistons.     Fluid power technology     MSE Project.     Browse Catalog     by author:      Reynolds, Corey Lee [author]      Milwaukee School of Engineering       by title:      An investigation of ...         MARC Display

An investigation of the low speed operation and efficiency effects of oil within a radial piston hydraulic motor : a report submitted to the faculty of the Milwaukee School of Engineering in partial fulfillment of the requirements for the degree of Master of Science in Engineering / by Corey Lee Reynolds. by Reynolds, Corey Lee [author], Milwaukee School of Engineering Subjects Hydraulic motors   Pistons.   Fluid power technology   MSE Project. Description:  88 leaves : illustrations, some of which are in color ; 29 cm. Contents:  Introduction -- Hydraulic motor principles -- Modeling and simulation methodology -- Testing and model validation -- Results and comparison -- Conclusions and recommendations -- Appendix A: MATLAB code - geometrical layout -- B: MATLAB code - performance calculations -- C: Comparative model torque plots and test data. This investigation outlines the operating principles of a radial piston hydraulic motor and effects of oil properties on low speed operation. A mathematical model stemming from a basic geometric analysis is constructed to define operating characteristics for torque and flow based on input pressure and speed. While the model is not entirely inclusive on all aspects of efficiency, it does include the necessary information to focus on the piston / bore tribological pair and to make accurate assumptions about the contribution of this specific interface regarding friction and efficiency. A detailed analysis of component free-body diagrams allows for the understanding for force contribution and torque generation for the hydraulic motor. The model proved to be accurate, with direct correlation to test data taken at one revolution per minute at varying pressures. Results included a 0.8% difference between theoretical values for torque generation and approximately an 8% reduction in efficiency as a result of friction between the piston and bore wall. Form:  text unmediated volume   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .R49 2014 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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