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An Experimental Study of Spin Power Losses of a High-Speed Gearbox

McDonald, Kyler
http://rave.ohiolink.edu/etdc/view?acc_num=osu1523371969014841

Abstract Details

2018, Master of Science, Ohio State University, Mechanical Engineering.
An experimental study is conducted to investigate individual contributions of components to the total spin power loss of a high-speed, aerospace gearbox operating under realistic lubricant flow conditions. An experimental test setup capable of operating the test gearbox containing double-helical gears at desired speeds, temperatures and lubrication conditions is designed and fabricated. Dedicated measurement systems to monitor bearing and oil temperatures as well as the torque loss of the gearbox are devised, and accompanying data analysis systems are developed. A test matrix consisting of two different lubricant flow conditions is defined, each covering a wide range of input speed. These tests are performed with the gearbox having variations of hardware content to separate gear drag, gear mesh pocketing, and bearing power losses from each other. These baseline tests show that the power losses increase with increased lubricant flow rates. They further demonstrate that all three power losses are comparable to each other, and hence, must be considered in evaluating spin power loss of such systems. An auxiliary parametric study is designed to further investigate the effect of the trapped volume in the gear mesh on pocketing power loss. A family of gears having different addendum coefficients are meshed with the same gear forming different root clearance values. The results of these tests are compared to quantify the influence of root clearance on resultant pocketing power loss.
Ahmet Kahraman, Dr. (Advisor)
Davie Talbot, Dr. (Committee Member)
80 p.
Mechanical Engineering
Gears; Planetary Gear Sets; High-Speed; Spin Power Loss; Experimental

Recommended Citations

Citations

  • McDonald, K. (2018). An Experimental Study of Spin Power Losses of a High-Speed Gearbox [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523371969014841

    APA Style (7th edition)

  • McDonald, Kyler. An Experimental Study of Spin Power Losses of a High-Speed Gearbox. 2018. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1523371969014841.

    MLA Style (8th edition)

  • McDonald, Kyler. "An Experimental Study of Spin Power Losses of a High-Speed Gearbox." Master's thesis, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523371969014841

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.
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