The Cooling Design of a High-Speed Rotating Axis with Ribbed Turbulators
Keywords:heat transfer, high-speed rotation, five-axis processing machine, ribbed turbulators
AbstractThis work experimentally and numerically investigated the heat transfer characteristics of the high-speed rotating axis of five-axis processing machines. The test section of rotation axis possesses the novel design with ribbed turbulators to strengthen heat dissipation. A good cooling design will reduce the coefficient of thermal expansion, the thermal deformation and the damage of cutting tools to enhance the delicacy and the efficiency of the processing machining. In order to make the analysis meaningful, the experimental condition was made as close to the working of the real high-speed rotation axis as possible, and the oil was employed as the coolant. The relevant experiments analyzed the heat transfer distributions in radial directions and the axial directions of the rotor located in the test section of round cylinder with different rotational speeds. The empirical formula based on the test results was proposed to provide critical references for machining delicacy improvement in five-axis processing machines.
Song F., Ewing D. and Ching C. Y., “Experimental investigation on the heat transfer characteristics of axial rotating heat pipes,” Int. J. Heat Mass Transfer, vol. 47, pp.4721-4731, 2004.
Bouafia, M., Bertin, Y., Saulnier, J. B. and Ropert, P., “Experimental analysis of heat transfer in a narrow and grooved annular gap with rotating inner cylinder,” Int. J. Heat Mass Transfer, vol. 41, pp. 1279-1291, 1998.
Hwang, J. J. and Lai, D. Y., “Three-dimensional mixed convection in a rotating multiple-pass square channel,” Int. J. Heat Mass Transfer, vol. 41, pp. 979-991, 1998.
Kolyshkin, A. A. and Vaillancourt, Rémi., “Linear stability of Couette flow with rotating inner cylinder and radially nonuniform internal heat sources,” Int. J. Heat Mass Transfer, vol. 39, pp. 537-545, 1998.
Yan, W. M. and Soong, C. Y., “Simultaneously developing mixed convection in radially rotating rectangular ducts,” Int. J. Heat Mass Transfer, vol. 38, pp. 665-677, 1995.
Soong, C. Y. and Yan, W. M., “Development of secondary flow and convective heat transfer in isothermal/iso-flux rectangular ducts rotating about a parallel axis, Int. J. Heat Mass Transfer, vol. 42 pp. 497-510, 1999.
Soong, C. Y., Wu, C. C., Liu, T. P. and Liu, T. P., “Flow structure between two co-axial disks rotating independently,” Experimental Thermal and Fluid Science, vol. 27, pp. 295-311, 2003.
Kline, S. J. and MaClintock, F. A., “Describing uncertainties in single sample experiments,” Mechanical Engineering, pp. 3-8, 1953.
How to Cite
Submission of a manuscript implies: that the work described has not been published before that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication. Authors can retain copyright in their articles with no restrictions. Also, author can post the final, peer-reviewed manuscript version (postprint) to any repository or website.
Since Jan. 01, 2019, IJETI will publish new articles with Creative Commons Attribution Non-Commercial License, under Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) License.
The Creative Commons Attribution Non-Commercial (CC-BY-NC) License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.