Innovative Design of Cam-Controlled Planetary Gear Trains
AbstractThe objective of this paper is to perform the innovation design for the new structures of cam-controlled planetary gear trains (CCPGTs), based on the creative mechanism design methodology. Firstly, the design requirements and design constraints are summarized according to the kinematics characteristics of existing CCPGTs. Then, the (4, 5) and (5, 7) graphs are generated by the theory of number synthesis. After that, the atlas of feasible specialized graphs is obtained. Finally, the atlas of new designs is obtained through the particularization process. In addition, an illustrated example is given, and the feasibility of the design is verified by computer simulation using ADAMS software. The result indicates that news design can produce a more wide range of non-uniform motion than the existing design, therefore they are better alternatives for driving a variable speed input mechanism.
N. P. Chironis and N. Sclater, Mechanisms & mechanical devices sourcebook, 2nd ed. New York: McGraw-Hill, 1996.
W. H. Hsieh, "An experimental study on cam-controlled planetary gear trains," Mechanism and Machine Theory, vol. 42, pp. 513-525, May 2007.
W. H. Hsieh and I. C. Lee, "Modelling and control of cam-controlled planetary gear trains," International Journal of Modelling, Identification and Control, vol. 12, pp. 272-279, Apr. 2011.
W. H. Hsieh, Improving the state of motion of followers by controlling cam speed, Master Thesis, Graduate School of Mechanical Engineering, National Cheng Kung University, 1991. (In Chinese)
H. S. Yan and W.R. Chen, "On the output motion characteristics of variable input speed servo-controlled slider-crank mechanisms," Mechanism and Machine Theory, vol. 35, pp. 541-561, 2000.
H. S. Yan, M. C. Tsai, and M. H. Hsu, "An experimental study of the effects of cam speeds on cam-follower systems," Mechanism and Machine Theory, vol. 31, pp. 397-412, 1996.
H. S. Yan, Creative Design of Mechanical Devices, Singapore: Springer, 1998.
H. S. Yan, "A methodology for creative mechanism design," Mechanism and Machine Theory, vol. 27, pp. 235-242, May 1992.
C. H. Hsu, “A graph representation for the structural synthesis of geared kinematic chains,” Journal of the Franklin Institute, vol. 330, pp. 131-143, Jan. 1992.
Copyright (c) 2011 International Journal of Engineering and Technology Innovation
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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.