This paper describes the development of a procedure to determine optimum tolerances for the balancing of machines with inherent unbalance, such as, 90 degree V-6 engines. The conventional circular tolerances were found not to be the optimum ones. The optimum tolerances result in increased feasible area for the random unbalance vector, without exceeding the vibration levels encountered with conventional tolerances. The development is based on the fact that the absolute unbalance vectors are the controlling factors of the vibration levels. Experimental results have been presented to show the feasibility of the optimum tolerances concept. The application of optimum tolerances in the manufacturing facility, where thousands of nearly identical machines need to be balanced, will result in increased productivity, and a reduction in procurement, repair and operation costs of balancing machines.
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March 1984
This article was originally published in
Journal of Mechanisms, Transmissions, and Automation in Design
Research Papers
Optimum Phasor Tolerances for Machines With Designed Unbalance
H. Nivi,
H. Nivi
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
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B. B. Seth,
B. B. Seth
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
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N. L. Field
N. L. Field
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
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H. Nivi
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
B. B. Seth
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
N. L. Field
Metal Forming and Joining Department, Ford Motor Company, Detroit, Mich. 48239
J. Mech., Trans., and Automation. Mar 1984, 106(1): 41-45 (5 pages)
Published Online: March 1, 1984
Article history
Received:
June 10, 1983
Online:
November 19, 2009
Citation
Nivi, H., Seth, B. B., and Field, N. L. (March 1, 1984). "Optimum Phasor Tolerances for Machines With Designed Unbalance." ASME. J. Mech., Trans., and Automation. March 1984; 106(1): 41–45. https://doi.org/10.1115/1.3258559
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