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30 results on '"Tsay, C.-B."'

4. New Methods For Generating Gear Surfaces

Author

Coy, John J, Handschuh, Robert F, Litvin, F. L, Tsung, W.-J, and Tsay, C.-B. P

Subjects
Machinery
Abstract

Report presents new methods for generating spur, helical, and spiral-bevel gears. Computer programs for analysis of tooth contacts developed for gears. Applied to spiral-bevel gears by use of currently available machinery and tools.

Published
1989

5. New generation methods for spur, helical, and spiral-bevel gears

Author

Litvin, F. L, Tsung, W.-J, Coy, J. J, Handschuh, R. F, and Tsay, C.-B. P

Subjects
Mechanical Engineering
Abstract

New methods for generating spur, helical, and spiral-bevel gears are proposed. These methods provide the gears with conjugate gear tooth surfaces, localized bearing contact, and reduced sensitivity to gear misalignment. Computer programs have been developed for simulating gear meshing and bearing contact.

Published
1987

6. New generation methods for spur, helical, and spiral-bevel gears

Author

Litvin, F. L, Tsung, W.-J, Coy, J. J, Handschuh, R. F, and Tsay, C.-B. P

Subjects
Mechanical Engineering
Abstract

New methods for generating spur, helical, and spiral-bevel gears are proposed. These methods provide the gears with conjugate gear tooth surfaces, localized bearing contact, and reduced sensitivity to gear misalignment. Computer programs have been developed for simulating gear meshing and bearing contact.

Published
1986

7. Spiral bevel and circular arc helical gears: Tooth contact analysis and the effect of misalignment on circular arc helical gears

Author

Litvin, F. L, Tsung, W. T, Tsay, C. B, Coy, J. J, and Handschuh, R. F

Subjects
Aircraft Propulsion And Power
Abstract

A computer aided method for tooth contact analysis was developed and applied. Optimal machine-tool settings for spiral bevel gears are proposed and when applied indicated that kinematic errors can be minimized while maintaining a desirable bearing contact. The effect of misalignment for circular arc helical gears was investigated and the results indicted that directed pinion refinishing can compensate the kinematic errors due to misalignment.

Published
1985

21. Tooth Contact Analysis for Helical Gears with Pinion Circular Arc Teeth and Gear Involute Shaped Teeth

Author

Tsay, C.-B. and Fong, Z. H.

Abstract

In this paper, the theory of gearing and the concept of differential geometry have been applied to deal with the relations of two mating gears and of their bearing contact. The gear tooth surfaces of this type of gearing contact with each other at every instant at one point instead of one line. The bearing contact of the gear tooth surface is localized and the center of the bearing contact moves along the tooth surface. Thus, this type of helical gearing is not as sensitive to center distance variation and gear axes misalignment. This paper covered the solutions to the following problems: (1) Computer simulation of the conditions of meshing and bearing contact and (2) Investigation of the sensitivity of gears to the errors of manufacturing and assembly. A method of compensation for the dislocation of the bearing contact induced by errors of manufacturing and assembly has been proposed. Five numerical examples have also been presented to illustrate the influence of the above mentioned errors and the method of compensation for the dislocation of bearing contact.

Published
1989
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24. New Generation Methods for Spur, Helical, and Spiral-Bevel Gears.

Author

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER, Litvin,F L, Tsung,W J, Coy,J J, Handschuh,R F, Tsay,C B, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER, Litvin,F L, Tsung,W J, Coy,J J, Handschuh,R F, and Tsay,C B

Abstract

Research was directed at finding new methods for generating spur, helical, and spiral-bevel gears that would provide conjugate gear tooth surfaces and localized bearing contact and would reduce kinematic errors (gear noise) caused by gear misalignment. Tooth contact analysis (TCA) computer programs have been developed for these gears. These programs make it possible to simulate gear meshing and bearing contact and to investigate the influence of gear misalignment on kinematic errors. The proposed generation methods can be applied to the spiral-bevel gears by using current machinery and tools, but new tool shapes are needed for the spur and helical gears. Keywords: Machine design, Transmission, Helicopter gears.

Published
1986

25. Spiral Bevel and Circular Arc Helical Gears: Tooth Contact Analysis and the Effect of Misalignment on Circular Arc Helical Gears.

Author

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER, Litvin,F L, Tsung,W T, Tsay,C B, Coy,J J, Handschuh,R F, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER, Litvin,F L, Tsung,W T, Tsay,C B, Coy,J J, and Handschuh,R F

Abstract

A computer aided method for tooth contact analysis was developed and applied. Optimal machine-tool settings for spiral bevel gears are proposed and when applied indicated that kinematic errors can be minimized while maintaining a desirable bearing contact. The effect of misalignment for circular arc helical gears was investigated and the results indicated that directed pinion refinishing can compensate the kinematic error due to misalignment. (Author)

Published
1985

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