Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Dynamic Analysis of Spur Gear Transmissions (DANST). PC Version 3.00 User Manual
Author: Dynamic Analysis of Spur Gear Transmissions (Danst). PC Version 3.00 User Manual
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722184773
Category :
Languages : en
Pages : 26
Book Description
DANST is a FORTRAN computer program for static and dynamic analysis of spur gear systems. The program can be used for parametric studies to predict the static transmission error, dynamic load, tooth bending stress and other properties of spur gears as they are influenced by operating speed, torque, stiffness, damping, inertia, and tooth profile. DANST performs geometric modeling and dynamic analysis for low- or high-contact-ratio spur gears. DANST can simulate gear systems with contact ratios ranging from one to three. It was designed to be easy to use and it is extensively documented in several previous reports and by comments in the source code. This report describes installing and using a new PC version of DANST, covers input data requirements and presents examples. Oswald, Fred B. and Lin, Hsiang Hsi and Delgado, Irebert R. Glenn Research Center RTOP 505-62-36; DA Proj. 1L1-62211-A-47A...
Comparison Study of Gear Dynamic Computer Programs at NASA Lewis Research Center
Author: James J. ZakrajsekPublisher:
ISBN:
Category : Gearing
Languages : en
Pages : 36
Book Description
NASA Technical Memorandum
Author: Face Gear Drive with Spur Involute Pinion: Geometry, Generation by a Worm, Stress Analysis
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 52
Book Description
A face gear drive with a spur involute pinion is considered. The generation of the face gear is based on application of a grinding or cutting worm whereas the conventional method of generation is based on application of an involute shaper. An analytical approach for determination of: (1) the worm thread surface, (2) avoidance of singularities of the worm thread surface, (3) dressing of the worm, and (4) determination of stresses of the face-gear drive, is proposed. A computer program for simulation of meshing and contact of the pinion and face-gear has been developed. Correction of machine-tool settings is proposed for reduction of the shift of the bearing contact caused by misalignment. An automatic development of the model of five contacting teeth has been proposed for stress analysis. Numerical examples for illustration of the developed theory are provided.
Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1804
Book Description
Bibliography of Lewis Research Center Technical Publications Announced in 1993
Author: Decadal Survey of Civil Aeronautics
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309101581
Category : Technology & Engineering
Languages : en
Pages : 212
Book Description
The U.S. air transportation system is very important for our economic well-being and national security. The nation is also the global leader in civil and military aeronautics, a position that needs to be maintained to help assure a strong future for the domestic and international air transportation system. Strong action is needed, however, to ensure that leadership role continues. To that end, the Congress and NASA requested the NRC to undertake a decadal survey of civil aeronautics research and technology (R&T) priorities that would help NASA fulfill its responsibility to preserve U.S. leadership in aeronautics technology. This report presents a set of strategic objectives for the next decade of R&T. It provides a set of high-priority R&T challengesâ€"-characterized by five common themesâ€"-for both NASA and non-NASA researchers, and an analysis of key barriers that must be overcome to reach the strategic objectives. The report also notes the importance of synergies between civil aeronautics R&T objectives and those of national security.
Author: 
Author: