Mechanical Systems Technology Branch research summary, 1985 - 1992 [PDF]
A collection of significant accomplishments from the research of the Mechanical Systems Technology Branch at the NASA Lewis Research Center completed during the years 1985-1992 is included.
Krantz, Timothy L.
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Global dynamic modeling of a transmission system [PDF]
The work performed on global dynamic simulation and noise correlation of gear transmission systems at the University of Akron is outlined. The objective is to develop a comprehensive procedure to simulate the dynamics of the gear transmission system ...
Choy, F. K., Qian, W.
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Aeronautical Engineering: A continuing bibliography with indexes, supplement 99 [PDF]
This bibliography lists 292 reports, articles, and other documents introduced into the NASA scientific and technical information system in July ...
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MODEL-BASED DIAGNOSTICS OF SIMULTANEOUS TOOTH CRACKS IN SPUR GEARS [PDF]
, 2017 This study aims at developing a numerical model that could be used to simulate the effect of tooth cracks on the vibration behavior of spur gears. Gears are a key component that is widely used in various rotating equipment in order to transmit power and ...
Mohamed, Ahmed Saeed
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Meshing stiffness characteristics of modified variable hyperbolic circular-arc-tooth-trace cylindrical gears [PDF]
Stiffness excitation is one of the important excitations for the variable hyperbolic circular-arc-tooth-trace (VH-CATT) cylindrical gear system. Accurate calculation of the gear meshing stiffness is of great significance to investigating dynamic ...
B. Jiang, D. Ma, Y. Liu, Z. Ye
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An ankle robot for a modular gait rehabilitation system [PDF]
, 2004 Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.Includes bibliographical references (p. 111-112).Patients with neurological disorders, such as stroke survivors, can be treated with physical rehabilitation to ...
Wheeler, Jason W. (Jason William)
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Design and manufacture of lightweight for spiral bevel gear with double pressure angles of mining reducer [PDF]
, 2014 矿用减速器的结构对整机轻量化影响很大,优化弧齿锥齿轮的结构尺寸能有效减少减速器齿轮、轴承座和箱壳的质量。针对矿用减速器的工作状况,提出在工作齿面采用大压力角,在非工作齿面采用标准压力角的非对称弧齿锥齿轮。对双压力角非对称弧齿锥齿轮的啮合传动原理、齿轮副齿面方程进行了推导,分析非对称设计对工作齿面压力角变化范围的影响,对减速器弧齿锥齿轮齿形进行计算,对比了对称和非对称弧齿锥齿轮主动轮和被动轮。设计并制造了非对称单面刀盘和双面刀盘,加工出双压力角非对称弧齿锥齿轮,通过解析法 ...
肖望强
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Static, Dynamic, and High Cycle Fatigue Analysis of Crossed Spherical Gearing for Robotic Arm Ball Joint: A Finite Element Analysis Approach [PDF]
Crossed spherical gearing is used in the joints of robotic arm prostheses and allows mobility in 3 degrees of freedom. This paper aims to evaluate the design of a cross-spherical gear with three different materials, PEEK, AISI 304L, and Ti-6Al-4V, for a ...
Algoner, William C. +6 more
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Parametric Instability Investigation and Stability Based Design for Transmission Systems Containing Face-gear Drives [PDF]
, 2012 The objective of this dissertation is to provide a novel design methodology for face-gear transmissions based on system stability - a dynamics viewpoint.
Peng, Meng
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Transmission error in spur gears: Static and dynamic finite-element modeling and design optimization [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 07/10/2010.The gear noise problem that widely occurs in power transmission systems is typically characterised by one or more high amplitude acoustic ...
Tharmakulasingam, Raul
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