Results 81 to 90 of about 150,049 (210)

The linear boom actuator designed for the Galileo spacecraft [PDF]

open access: yes, 1983
Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core   +1 more source

Analysis of Gear Contact Stress of High-speed Train Gearbox

open access: yes机车电传动, 2019
The strength of the gear pair in the high-speed train gearbox is a key factor for the safe operation of the train, using China’s independent research and development high-speed train bogie gearbox gear as study object, three-dimensional gear system model
Hailong WANG, Linghui WEI, Canjiang YAO
doaj  

Advanced transmission studies [PDF]

open access: yes
The NASA Lewis Research Center and the U.S. Army Aviation Systems Command share an interest in advancing the technology for helicopter propulsion systems.
Bill, Robert C., Coy, John J.
core   +1 more source

Three axis controller Patent [PDF]

open access: yes, 1962
Unitary three-axis controller for flight vehicles within or outside ...
Holleman, E. C.
core   +1 more source

Rotorcraft transmission [PDF]

open access: yes
The NASA Lewis Research Center and the U.S. Army Aviation Systems Command share an interest in advancing the technology for helicopter propulsion systems.
Coy, John J.
core   +1 more source

Electromechanical rotary actuator operates over wide temperature range [PDF]

open access: yes, 1969
Electromechanical rotary actuator, which operates over wide temperature range, contains a spring stop which has been calculated to limit internal deceleration loads to a magnitude equal to stall torque.
Sullivan, S. F.
core   +1 more source

大传动比复合轮系最佳齿数研究

open access: yesJixie chuandong, 2009
The relationship among each gear number of teeth for compound gear train with large transmission is studied,which includes a row of profile shift gear.
杨慧香, 王晖
doaj  

The evolution of a release-engage mechanism for use on the orbiter [PDF]

open access: yes, 1983
The Release-Engage Mechanism (REM) is designed to secure a deployable payload in the orbiter during launch and to enable the payload to be released, deployed, and reattached for re-entry. This paper presents the following: (1) the initial design concepts
Calvert, J.
core   +1 more source

Kineto-static Analysis of Planetary Gear Train based on Vector Bond Graph Method

open access: yesJixie chuandong, 2016
For the problem of kineto- static analysis for planetary gear train,the corresponding vector bond graph procedure is proposed. Based on the kinematic constraint condition of planar compound revolute joint,the procedure for modeling planar compound ...
Wang Zhongshuang, Jing Weike
doaj  

Instabilities of geared couplings: Theory and practice [PDF]

open access: yes, 1982
The use of couplings for high speed turbocompressors or pumps is essential to transmit power from the driver. Typical couplings are either of the lubricated gear or dry diaphragm type design.
Kirk, R. G., Mondy, R. E., Murphy, R. C.
core   +1 more source

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