Results 111 to 120 of about 724 (198)

An antenna-pointing mechanism for the ETS-6 K-band Single Access (KSA) antenna [PDF]

open access: yes
Both the design philosophy for the Antenna Pointing Mechanism (APM) to be used for the K-band Single Access (KSA) antenna system and experimental results of the APM Engineering Model (EM) tests are described.
Amano, Takahiro   +3 more
core   +1 more source

A Basic Robotic Excavator (the Glenn Digger): Description, Design, and Initial Operation [PDF]

open access: yes
This paper describes the design, commercial part selections, fabrication, assembly, installation, and initial operation of a two degree of freedom robotic excavator.
Abel, Phillip   +4 more
core   +1 more source

Development of the Tri-ATHLETE Lunar Vehicle Prototype [PDF]

open access: yes
The Tri-ATHLETE (All Terrain Hex Limed Extra Terrestrial Explorer) vehicle is the second generation of a wheel-on-limb vehicle being developed to support the return of humans to the lunar surface.
Frost, Matt   +3 more
core   +1 more source

Stress Analysis of the Flexspline with Double- circular- arc Tooth Profile and Variable Structure

open access: yesJixie chuandong, 2015
The overall three- dimensional assembly models of harmonic gear drive with double- circular- arc tooth profile and elliptical wave generator is established,then,the finite element analysis of the assembly model is carried out.
Zhang Yushuang   +5 more
doaj  

Robust tuning of robot control systems [PDF]

open access: yes
The computed torque control problem is examined for a robot arm with flexible, geared, joint drive systems which are typical in many industrial robots.
Minis, I., Uebel, M.
core   +1 more source

The Lunar Roving Vehicle: Historical perspective [PDF]

open access: yes
As NASA proceeds with its studies, planning, and technology efforts in preparing for the early twenty-first century, it seems appropriate to reexamine past programs for potential applicability in meeting future national space science and exploration ...
Morea, Saverio F.
core   +1 more source

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