Results 91 to 100 of about 8,924 (209)

Inertial Vibration Characteristics of Track Chassis Caused by Reciprocating Motion of Crank Slider

open access: yesShock and Vibration, 2019
The crank slider of self‐propelled baling machinery is used for straw compression on the crawler chassis structure. During the reciprocating motion of the crank slider, the inertia of the piston will cause a greater shock to baling machinery. In this paper, the inertia of the crank slider piston was analyzed on crawler chassis.
Zhong Tang   +3 more
openaire   +2 more sources

Design and Experimentation of Comb-Spiral Impact Harvesting Device for Camellia oleifera Fruit

open access: yesAgriculture
Camellia oleifera is one of the four largest woody oil species in the world, with more than 5 million hectares planted in China alone. Reducing bud damage and improving harvesting net rate and efficiency have become the key challenges to mechanized ...
Fengxin Yan   +5 more
doaj   +1 more source

A Proposal for Standardized MMOD Shielding for Robotic Spacecraft [PDF]

open access: yes
NASA robotic spacecraft are required to assess the potential for small debris induced failure for all disposal-critical components. Additional shielding might then be necessary in order to meet the acceptable risk requirement for the overall mission ...
Hull, Scott M.
core   +1 more source

Test 1846A: Challenger MT765C [PDF]

open access: yes, 2009
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

Advanced Low-Floor Vehicle (ALFV) Specification Research [PDF]

open access: yes, 2015
This report details the results of research on market comparison, operational cost efficiencies, and prototype tests conducted on a novel design for an Advanced Low Floor Vehicle (ALFV), flex-route transit bus. Section I describes how the need for such a
Boggs, Wanda   +6 more
core   +1 more source

Evaluation of In-Use Fuel Economy and On-Board Emissions for Hybrid and Regular CyRide Transit Buses, October 2012 [PDF]

open access: yes, 2012
The objective of this project was to evaluate the in-use fuel economy and emission differences between hybrid-electric and conventional transit buses for the Ames, Iowa transit authority, CyRide.

core  

The implementation and operation of a variable-response electronic throttle control system for a TF-104G aircraft [PDF]

open access: yes
During some flight programs, researchers have encountered problems in the throttle response characteristics of high-performance aircraft. To study and to help solve these problems, the National Aeronautics and Space Administration Ames Research Center's ...
Neal, Bradford, Sengupta, Upal
core   +1 more source

Low-cost, multi-agent systems for planetary surface exploration [PDF]

open access: yes, 2012
The use of off-the-shelf consumer electronics combined with top-down design methodologies have made small and inexpensive satellites, such as CubeSats, emerge as viable, low-cost and attractive space-based platforms that enable a range of new and ...
Bennet, Derek James   +4 more
core  

An Adaptive Path Tracking Controller with Dynamic Look-Ahead Distance Optimization for Crawler Orchard Sprayers

open access: yesActuators
Based on the characteristics of small agricultural machinery in terms of flexibility and high efficiency when operating in small plots of hilly and mountainous areas, as well as the demand for improving the automation and intelligence levels of ...
Xu Wang   +5 more
doaj   +1 more source

Status of Designs of Lunar Surface Vehicles [PDF]

open access: yes
This report summarizes the activities of the various organizations that have been giving some thought and design effort to producing a lunar surface traversing vehicle. It is a state-of-the-art rather than a technical report.
Bliss, P. H.
core   +1 more source

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