Results 101 to 110 of about 12,721 (256)
Jixie chuandong, 2016 Taking the compound planetary gear train as research object,a nonlinear translation- torsion coupled dynamics model is established for compound planetary gear train considering the time- varying meshing stiffness,gear backlash and synthetic meshing ...
Zhou Lu +4 more
doaj
Engineering ProceedingsThe uneven load distribution between the planets in planetary gear trains has found multiple solutions including high manufacturing precision, targeted compliance or kinematic mobility of the components of the gear train.
Vladislav Ivanov +7 more
doaj +1 more source
Restoration Ecology, EarlyView.Abstract Introduction The European Union (EU) policy framework emphasizes the importance of innovation to achieve the environmental goals and to ensure continued economic growth and increased EU global competitiveness. Objectives This paper analyses whether those policy instruments can effectively support ecosystem restoration.
Sašo Gorjanc +6 more
wiley +1 more source
Efficiency testing of a helicopter transmission planetary reduction stage [PDF]
A parametric study of the efficiency of a 310-kW (420-hp) helicopter transmission planetary test section (four planets) was performed. The purpose was to determine the planetary contribution to the overall transmission power loss.
Handschuh, Robert F., Rohn, Douglas A.
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Redundant motor drive system [PDF]
, 1980 A drive system characterized by a base supporting a pair of pillars arranged in spaced parallelism, a shaft extended between and supported by the pillars for rotation about the longitudinal axis thereof, a worm gear affixed to the shaft and supported in ...
Calvert, J. A.
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Advanced continuously variable transmissions for electric and hybrid vehicles [PDF]
A brief survey of past and present continuously variable transmissions (CVT) which are potentially suitable for application with electric and hybrid vehicles is presented. Discussion of general transmission requirements and benefits attainable with a CVT
Loewenthal, S. H.
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Lost Motion Analysis of Micro-segment 3K-I Planetary Gear
Jixie chuandong, 2019 Aiming at the difficult about lost motion calculation of micro-segment planetary gear transmission accuracy. Considering the influence of gear natural error， assembly error and the time-varying mesh stiffness of gears， the lost motion model of planetary ...
Kang Huang +3 more
doaj
Environmental Quality Management, Volume 35, Issue 4, Summer 2026.ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia +1 more
wiley +1 more source
Experimental and analytical evaluation of efficiency of helicopter planetary stage [PDF]
The efficiency of a helicopter transmission planetary stage was studied both experimentally and analytically. Experiments were done by using a back-to-back, test-and-slave arrangement.
Krantz, Timothy L.
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Topological optimisation of rod-stirring devices
, 2010 There are many industrial situations where rods are used to stir a fluid, or where rods repeatedly stretch a material such as bread dough or taffy. The goal in these applications is to stretch either material lines (in a fluid) or the material itself ...
Finn, Matthew D., Thiffeault, Jean-Luc
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