Results 61 to 70 of about 16,005 (251)
Life analysis of helical gear sets using Lundberg-Palmgren theory [PDF]
A mathematical model is developed for surface fatigue life of helical gears. The expected fatigue life of a pinion, gear, or gear set may be calculated from the model. An equation for the dynamic capacity of a gear set was also derived.
Coy, J. J., Zaretsky, E. V.
core +1 more source
Helical motions in the jet of blazar 1156+295 [PDF]
, 1999 The blazar 1156+295 was observed by VLBA and EVN + MERLIN at 5 GHz in June 1996 and February 1997 respectively. The results show that the jet of the source has structural oscillations on the milliarcsecond scale and turns through a large angle to the ...
Garrett, M. A. +5 more
core +3 more sources
Model‐Based Systems Engineering in Space Applications: A Comprehensive Literature Review
Systems Engineering, EarlyView.ABSTRACT The growing complexity of space engineering is driving the demand to embrace the adoption of Model‐Based Systems Engineering (MBSE). Although the MBSE is well‐practiced in the space industry, the level of effort and need required to obtain the benefits of MBSE vastly differ across enterprises; this disparity presents a significant challenge to
Rehobot Bekele Buruso +4 more
wiley +1 more source
Study on Wear Mechanism of Helical Gear by Three-Body Abrasive Based on Impact Load. [PDF]
Materials (Basel), 2022 Yuan W +6 more
europepmc +1 more source
Journal of Synchrotron Radiation, EarlyView.A mobile electromagnetic levitator combined with time‐resolved synchrotron X‐ray diffraction enables in situ studies of high‐temperature phase transformations without container‐induced contamination and reveals the first direct observation of metastable phase formation in undercooled Fe–Co alloys.In situ observations of high‐temperature transformations,
Olga Shuleshova +6 more
wiley +1 more source
Jixie chuandong, 2014 The gear parametric modeling of the key issues is studied based on the generating method.With VC + +6.0programming tools,the 3dsoftware UG NX7.0secondary development,aparameterized module of gear is designed.The modified involute helical gear and all ...
付永涛 +4 more
doaj
Kinematic precision of gear trains [PDF]
Kinematic precision is affected by errors which are the result of either intentional adjustments or accidental defects in manufacturing and assembly of gear trains. A method for the determination of kinematic precision of gear trains is described.
Coy, J. J. +3 more
core +1 more source
Enhancement of speed and efficiency of an Internet based gear design optimisation [PDF]
, 2003 An internet-based gear design optimisation program has been developed for geographically dispersed teams to collaborate over the internet. The optimisation program implements genetic algorithm.
Amin, N, Su, D
core +1 more source
Influence of the Bearing Thermal Deformation on Nonlinear Dynamic Characteristics of an Electric Drive Helical Gear System. [PDF]
Sensors (Basel), 2021 Liu X, Liu D, Hu X.
europepmc +1 more source
Crisis, temporality and governmental policy agendas: The cases of Finland and Sweden
Scandinavian Political Studies, EarlyView.Abstract Crises transform the temporal orientation of political decision‐making. They demand immediate and decisive action and thus convert time into a means of political control. In these circumstances, assessing the long‐term consequences of proposed policies with respect to welfare, sustainability or justice also becomes demanding.
Henri Vogt, Mikko Värttö
wiley +1 more source