Results 91 to 100 of about 33,818 (247)
Computer-aided design of high-contact-ratio gears for minimum dynamic load and stress [PDF]
A computer aided design procedure is presented for minimizing dynamic effects on high contact ratio gears by modification of the tooth profile. Both linear and parabolic tooth profile modifications of high contact ratio gears under various loading ...
Lee, Chinwai +3 more
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Dynamics of early planetary gear trains [PDF]
A method to analyze the static and dynamic loads in a planetary gear train was developed. A variable-variable mesh stiffness (VVMS) model was used to simulate the external and internal spur gear mesh behavior, and an equivalent conventional gear train ...
August, R. +3 more
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Measuring cellular traction forces on non-planar substrates
, 2016 Animal cells use traction forces to sense the mechanics and geometry of their environment. Measuring these traction forces requires a workflow combining cell experiments, image processing and force reconstruction based on elasticity theory.
Dreissen, Georg +6 more
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Advances in Mechanical Engineering, 2017 To analyze the influence mechanism of pitch deviation on cylindrical helical gear meshing stiffness and vibration noise, the calculation methods about meshing stiffness and engaging vibration of helical gear which consider actual pitch deviations are ...
Feng Wang +3 more
doaj +1 more source
Nonlinear Dynamic Analysis of a Spur Gear Pair System with Wear Considering the Meshing Position
LubricantsIn this paper, a nonlinear dynamic model of a parallel shaft gear system consisting of two involute spur gears is developed to investigate the coupling effect between the gradual surface wear of gear teeth over time and nonlinear dynamic characteristics.
Zhibo Geng +5 more
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Study on the Time-varying Mesh Stiffness of Speed-increasing Gear Pair with Non-uniform Wear
Jixie chuandong, 2019 Taking an involute cylindrical speed-increasing gear pair as the research object, the tooth surface contact pressure and the relative sliding velocity are deduced to establish the non-uniform wear model of the spur gear pair based on the Hertz contact ...
He Zeyin +3 more
doaj
Implementation of a Matrix Crack Spacing Parameter in a Continuum Damage Mechanics Finite Element Model [PDF]
Continuum Damage Mechanics (CDM) based progressive damage and failure analysis (PDFA) methods have demonstrated success in a variety of finite element analysis (FEA) implementations.
Bergan, Andrew +5 more
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Jixie chuandong, 2014 Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元 +3 more
doaj
Misalignment diagnosis of a planetary gearbox based on vibration analysis [PDF]
, 2014 As a critical power transmission system, planetary gearbox is widely used in many industrial important machines such as wind turbines, aircraft turbine engines, helicopters.
Abdalla, Gaballa M. +5 more
core
Nonlinear Dynamic Modeling of a Gear-Bearing Transmission System Based on Dynamic Meshing Parameters
MachinesThe nonlinear contact force between gears and bearings exhibits intricate dynamics. This paper focuses on the coupling relationship between the time-varying meshing parameters of the gears, dynamic backlash, and dynamic bearing clearance in gear-bearing ...
Jinzhou Song +7 more
doaj +1 more source