Results 81 to 90 of about 17,490 (206)

Nonlinear Dynamics Modeling and Analysis of Torsional Spring-Loaded Antibacklash Gear with Time-Varying Meshing Stiffness and Friction

open access: yesAdvances in Mechanical Engineering, 2013
Torsional spring-loaded antibacklash gear which can improve the transmission precision is widely used in many precision transmission fields. It is very important to investigate the dynamic characteristics of antibacklash gear. In the paper, applied force
Zheng Yang   +4 more
doaj   +1 more source

Profile modification to minimize spur gear dynamic loading [PDF]

open access: yes
An analytical computer simulation program for dynamic modeling of low-contact-ratio spur gear systems is presented. The procedure computes the static transmission error of the gears operating under load and uses a fast Fourier transform to generate the ...
Lin, Hsiang Hsi   +2 more
core   +1 more source

Reduction of gear pair transmission error with tooth profile modification [PDF]

open access: yes, 2008
The gear noise problem that widely occurs in power transmission systems is typically characterised by one or more high amplitude acoustic signals. The noise originates from the vibration of the gear pair system caused by transmission error excitation ...
Alfano, G   +2 more
core  

Measuring cellular traction forces on non-planar substrates

open access: yes, 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
core   +1 more source

Study of the influence mechanism of pitch deviation on cylindrical helical gear meshing stiffness and vibration noise

open access: yesAdvances 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

Effect of contact ratio on spur gear dynamic load [PDF]

open access: yes
A computer simulation is presented which shows how the gear contact ratio affects the dynamic load on a spur gear transmission. The contact ratio can be affected by the tooth addendum, the pressure angle, the tooth size (diametral pitch), and the center ...
Lin, Hsiang Hsi   +3 more
core   +1 more source

Nonlinear Dynamic Analysis of a Spur Gear Pair System with Wear Considering the Meshing Position

open access: yesLubricants
In 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
doaj   +1 more source

Study on the Time-varying Mesh Stiffness of Speed-increasing Gear Pair with Non-uniform Wear

open access: yesJixie 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  

The potential use of new forms of adjustable hydrodynamic bearings in the intelligent monitoring and maintenance of machine accuracies

open access: yes, 2003
New forms of adjustable fluid film hydrodynamic bearings have shown great potential for suppressing vibrations and maintaining accuracy of location of rotational centres.
Martin, Keith
core  

齿根裂纹与轮齿啮合刚度关联规律研究

open access: yesJixie 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  

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