Results 71 to 80 of about 154,875 (200)

A new method for the dynamic mesh stiffness calculation of spur gear under centrifugal effect

open access: yesJixie qiangdu
During the gear meshing process, the driving speed plays a crucial role in evaluating mesh stiffness, a factor that many scholars often overlook along with the accompanying centrifugal effects.
ZHANG Xiaocui   +5 more
doaj  

Analysis of mesh stiffness of herringbone gear considering modification

open access: yesJournal of Physics: Conference Series, 2019
Herringbone gear is a key component in the reducer. Its mesh stiffness is an important parameter in gear dynamics research. In this paper, an improved Velex method is proposed to calculate the mesh stiffness of herringbone gears, and compared with Weber method and Finite Element Method (FEM), the accuracy of the method is proved.
Wei Liu   +3 more
openaire   +1 more source

Matrix-free weighted quadrature for a computationally efficient isogeometric $k$-method

open access: yes, 2018
The $k$-method is the isogeometric method based on splines (or NURBS, etc.) with maximum regularity. When implemented following the paradigms of classical finite element methods, the computational resources required by the $k-$method are prohibitive even
Sangalli, Giancarlo, Tani, Mattia
core   +1 more source

MESHING STIFFNESS AND DYNAMIC ANALYSIS OF GEAR TOOTH SPALLS FAULT BASED ON IMAGE PROCESSING

open access: yesJixie qiangdu, 2022
Tooth surface spalls fault is the irregularly shaped partial pits on the gear surface. In the calculation of gear mesh stiffness. Common method is to simplify the tooth surface spalls to a specific regular shape for research, which has great limitations.
LIU WenZheng   +3 more
doaj  

Non-linear dynamic analysis of geared systems, part 2 [PDF]

open access: yes
A good understanding of the steady state dynamic behavior of a geared system is required in order to design reliable and quiet transmissions. This study focuses on a system containing a spur gear pair with backlash and periodically time-varying mesh ...
Houser, Donald R.   +2 more
core   +1 more source

Accuracy Improvement for Stiffness Modeling of Parallel Manipulators [PDF]

open access: yes, 2009
The paper focuses on the accuracy improvement of stiffness models for parallel manipulators, which are employed in high-speed precision machining. It is based on the integrated methodology that combines analytical and numerical techniques and deals with ...
Chablat, Damien   +3 more
core   +4 more sources

Research of the Calculation Method of the Gear Time-varying Mesh Stiffness based on FEM

open access: yesJixie chuandong, 2019
At present,the formula for calculating time-varying meshing stiffness of gears is often simplified according to the ISO experimental values. This method cannot accurately reflect the comprehensive characteristics of the meshing stiffness of different ...
Zhang Bobo   +5 more
doaj  

Improving the Rotational Stiffness of Compact Aerostatic Guideway by Micro-Structures Optimization

open access: yesIEEE Access, 2019
To meet the requirement for the exact computation of rotational stiffness, this paper puts forward a mesh adaptation based analysis method for a compact multi-throttle aerostatic guideway and its constituent micro-structure.
Zhong-Pu Wen   +4 more
doaj   +1 more source

Effective Width of Floor Systems for Application in Seismic Analysis [PDF]

open access: yes, 1980
Effective width coefficients for floor systems have been developed for use in the analysis of frames subjected to lateral seismic loads. The results cover a wide range of the governing nondimensional parameters, and are applicable to floor slabs with ...
Coctran, F.S., Hall, W.J.
core  

Influence of the Meshing Phase Difference of Planetary Gear Transmission System in 2. 5MW Wind Turbine Gearbox on Its Inherent Frequency

open access: yesJixie chuandong, 2015
A translational- torsional coupling dynamics model of planetary gear transmission on the low speed shaft in 2. 5 MW wind turbine gearbox is built by using lumped- parameter method.
Xue Dan   +3 more
doaj  

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