Results 21 to 30 of about 3,364,578 (232)

Influence of Assembly Errors and Tooth Surface Modification on Transmission Errors of Curvilinear Cylindrical Gears

open access: yesJixie chuandong, 2022
Tooth surface equations of a curvilinear cylindrical gear with parabolic modification are derived based on the gear meshing theory. The solving method of the initial contact position of the gear finite element model is studied, a finite element model of ...
Zhang Xuegang   +2 more
doaj  

Experimental and Theoretical Study of Gear Dynamical Transmission Characteristic Considering Measured Manufacturing Errors

open access: yesShock and Vibration, 2018
In the research of gear transmission, the vibration and noise problem has received many concerns all the times. Scholars use tooth modification technique to improve the meshing state of gearings in order to reduce the vibration and noise. However, few of
Fang Guo, Zongde Fang
doaj   +1 more source

Design and Analysis for Hypoid Gears with Ease-Off Flank Modification

open access: yesApplied Sciences, 2022
An approach of ease-off flank modification for hypoid gears was proposed to improve the meshing performance of automobile drive axle. Firstly, a conjugate pinion matching with gear globally was developed based on gear meshing theory. Secondly, a modified
Qin Wang   +5 more
doaj   +1 more source

Effect of Symmetry Error and Error Coupling Compensation on Meshing Characteristic of Herringbone Gear

open access: yesJixie chuandong, 2021
In order to study the effect of the symmetry error generated by processing on the herringbone character gear meshing transmission, improve the stability of the transmission, according to the structural characteristics of herringbone gear and gear ...
Weiguo Li   +3 more
doaj  

Research on Loaded Contact Analysis and Tooth Wear Calculation Method of Cycloid–Pin Gear Reducer

open access: yesLubricants, 2023
This study establishes the geometric model of cycloid–pin gear meshing transmission based on the multi-tooth meshing characteristics of the cycloid speed reducer.
Yongqiang Wang   +4 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

From transmission error measurement to Pulley-Belt slip determination in serpentine belt drives : influence of tensioner and belt characteristics [PDF]

open access: yes, 2009
Serpentine belt drives are often used in front end accessory drive of automotive engine. The accessories resistant torques are getting higher within new technological innovations as stater-alternator, and belt transmissions are always asked for higher ...
Dufour, Regis   +3 more
core   +1 more source

Sensitivity Analysis of Helical Gears with Tooth Surface Modification to Applied Torque and Gear Misalignment [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The numerical calculation model of time-varying mesh stiffness, static transmission error and composite mesh error of modified helical gears is developed based on loaded tooth contact analysis (LTCA) model.

doaj   +1 more source

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis   +2 more
wiley   +1 more source

Intermittent gear rattle due to interactions between forcing and manufacturing errors [PDF]

open access: yes, 2008
The interaction between eccentricity and an external forcing fluctuation in gear rattle response is investigated experimentally. The experimental rig consists of a 1:1 ratio steel spur gear pair, the input gear being controlled in displacement and the ...
Wilson, RE   +5 more
core   +1 more source

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