Results 71 to 80 of about 1,024 (244)

Influence of real surface topography on the contact area ratio in differently manufactured spur gears

open access: yes, 2012
Surface topography measurements from spur gears produced using four different manufacturing methods were used as input to a contact analysis programme.
Bergseth, Ellen,   +2 more
core   +1 more source

Study on IIobbing Experiment of of through hardened Gears

open access: yesJixie chuandong, 1994
The results of hobbing right-angle experiment for a group of through hardened involute gears (HBS 330-340) and for several groups of comparing experiments are described in this paper.Some factors which influenced the hobbing of fects-gcometric accuracy ...
Chen Yuan, et al.
doaj  

Basic study on measurement of surface temperature at high contact pressure by dynamic thermocouple with dissimilar hardened gears

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Power transmission systems using gears require both large capacity and miniaturization. As a result, the gears used in power transmission need to be strong enough to withstand high loads and high engine speeds.
Yasuyoshi TOZAKI   +4 more
doaj   +1 more source

Revising Structuralism in Times of Crisis: Lance Taylor and the Neo‐Structuralist Synthesis in the 1980s

open access: yesMetroeconomica, EarlyView.
ABSTRACT This article places the work of Lance Taylor in the broader context of efforts in the 1980s to renew the structuralist tradition of development economics, into what was then newly coined as neo‐structuralism. These efforts centred around three groups: CEPAL, Lance Taylor and his team at MIT, and a group of economists based at the Institute of ...
Andrew M. Fischer
wiley   +1 more source

Comparison of different ISO 6336 design methods for bending fatigue strength estimation of case-hardened gears

open access: yes, 2013
ISO 6336 standard provides calculation procedures for bending fatigue strength estimations of cylindrical case-hardened gears starting from standardized fatigue curves obtained from reference gears or from experimental curves of plain or notched ...
DENGO, CARLO, MENEGHETTI, GIOVANNI
core  

Tests on Scoring Resistanceof Through Hardened Gears

open access: yesJixie chuandong, 1994
按齿轮胶合承载能力试验方法(GB/T13672—92)对40CrNi2Mo中硬台面齿轮进行了胶合承载能力试验,试验测定该种齿轮的抗胶合承载能力失效载荷级为6级。铁谱分析很好地反映了胶合发生时抽样中磨粒的变化情况。
赵兴中   +3 more
doaj  

Regulating via Conditionality: The Instruments of the New Industrial Policy

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Conditionality was a central concern in the development literature of the 1990s. With the significant expansion of targeted public support to private firms since the Great Financial Crisis, the issue of conditionality has once again become a focal point in industrial policy debates.
Fabio Bulfone, Timur Ergen, Erez Maggor
wiley   +1 more source

Effect of Surface-Finishing on Surface Durability of Surface-Hardened Gears

open access: yes, 1991
The effect of tooth surface-finishing on the surface durability of surface-hardened gears was investigated from the viewpoint of gear-manufacturing methods and load carrying capacity.
Ariura, Yasutsune   +4 more
core  

Parameters selection of shot peening gears of carburized and hardened steel 21NiCrMo2

open access: yes, 2016
This article presents the methodology of shot peening gears’ parameters selection used in agricultural tractor transmission. The gears made of steel have been treated with 21NiCrMo2 thermal-chemical consisting of carburization to the depth of 0.8 mm and ...
Grzelak, K.   +3 more
core   +1 more source

Selection of effective hardened case depth of gears based on the tooth failure mode

open access: yesJixie chuandong
ObjectiveThe depth of the hardened layer of gears is a significant factor influencing on strength and load-carrying capacity of gears. Modern research shows that different failure modes of gears require different effective hardened case depths.
LIU Zhongming   +4 more
doaj  

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