Results 291 to 300 of about 2,430,413 (334)

Numerical simulation for double-roller rolling process with deep-cylinder ring

AIP Conference Proceedings, 2013
Deep-cylinder rings, as the key mechanical parts of heavy energy equipment, have wide application in nuclear reaction pressure vessels, oil hydrogenation reactors and coal liquefaction devices. Double-roller rolling (DRR) is a new rotary plastic forming technology for deep-cylinder ring manufacturing, which has the advantageous of low energy and ...
Qian Dong-sheng, Guo Jun, Hua Lin
openaire   +1 more source

Vibration characteristics of a double-row tapered roller bearing with raceway defects

Journal of Vibration and Control
Double-row tapered roller bearings (DTRBs) offer significant advantages, including high load-carrying capacity, long service life, and the ability to withstand combined radial and axial loads as well as bending moments.
Shuai Hu, Jingyang Zheng, Jinchen Ji, Van-Canh Tong, Shan Yin, Shuai Zhang, Yuejian Chen   +6 more
semanticscholar   +1 more source

The Double Roller Full Toroidal Variator: A Promising Solution for KERS Technology

2012
We have analyzed in terms of efficiency and traction capabilities a recently patented toroidal traction drive variator: the so-called double roller full toroidal variator (DFTV). We compare its performance with the single roller full-toroidal variator (SFTV) and the single roller half-toroidal variator (SHTV).
CARBONE, Giuseppe, BOTTIGLIONE, Francesco, De Novellis L, MANGIALARDI, Luigi, MANTRIOTA, Giacomo   +4 more
openaire   +3 more sources

Disk cam mechanisms with a translating follower having symmetrical double rollers

Mechanism and Machine Theory, 2009
This paper proposes a novel translating follower that has symmetrical double rollers and also demonstrates how to design such a cam mechanism. Two identical rollers are symmetrically mounted on opposite sides of the follower. The two rollers will take turns to contact the cam when the cam rotates. The application of this follower can greatly reduce the
Long-Iong Wu, Chun-Hsien Liu, Kuan-Lwun Shu, Sun-Liang Chou   +3 more
openaire   +1 more source

The structural design of a large diametric double roller flatwork ironer

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
This paper elaborates the working principles of the modern flatwork ironer. The integral structure of a large diametric double roller flatwork ironer is designed. We put forward a new idea of the heating roller, the internal structure of which is transformed from single layer into double layer.
Ji Qingru, Li Aijun
openaire   +1 more source

Thin strip casting at Thyssen Stahl, using single or double roller

Revue de Métallurgie, 1990
Two different routes for producing the strips are being tried by Thyssen Stahl : a single-roller machine for thicknesses of up to 0.3 mm is in use in Duisburg ; and a double-roller machine for strip in thicknesses between 0.3 mm and 1.0 mm is being operated jointly with the University of Aachen, in Aachen.The single-roller machine operates according to
D. Senk, Ch. Schneider, R. Kopp
openaire   +1 more source

Dynamic Modeling of the Double-Nut Planetary Roller Screw Mechanism Considering Elastic Deformations

, 2021
With the rising application of double-nut planetary roller screw mechanism (PRSM) into industry, increasing comprehensive studies are required to identify the interactions among motion, forces and deformations of the mechanism.
X. Fu, Geng Liu, X. Li, Ma Shangjun, Qiao Guan   +4 more
semanticscholar   +1 more source

Design and optimization and experimental verification of a segmented double-helix blade roller for straw returning cultivators

, 2021
In this study, discrete element method (DEM) simulations of straw-soil rotary blade roller (RBR) were established based on the EDEM software. The forward speed, the rotational speed of the RBR shaft, and the rotary tillage depth were set as the operating
C. Yu, Jun Liu, Jun Zhang, K. Xue, Shun Zhang, J. Liao, Qilei Tai, Dequan Zhu   +7 more
semanticscholar   +1 more source

Modeling of double-row cylindrical roller bearing under combined loads and angular misalignment

Journal of tribology
To enhance the reliability of the double-row cylindrical roller bearing (DCRB), a new quasi-static model, which is capable of considering inner ring misalignment and combined loads, has been established.
Zhijian Wang, Qilong Wu, Zhen Chang, Qingtao Yu   +3 more
semanticscholar   +1 more source

Influence of axial clearance on load distribution in double supported tapered roller bearings of wind turbine main shaft

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
The operational safety and stability of wind turbines are highly determined by the characteristics of main bearings, which are influenced by the axial clearance.
Yanwei Yuan, Jianmei Wang, Lu Ren, Jiguang Chen   +3 more
semanticscholar   +1 more source