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Keywords: pulleys
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Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2011, 133(11): 111001.
Published Online: November 1, 2011
...Weiming Zhang A troublesome problem in flat belt transmission is a phenomenon known as skew, where the belt moves along the axial direction of the pulleys in operation. Skew usually is caused by angular misalignment of pulleys. Angular misalignment can be classified in two types, in-plane...
Topics: Belts, Pulleys
Journal Articles
Article Type: Research Papers
J. Mech. Des. April 2011, 133(4): 041006.
Published Online: May 18, 2011
...Francesco Sorge; Marco Cammalleri A very common configuration of V-belt variators for motorcycles considers the correction of the belt tensioning depending on the resistant torque by means of suitable helical-shaped tracks allowing the driven half-pulleys to close/open. The theoretical model...
Journal Articles
Article Type: Research Papers
J. Mech. Des. July 2010, 132(7): 071005.
Published Online: June 17, 2010
...Masanori Kagotani; Hiroyuki Ueda Helical synchronous belt drives are effective for reducing the noise and transmission error per single pitch of a pulley, as compared with conventional synchronous belt drives. However, the helix angle of the tooth trace causes axial belt movement. When the belt...
Journal Articles
Article Type: Research Papers
J. Mech. Des. February 2010, 132(2): 021005.
Published Online: January 22, 2010
...) model, to accurately predict the slip behavior and the traction performance of the variator. To achieve this objective, it is necessary to accurately estimate the elastic displacements of the pulley. The determination of the actual pulley deformation allows to obtain a better estimation of the sliding...
Journal Articles
Article Type: Research Papers
J. Mech. Des. August 2009, 131(8): 081004.
Published Online: July 15, 2009
...Masanori Kagotani; Hiroyuki Ueda Synchronous belt drives are occasionally required to transmit rotation accurately and are often employed in bidirectional operation. For transmission error per single pitch of the pulley, a helical synchronous belt with a helix angle of the tooth trace is effective...
Journal Articles
Article Type: Research Papers
J. Mech. Des. January 2009, 131(1): 011003.
Published Online: December 11, 2008
...G. Carbone; M. Scaraggi; L. Soria This paper deals with the strongly nonstationary squeeze of an oil film at the interface between the chain pin and pulley in chain belt continuously variable transmission. We concentrate on the squeeze motion as it occurs as soon as the pin enters the pulley groove...
Journal Articles
Article Type: Research Papers
J. Mech. Des. December 2008, 130(12): 122602.
Published Online: November 3, 2008
... two planes through the pulley axis and balancing the inside mass variation with the total mass flux through the control surface. On the other hand, the belt equilibrium conditions are similar to the steady case, as the inertia forces due to the shifting motion are negligible with respect to the other...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. February 2008, 130(2): 024502.
Published Online: December 27, 2007
...F. Sorge Belt drives work often with short center distances and very different wrap arcs so that high adherence characteristics are required at the belt-pulley contact. In addition, the belt flexural stiffness reduces the contact width, but this decrease may be compensated in part by the belt...
Journal Articles
Article Type: Research Papers
J. Mech. Des. January 2008, 130(1): 011009.
Published Online: December 7, 2007
...Carlo Innocenti; Davide Paganelli The paper presents a new procedure to design a two-pulley synchronous belt transmission connecting, with no belt tensioner, two parallel-axis shafts with a variable velocity ratio. The procedure takes into account the limited number of choices for pitch and length...
Journal Articles
Article Type: Research Papers
J. Mech. Des. March 2006, 128(2): 494–502.
Published Online: June 23, 2005
...Lingyuan Kong; Robert G. Parker The steady mechanics of a two-pulley belt drive system are examined where the pulley grooves, belt extension and wedging in the grooves, and the associated friction are considered. The belt is modeled as an axially moving string with the tangential and normal...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2005, 127(6): 1198–1206.
Published Online: March 16, 2005
...G. Song; K. Chandrashekhara; W. F. Breig; D. L. Klein; L. R. Oliver This paper investigates the operation of an automotive poly-rib serpentine belt system. A three-dimensional dynamic finite element model, consisting of a driver pulley, a driven pulley, and a complete five-rib V-ribbed belt...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. January 2005, 127(1): 103–113.
Published Online: March 2, 2005
... on the basis of the Coulomb friction hypothesis. The deformation of the belt, i.e., the variation of its transversal width, is shown to be negligible with respect to the variation of the local groove width caused by the elastic deformation of the pulleys and by the clearance in the bearings. The particular...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2004, 126(5): 881–888.
Published Online: October 28, 2004
...Masanori Kagotani, Professor,; Kenichi Makita; Hiroyuki Ueda, Associate Professor,; Tomio Koyama, Professor, Helical synchronous belt drives are more effective than conventional synchronous belt drives with respect to reducing noise and transmission error per single pitch of the pulley. However...