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Keywords: deformation
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Journal Articles
Article Type: Research Papers
J. Mech. Des. May 2011, 133(5): 051004.
Published Online: June 6, 2011
... and demonstrates that the conjugating tooth profile should be a three-dimensional surface because of the cup deformation. The use of spur gears on both flexspline and circular spline will cause excessive interference and excessive deformation will become necessary to overcome the interference. Since no-load...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. April 2010, 132(4): 044501.
Published Online: April 19, 2010
...Un-Koo Lee; Seong Bae Jang; Seong S. Cheon In this paper, a subframe type fuel tank module was proposed and evaluated to increase the vehicle safety and the design flexibility against rear crash of automotive vehicles. In order to minimize the deformation of the fuel tank during rear crash, crash...
Journal Articles
Article Type: Research Papers
J. Mech. Des. June 2009, 131(6): 061004.
Published Online: April 28, 2009
... deformation analysis, which are strongly coupled. One could rely on standard 3D contact detectors and standard 3D finite element analysis (FEA) to simulate the two steps. However, since snap-fits are slender, 3D FEA tends to be inefficient and slow. On the other hand, one could rely on an explicit 1D beam...
Journal Articles
Article Type: Research Papers
J. Mech. Des. February 2009, 131(2): 021002.
Published Online: January 6, 2009
... of their complicated deformation pattern. The behavior of a bistable compliant mechanism, in general, is highly nonlinear. Using combinations of such nonlinearities to capture the behavior of multistable (more than two stable positions) mechanisms can be quite challenging. To determine multistable behavior, our...
Journal Articles
Article Type: Research Papers
J. Mech. Des. February 2009, 131(2): 021005.
Published Online: January 6, 2009
...Gang-Won Jang; Ho Seong Shim; Yoon Young Kim To find support locations minimizing uneven deformation is an important design issue in a large plate under self-weight. During the imprinting process of LCD panels, for instance, a large variation in the deflection of an LCD panel due to its self-weight...
Journal Articles
Article Type: Research Papers
J. Mech. Des. June 2008, 130(6): 062303.
Published Online: April 15, 2008
... multilayer wide curves. The deformation and performance of multimaterial compliant mechanisms are evaluated by the isoparametric degenerate-continuum nonlinear finite element procedure. The problem-dependent objectives are optimized, and the practical constraints are imposed during the optimization process...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. April 2007, 129(4): 459–463.
Published Online: March 29, 2006
... of the deformability of the supporting structures and the nonuniformity of their flexibility on the loading of the rolling elements in the two-row bearing. The use of formulas which do not take into account the flexibility of the supporting structures to determine the distribution of the load among the rolling...
Journal Articles
Article Type: Research Papers
J. Mech. Des. January 2007, 129(1): 95–106.
Published Online: February 22, 2006
...V. Abousleiman; P. Velex; S. Becquerelle A model is presented which enables the simulation of the three-dimensional static and dynamic behavior of planetary/epicyclic spur and helical gears with deformable parts. The contributions of the deflections of the ring gear and the carrier are introduced...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2006, 128(6): 1298–1306.
Published Online: December 28, 2005
... criterion is suggested, based on characteristics of the load-deformation curve of the compliant structure. A genetic algorithm is used to find candidate solutions. A numerical implementation of this methodology is discussed and illustrated using simple examples. 01 08 2005 28 12 2005...
Journal Articles
Article Type: Research Papers
J. Mech. Des. March 2006, 128(2): 479–493.
Published Online: June 19, 2005
... improvement over currently available analytical design equations. The model captures the effect of a snap-fit’s catch in causing contact forces to be offset from the beam’s neutral axis. Beam rotation, influence of axial force, and moment components on beam deformation are also incorporated by formulating...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. November 2004, 126(6): 1082–1088.
Published Online: February 14, 2005
...M. Guingand; J. P. de Vaujany; Y. Icard This paper describes a model for analyzing external and internal helical gears. The finite prism method is used to study the elastic behavior of the structure. Contact deformations are also included in the model. Load sharing, pressure distribution, meshing...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2005, 127(5): 1014–1020.
Published Online: January 14, 2005
..., and Adaptive and Interactive Modeling System. A real-world frontal impact design problem is used as an example, which is a complex, highly nonlinear, transient, dynamic, large deformation finite element model. To study the accuracy of the metamodel, the optimal Latin Hypercube Sampling method is used...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. July 2004, 126(4): 721–728.
Published Online: August 12, 2004
...Ouqi Zhang; Jason A. Poirier The conventional theory of bolted joints adopts equivalent cylinders, cones or spheres for compression members. In this model, the member deformation is determined by the member stiffness that remains unchanged whether the external load is present. In fact, the external...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. March 2004, 126(2): 370–374.
Published Online: May 5, 2004
... bearings mechanical contact deformation The analytical method taking the centrifugal force and the angular misalignment into account is developed for the contact mechanisms of a ball bearing. In this method, the misalignment, the deformations created in the axial and radial directions...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2003, 125(3): 452–463.
Published Online: September 4, 2003
... of rotation is defined as the angle between OP 0 ¯ and OP 1 ¯ . OP 0 ¯ represents the hinge without deformation, whereas OP 1 ¯ represents the deformed hinge. • The front door is a rigid body: Deformation of the door due to the external loading...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. June 2003, 125(2): 342–350.
Published Online: June 11, 2003
... forces, a local coordinate system is employed to define the element deformations. The use of the local element coordinate system leads, as demonstrated in previous publications 5 10 13 , to a more complex expression for the elastic forces. This approach is not employed in this investigation...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. June 2002, 124(2): 213–222.
Published Online: May 16, 2002
...Huifang Li; Dariusz Ceglarek One of the most critical issues in the material handling of compliant objects is excessive part deformation. The deformation of compliant sheet metal parts during the handling process can significantly impact both part dimensional quality and production rate. Increasing...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. December 2000, 122(4): 395–402.
Published Online: June 1, 2000
... in the snap-fit feature alone and that the base-part can be considered to be infinitely rigid. To arrive at a more accurate estimation of the feature’s performance, it is necessary to account for the influence of base-part flexibility. Lee, Dubin & Jones 29 have shown that wall deformation is the most...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2001, 123(3): 456–463.
Published Online: June 1, 2000
... to the make-up torque and to axial tensile loads, and then to foresee the stress state of RSCs in limit working conditions (that is to say limit load combination, in terms of shoulder separation or yielding of the RSC elements). In defining the procedure for the evaluation of the stress and deformation...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2001, 123(3): 408–415.
Published Online: May 1, 2000
... transmission planetary unit. The model considers each gear as deformable bodies and meshes them to predict loads, stresses and deformations of the gears. Actual support and spline conditions are included in the model. The rim thickness of the internal gear is varied relative to the tooth height and gear...