Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Hertz Contact"”.
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Elliptical Rolling Link Toggle Mechanisms for Passive Force Closures with Self-Adjustment
This thesis presents elliptical rolling contact joints as an alternative to circular rolling contact and conventional revolute joints where high quality force transmission "low friction and backlash" with variable output are desired. Parameters specific to the joint and its position are developed …
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Elastically Housed Kinematic Couplings for InterchangeableElectric Vehicle Batteries
… is critical to maintain sufficient electrical contact while avoiding arcing. Kinematic couplings can provide enough contact area through Hertz line contact for a low resistance electrical contact, and Hertz stresses under loads are reasonable for conductive materials to bear without yield for …
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Nonlinear mixed finite element analysis for contact problems by a penalty constraint technique
… variational principle is developed for planar contact stress analysis. The formulation is based on the updated Lagrangian approach and accounts for geometric nonlinearity. In the mixed model, both displacements and stresses are approximated independently and this approach has in general been …
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Finite Element Analysis of Insulated Railroad Joints
… wheel load that is applied to the rail using Hertz contact theory. Parametric studies are performed by varying the tie width, joint bar length, and joint bar dimensions. Two different wheel load locations are also investigated: centered about the end post, and halfway between the tie under the …
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Non-Linear Finite Element Method Simulation and Modeling of the Cold and Hot Rolling Processes
… resulting from the pressure-dependent thermal contact resistance between the steel slab and the steel rolls. The model predicts the equivalent stress, equivalent plastic strain, maximum strain rate, equivalent total strain, slab temperature increase, increase in roll temperature, strip length …
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The AFM Study of Ovarian Cell Structural Mechanics in the Progression of Cancer
… cancer. Material properties were extracted via Hertz model contact theory. The experimental results illustrate that the elasticity of late stage MOSE cells were 50% less than that of the early stage. Cell viscosity also decreased by 65% from early to late stage, indicating that the increase in …