On Rolling Contact (1st Report)

Research Report RIKEN-BMC #003 Whole Body Manipulation Part III: On The Rolling Contact Problem

1 2-link whole arm manipulation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Zero-input motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Evolution of φ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Trajectory tracking control in the case of rolling contact with L...

Numerical Computation of Rolling Resistance Based on the Result of Tire/Road Static Contact Analysis

Among various dissipating mechanisms, the viscoelastic effect of rubber material on creation of rolling resistance is responsible for 10-33% dissipation of supplied power at the tire/road interaction surface. So, evaluating this kind of loss is very essential in any analysis concerned with improving the fuel consumption of vehicles and resultantly energy savage. Hysteretic loss is a fraction of...

Rolling resistance moment of microspheres on surfaces: contact measurements

Using contact measurements, experimental evidence was obtained for the existence of the rolling resistance moment. The critical rolling distance prior to detachment is reported. Previously it has been argued that the critical rolling distance should be related to the lattice size and/or the molecular length of the particle and surface materials. However, there has been no theoretical prediction...

ROLLING CONTACT ORTHOPAEDIC JOINT DESIGN by

Arthroplasty, the practice of rebuilding diseased biological joints using engineering materials, is often used to treat severe arthritis of the knee and hip. Prosthetic joints have been created in a “biomimetic” manner to reconstruct the shape of the biological joint. We are at a disadvantage, however, in that metals and polymers used to replace bone and articular cartilage often wear out too s...

Rolling Contact Fatigue in Ultra High Vacuum