Search
Now showing items 1-8 of 8
Frictional Analysis of MoS2 Coated Ball Bearings: A Three-Dimensional Finite Element Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A brief review of finite element contact and friction theory is presented for low-speed bearing operations. A three-dimensional finite element model is developed to realistically characterize the ...
Parameter Identification of Hysteresis Friction for Coated Ball Bearings Based on Three-Dimensional FEM Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using a three-dimensional finite element model, the hysteresis friction behavior of coated ball bearings is investigated. Ninety-six distinct operating conditions were examined by the finite element ...
Viscoelastic Properties of Soft Tissue by Discrete Model Characterization
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to study the response of the human body to acceleration and force, it is necessary to be able to relate force to deformation in various body tissues. Problems wherein this becomes ...
Using Residual Flexibility for Improved Observation of Reaction Forces in Flexible Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper focuses on developing a full-state observer that can be used to obtain unmeasurable reaction forces in a flexible structure. In the context of modal truncation of a distributed ...
Dynamic Friction Measurements of MoS2 Coated Ball Bearing Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The friction behavior of MoS2 coated bearing surfaces operating under ultra-low-speeds with velocity reversal is investigated. Forty-two sets of exclusively ultra-low-speed operating conditions were ...
Comparison of the Low-Speed Frictional Characteristics of Silicon Nitride and Steel Balls Using Conventional Lubricants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The friction behavior of Si3 N4 ceramic balls operating under ultra-low-speeds with velocity reversal is investigated. Twenty-one sets of exclusively ultra-low-speed operating conditions were examined ...
Evaluation of Ultra-Low-Speed Jitter in Rolling Balls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The frictional resistance generated by a ball bearing, when starting from rest, increases to a free rolling value in a finite amount of time instead of experiencing an instantaneous step ...
The Response of Balls Undergoing Oscillatory Motion: Crossing From Boundary to Mixed Lubrication Regimes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There are many applications where determining the response of a slowly oscillating ball bearing becomes crucial. Many instrument pointing mechanisms, in particular those used for aerospace ...