Finite Element Simulation of Drill Bit and Bone Thermal Contact During Drilling

2008 ◽  
Author(s):  
Yuan-Kun Tu ◽  
Li-Wen Chen ◽  
Ching-Chieh Huang ◽  
Yung-Chuan Chen ◽  
Hsun-Heng Tsai ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Thermal Contact ◽  
Drill Bit ◽  
Element Simulation

Finite Element Simulation of the Tightening Process of Bolted Joint With a Bolt Heater

2002 ◽  
Vol 124 (4) ◽  
pp. 457-464 ◽  
Author(s):  
Toshimichi Fukuoka ◽  
Quantuo Xu
Keyword(s):  
Finite Element ◽  
Contact Resistance ◽  
Finite Element Simulation ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Numerical Approach ◽  
Numerical Analyses ◽  
Bolted Joint ◽  
Skilled Workers ◽  
Element Simulation

The tightening operation with a bolt heater has advantages surpassing those of other tightening methods. Currently, a bolt heater is mainly applied to tighten huge bolts that cannot be clamped by other means, and the tightening operation is usually supported by the expertise of skilled workers. In this paper, a numerical approach is presented to aim at a broader use of bolt heater technique by elucidating the tightening mechanism. The effects of thermal contact resistance existing around a bolted joint are taken into account for a better accuracy in the numerical analyses. Based on the numerical results obtained, a series guideline to help the tightening operation when performed by less skilled workers is proposed.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Numerical Simulation of Tire Sliding Events Involving Impacts with Holes and Bumps

1986 ◽  
Vol 14 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Y. Nakajima ◽  
J. Padovan
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Full Range ◽  
Arbitrary Geometry ◽  
Operating Environments ◽  
Element Simulation ◽  
Simulation Scheme

Abstract This paper extends the finite element simulation scheme to handle the problem of tires undergoing sliding (skidding) impact into obstructions. Since the inertial characteristics are handled by the algorithm developed, the full range of operating environments can be accommodated. This includes the treatment of impacts with holes and bumps of arbitrary geometry.

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