Co-registration of pre- and post-stent intravascular OCT images for validation of finite element model simulation of stent expansion

2020 ◽  
Author(s):  
Yazan Gharaibeh ◽  
Juhwan Lee ◽  
David Prabhu ◽  
Pengfei Dong ◽  
Vladislav Zimin ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Simulation ◽  
Element Model ◽  
Stent Expansion ◽  
Finite Element Model Simulation

Finite element model-simulation-based characterization of a magnetostrictive gyrosensor

2010 ◽  
Vol 107 (9) ◽  
pp. 09E705 ◽  
Author(s):  
U. Marschner ◽  
F. Graham ◽  
C. Mudivarthi ◽  
J.-H. Yoo ◽  
H. Neubert ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Simulation ◽  
Element Model ◽  
Simulation Based ◽  
Finite Element Model Simulation

Finite element model simulation of hot forging of seamless elbow fittings

2005 ◽  
Vol 219 (2) ◽  
pp. 85-90 ◽  
Author(s):  
E Salas-Zamarripa ◽  
M P Guerrero-Mata ◽  
R Colás ◽  
J Martínez
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Simulation ◽  
Hot Forging ◽  
Element Model ◽  
Raw Material ◽  
Tooling Design ◽  
Critical Characteristics ◽  
Software Code ◽  
Hot Forging Process

This work presents the implementation of the hot-forging process of seamless elbow fittings into a finite element model (FEM) developed with the aid of a commercial software code. The strain gradients predicted by the FEM were compared with the strain distributions computed by a visioplastic analysis. Measurements made on forged elbows are used to validate the predictions of the FEM. Once the validation was successful, the FEM is used to evaluate the effect that the tooling design exerts on the final dimensions and characteristics of formed elbows; this was done by changing the design of the tooling (mandrel). Two critical characteristics are required in forged elbows; these are consistency in wall thickness and length of the external arc, as wall consistency is directly associated with product quality, whereas control on the length contributes to savings in raw material. Results found by the FEM allows the conclusion that these characteristics are related to each other.

Dynamic Analysis and Experiment of Beamlike Space Deployable Lattice Truss

2011 ◽  
Vol 199-200 ◽  
pp. 1273-1280
Author(s):  
Hong Wei Guo ◽  
Rong Qiang Liu ◽  
Zong Quan Deng
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Continuum Model ◽  
Model Simulation ◽  
Element Model ◽  
Mode Shapes ◽  
Equivalent Continuum Model ◽  
Simulation Results ◽  
Equivalent Continuum ◽  
The Finite Element Model

The dynamic equivalent continuum model of beamlike space deployable lattice truss which is repetition of the basic truss bay is established based on the energy equivalence. The finite element model of the lattice truss is also developed. Free vibration frequencies and mode shapes are calculated and simulated based on equivalent continuum model and discrete finite element model. The analytical solutions calculated by equivalent continuum model match well with the finite element model simulation results. A prototype of deployable lattice truss consist of 20 truss bays is manufactured. The dynamic response of lattice truss with different truss bays are tested by dynamic vibration experiment, and natural frequencies of lattice truss with different length are obtained from acceleration response curves. The experiment results are compared with simulation results which verifies that the correctness of finite element model, which also validate the effectiveness of equivalent continuum model indirectly.

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