scholarly journals Analysis of the Dynamic Behavior of the Inner Hair Cell Stereocilia by the Finite Element Method

2006 ◽  
Vol 49 (3) ◽  
pp. 828-836 ◽  
Author(s):  
Toshihiro MATSUI ◽  
Chihiro NAKAJIMA ◽  
Yuichi YAMAMOTO ◽  
Masayoshi ANDOH ◽  
Koji IIDA ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Hair Cell ◽  
Dynamic Behavior ◽  
The Finite Element Method ◽  
Inner Hair Cell ◽  
Element Method

scholarly journals Simulating the dynamic behavior of Douglas-fir trees under applied loads by the finite element method

2008 ◽  
Vol 28 (1) ◽  
pp. 75-83 ◽  
Author(s):  
J. R. Moore ◽  
D. A. Maguire
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Douglas Fir ◽  
The Finite Element Method ◽  
Element Method

Modeling the Flexural Dynamic Behavior of Axially Moving Continua by Using the Finite Element Method

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Andrea Tonoli ◽  
Enrico Zenerino ◽  
Nicola Amati
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Analytical Models ◽  
Mode Shapes ◽  
Lateral Motion ◽  
The Finite Element Method ◽  
Correct Operation ◽  
Power Transmission Belts ◽  
Element Method

Mechanical systems including conveyor belts, band saw blades, and power transmission belts are influenced by the lateral motion of the moving structure. This phenomenon was studied in the literature both using the theory of the continuous linear and nonlinear systems and following the multibody technique. The subject is studied by using the finite element method (FEM) validated with reference to the analytical models described in the literature. The contributions of the Coriolis forces, the negative stiffness linked to the transport speed, and the bending stiffness due to the transverse moment of inertia are discussed. The dynamic behavior of a prototypical belt transmission layout with two fixed pulleys and an automatic tensioner is then analyzed. The results show the effect of the transport speed on the reduction of the flexural natural frequencies of the mode shapes strictly related to the lateral motion of the belt span and evidence the design strategy that needs to be followed for a correct operation of the whole system.

scholarly journals DYNAMIC MODELING OF A SINGLE-LINK FLEXIBLE MANIPULATOR ROBOT WITH TRANSLATIONAL AND ROTATIONAL MOTIONS

2020 ◽  
Vol 21 (1) ◽  
pp. 228-239
Author(s):  
Dermawan Dermawan ◽  
Hammada Abbas ◽  
Rafiuddin Syam ◽  
Zulkifli Djafar ◽  
Abdul Kadir Muhammad
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Free Vibration ◽  
Dynamic Behavior ◽  
Translational Motion ◽  
Flexible Manipulator ◽  
The Finite Element Method ◽  
Single Link ◽  
Rotational Motions ◽  
Element Method

The flexible manipulator is widely used in space robots, robot arm, and manufacturing industries that produce micro-scale products. This study aims to formulate the equation of motion of a flexible single-link manipulator system that moves translationally and rotationally and to develop computational codes with finite element methods in performing dynamic simulation on the vibration of the flexible manipulator system. The system of the single-link flexible manipulator (SLFM) consists of the aluminum beam as a flexible link, clamp part to hold the link, DC motor to rotate drive shaft, a trajectory to transfer link in translational motion, and servo motor to rotate link. Computational codes in time history response (THR) and Fast Fourier Transform (FFT) processing were developed to identify the dynamic behavior of the link. The finite element-method and Newmark-beta are used in simulating the SLFM. Simulation using the finite element method has displayed dynamic behavior through a graph of FFT on free vibration and THR graph on forced vibration by the excitation force due to the translational and rotational motions of the system. In the simulation of free vibration, the natural frequency of the system is 8.3 [Hz].

Introduction of Mass Points Into the Finite Element Method for the Dynamic Behavior Modeling of Rotating Machine

2012 ◽  
Author(s):  
Mourad Dougdag ◽  
Mohammed Ouali
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Simulation Software ◽  
Behavior Modeling ◽  
The Finite Element Method ◽  
Rotating Machine ◽  
Time Motion ◽  
Calculation Results ◽  
Element Method

The dynamic modeling of the rotating machines system is required to understand their dynamic behavior and the associated vibration problems. Fortunately, this modeling has seen a great development, since the use of Timoshenko or Euler-Bernoulli beam, followed by the Jeffcott and Laval rotor until using fine and complex techniques these days. Unfortunately, this development remains still insufficient to describe in a realistic way the dynamic behavior, in particular the rotor. Nowadays, the using of the finite element method, which is considered as the powerful numerical tool, gave a great help. This method can model as real as possible the phenomena that influence the rotor behavior, but this tool remains inapplicable to describe its behavior when it undergoes at the same time motion, deformations and the faults effects. To resolve these problems, a number of mathematical artifices are used, but, these methods are some times very difficult or are too complex and the result obtained is not always as good as it hopes. In fact, the deformed rotor resolution method is reduced to a modal solution, which does not show the real deformations during time in many cases. In order to simplify the resolution and to show rotor movement with deformation under faults effects, a method is proposed to allow a better approach of this problem. This method is based on subdividing the structure to mass-point sections that make possible to consider the rotational motion with deformations of the rotors. In this work, the above method is implemented on engineering simulation software dedicated for rotordynamics, and the calculation results are validated against experimental data of fault simulations in rotors as presented in the following sections of this paper.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

Contact modelling by the finite element method : Application to the piezoelectric motor

1999 ◽  
Vol 09 (PR9) ◽  
pp. Pr9-217-Pr9-226
Author(s):  
H. Ouazzani Touhami ◽  
J. C. Debus ◽  
L. Buchaillot
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Piezoelectric Motor ◽  
The Finite Element Method ◽  
Contact Modelling ◽  
Element Method
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