Modeling and Simulation with Finite Element Method in Car Seats

2011 ◽  
Vol 299-300 ◽  
pp. 1231-1234
Author(s):  
Jian Li Wang ◽  
Yu Guang Li ◽  
Shu Fen Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Modeling And Simulation ◽  
Computer Aided Engineering ◽  
Solid Model ◽  
Engineering Model ◽  
Car Seats ◽  
Car Seat ◽  
Computer Aided ◽  
Definition Of

The 3-D solid model with the software of Pro/Engineer was established. The computer aided engineering model of car seat with the methods “solid elements” was established. The elasticity of seat with ANSYS was calculated. Compared with the “force—distortion” curve of seat test, we examined the validity of modeling and the definition of materials.

scholarly journals Agustin de Betancourt’s Mechanical Dredger in the Port of Kronstadt: Analysis through Computer-Aided Engineering

2018 ◽  
Vol 8 (8) ◽  
pp. 1338 ◽  
Author(s):  
José Rojas-Sola ◽  
Eduardo De la Morena-De la Fuente
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
3D Model ◽  
Russian Empire ◽  
Computer Aided Engineering ◽  
Operating Conditions ◽  
The Finite Element Method ◽  
Safety Coefficient ◽  
Computer Aided ◽  
The Russian Empire

This article analyzes the first self-propelled floating dredging machine designed and executed by Agustín de Betancourt in 1810 to dredge the port of Kronstadt (Russia). With this objective, a study of computer-aided engineering (CAE) has been carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite element method, of the 3D model which is reliable under operating conditions. The results have shown that the system of inertia drums proposed by Betancourt manages to dissipate the tensions between the different elements, locating the highest stresses in the links of the bucket rosary, specifically at the point of contact between links. Similarly, the maximum displacements and the greatest deformations (always associated with these points of greater stress), are far from reaching the limits of breakage of the material used in its construction, as well as the safety coefficient of the invention, confirming that the mechanism was oversized, as was generally the case at the time. This analysis highlights the talent of the Spanish engineer and his mastery of mechanics, in an invention, the first of its kind worldwide, which served the Russian Empire for many years.

Analysis of Bending Ability of Soft Pneu-nets Actuators for Soft Robotics

2020 ◽  
Vol 14 ◽  
Author(s):  
Yazhou Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Computer Aided Engineering ◽  
Air Pressure ◽  
Soft Robotics ◽  
Material Parameters ◽  
Computer Aided ◽  
Standard Finite Element Method ◽  
The Difference ◽  
The Relationship

Background: There has been an increasing interest in the soft pneumatic networks (also referred to as pneu-nets) actuators for soft robotics due to their innately softness, ease of fabrication and high customizability. More and more structures of the soft pneu-nets actuators are reported in various relevant patents and papers. Bending ability of soft pneu-nets actuator is one of key characterizing performance. It is characterized as a function of input air pressure as well as geometrical and material parameters, and influenced by the air pressures and design angle. Objective: In this paper, a new structure soft pneu-nets actuators (with different chambers morphology) was developed. The goal of this paper is to analyze the influences of the air pressures and design angle on the bending ability of the soft pneu-nets actuators with new structure. Method: Firstly, a new structure of soft pneu-nets (adjusting chamber’s shape), based on the soft pneu-nets architecture described previously was developed. Then, the soft pneu-nets actuators were treated with a standard Finite Element Method (FEM) using the Abaqus 6.14 Computer Aided Engineering (CAE) package. Several soft pneu-nets actuators with various design angle were analyzed to investigate the influence of the design angle on the bending ability. In order to investigate the effect of these parameters, the relationship between the angle of bending and these parameters were conducted.Thirdly, the influence of chambers morphology on bending ability of soft pneu-nets actuators could be assessed. Results: When the air pressure P is under 13.5 kPa, the differences of angle of bending under same design angle are not evident, but when the air pressure P is over 13.5 kPa, the differences of angle of bending at same design angle increase; At the same air pressure P, when the air pressure P is under 13.5 kPa, the difference of the angle of the bending between different design angle is less, The effect of gravity is greater than that of the air pressures P. When the air pressure P is over 13.5 kPa, however, the design angle shows more influential on the angle of the bending. Conclusion: The angle of bending increases with the increase of the air pressures P; the chambers with a bigger design angle (thinner inside walls) enabled greater bending at given air pressures P.

Metal Forming and the Finite-Element Method

1989 ◽  
Author(s):  
Shiro Kobayashi ◽  
Soo-Ik Oh ◽  
Taylan Altan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Metal Forming ◽  
Computer Aided Design ◽  
The Finite Element Method ◽  
Forming Technology ◽  
Computer Aided ◽  
Deformation Mechanics ◽  
Aided Design ◽  
Element Method

The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

scholarly journals Shape Sensing of a Complex Aeronautical Structure with Inverse Finite Element Method

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1388
Author(s):  
Daniele Oboe ◽  
Luca Colombo ◽  
Claudio Sbarufatti ◽  
Marco Giglio
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Boundary Conditions ◽  
Strain Field ◽  
Element Analysis ◽  
Inverse Finite Element Method ◽  
Shape Sensing ◽  
Definition Of ◽  
High Level ◽  
Element Method

The inverse Finite Element Method (iFEM) is receiving more attention for shape sensing due to its independence from the material properties and the external load. However, a proper definition of the model geometry with its boundary conditions is required, together with the acquisition of the structure’s strain field with optimized sensor networks. The iFEM model definition is not trivial in the case of complex structures, in particular, if sensors are not applied on the whole structure allowing just a partial definition of the input strain field. To overcome this issue, this research proposes a simplified iFEM model in which the geometrical complexity is reduced and boundary conditions are tuned with the superimposition of the effects to behave as the real structure. The procedure is assessed for a complex aeronautical structure, where the reference displacement field is first computed in a numerical framework with input strains coming from a direct finite element analysis, confirming the effectiveness of the iFEM based on a simplified geometry. Finally, the model is fed with experimentally acquired strain measurements and the performance of the method is assessed in presence of a high level of uncertainty.

Definition of the Temperature and Heat Flux in Micromilling of Hardened Steel Using the Finite Element Method

2014 ◽  
Vol 39 (10) ◽  
pp. 7229-7239 ◽  
Author(s):  
Sergio Luiz Moni Ribeiro Filho ◽  
Marcelo Oliveira Gomes ◽  
Carlos Henrique Lauro ◽  
Lincoln Cardoso Brandão
Keyword(s):  
Finite Element Method ◽  
Heat Flux ◽  
Finite Element ◽  
Hardened Steel ◽  
The Finite Element Method ◽  
Definition Of ◽  
Element Method

scholarly journals INFORMATIZATION OF CONSTRUCTION MANAGEMENT AS A BASIS FOR PREVENTING MAN-MADE ACCIDENTS

2021 ◽  
Vol 4 (4) ◽  
pp. 11-31
Author(s):  
S. Koryagina
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
The Finite Element Method ◽  
Calculation Results ◽  
Definition Of ◽  
Deep Pits ◽  
Geotechnical Problems ◽  
Seismic Impacts ◽  
Base Structure ◽  
Element Method

the article presents the principles and algorithms of the finite element method in solving geotechnical prob-lems taking into account seismic impacts for determining the stress-strain state of structures and slope stabil-ity, implemented in the Midas GTS NX software package. GTS NX allows you to perform calculations of various types of geotechnical problems and solve complex geotechnical problems in a single software envi-ronment. GTS NX covers the entire range of engineering and geotechnical projects, including calculations of the "base-structure" system, deep pits with various mounting options, tunnels of complex shape, consolida-tion and filtration calculations, as well as calculations for dynamic actions and stability calculations. At the same time, all types of calculations in GTS NX can be performed both in 2D and in 3D. The author does not claim to be the author of the finite element method, but he cannot do without pointing out the basic equa-tions, as this affects the definition of the boundaries of use, the formulation of algorithms for constructing calculation schemes and the analysis of calculation results.

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