scholarly journals A Simulation Study on Optimal Design Parameters of 200 V Class Induction Range using Finite Element Method

2007 ◽  
Vol 127 (7) ◽  
pp. 803-808 ◽  
Author(s):  
Masashi Ohchi ◽  
Tatsuya Furukawa
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Simulation Study ◽  
Design Parameters ◽  
Element Method

Vibration characteristics of steering columns with bellows

2001 ◽  
Vol 215 (2) ◽  
pp. 171-178
Author(s):  
K H Kim ◽  
G H Han ◽  
H K Kim
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Vibration Characteristics ◽  
Sensitivity Analyses ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Negative Effects ◽  
Vibration Sensitivity ◽  
Element Method

Bellows can be used as collapse elements for automotive steering columns. The crash performance of the steering column can be significantly improved with the bellows. However, the bending flexibility of the bellows has negative effects on the vibration characteristics. An effort is made to improve the vibration characteristics of steering columns with bellows. To understand the effects of various design parameters on the collapse and vibration, sensitivity analyses are performed by the finite element method using Taguchi's scheme. It is shown that the structure of the upper mounting bracket is the most important parameter affecting the vibration characteristics. An optimal design is proposed for a lower tilt type steering column.

scholarly journals An Optimal Design Method for Compliant Mechanisms

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Ngoc Le Chau ◽  
Ngoc Thoai Tran ◽  
Thanh-Phong Dao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Compliant Mechanisms ◽  
Design Method ◽  
Fitness Function ◽  
Current Method ◽  
Design Parameters ◽  
Optimal Design Method ◽  
Element Method

Compliant mechanisms are crucial parts in precise engineering but modeling techniques are restricted by a high complexity of their mechanical behaviors. Therefore, this paper devotes an optimal design method for compliant mechanisms. The integration method is a hybridization of statistics, finite element method, artificial intelligence, and metaheuristics. In order to demonstrate the superiority of the method, one degree of freedom is considered as a study object. Firstly, numerical datasets are achieved by the finite element method. Subsequently, the main design parameters of the mechanism are identified via analysis of variance. Desirability of both displacement and frequency of the mechanism is determined, and then, they are embedded inside a fuzzy logic system to combine into a single fitness function. Then, the relationship between the fine design variables and the fitness function is modeled using the adaptive network-based fuzzy inference system. Next, the single fitness function is maximized via moth-flame optimization algorithm. The optimal results determined that the frequency is 79.517 Hz and displacement is 1.897 mm. In terms of determining the global optimum solution, the current method is compared with the Taguchi, desirability, and Taguchi-integrated fuzzy methods. The results showed that the current method is better than those methods. Additionally, the devoted method outperforms the other metaheuristic algorithms such as TLBO, Jaya, PSOGSA, SCA, ALO, and LAPO in terms of faster convergence. The result of this study will be considered to apply for multiple-degrees-of-freedom compliant mechanisms in future work.

Optimal Design of Drug-Eluting Stent with Micro Holes Based on Finite Element Method

2018 ◽  
Vol 9 (2) ◽  
pp. 121-126
Author(s):  
Yanfei Zhang ◽  
Jinliang Gong ◽  
Bin Liu ◽  
Xiangkuan Cao ◽  
Zhiwen Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Drug Eluting Stent ◽  
Micro Holes ◽  
Drug Eluting ◽  
Element Method

Deformations and Stresses in Face-Hobbed Spiral Bevel Gears

2011 ◽  
Author(s):  
Vilmos V. Simon
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nodal Point ◽  
Design Parameters ◽  
Element Discretization ◽  
Spiral Bevel Gears ◽  
Bevel Gears ◽  
Tooth Surfaces ◽  
Spiral Bevel ◽  
Element Method

In this study an attempt is made to predict displacements and stresses in face-hobbed spiral bevel gears by using the finite element method. A displacement type finite element method is applied with curved, 20-node isoparametric elements. A method is developed for the automatic finite element discretization of the pinion and the gear. The full theory of the generation of tooth surfaces of face-hobbed spiral bevel gears is applied to determine the nodal point coordinates on tooth surfaces. The boundary conditions for the pinion and the gear are set automatically as well. A computer program was developed to implement the formulation provided above. By using this program the influence of design parameters and load position on tooth deflections and fillet stresses is investigated. On the basis of the results, obtained by performing a big number of computer runs, by using regression analysis and interpolation functions, equations for the calculation of tooth deflections and fillet stresses are derived.

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