Application of Modern Design Method in the Design and Develop Process of Mechanical Product

2014 ◽  
Vol 602-605 ◽  
pp. 189-192
Author(s):  
Ji Ming Huang ◽  
Bing Yi Huang ◽  
Jian Feng Li

This paper introduced the definition of modern design method at first. Then the paper analyzed some typical modern design method such as optimization design, green design, man-machine engineering design, innovative design, industrial molding design, concurrent design, reliability design, finite-element method, robust design method and so on. The paper not only analyzed on the characteristics of them but also analyzed their applicability at the same time, at last the paper analyzed the application of those modem design methods in the design and develop process of mechanical product.

2010 ◽  
Vol 37-38 ◽  
pp. 628-633 ◽  
Author(s):  
Kang Wang ◽  
Xiao Tao Wang ◽  
Min Qu ◽  
Xiao Dong Chen

The mechanical analysis of a novel plywood formwork structure with steel frame was studied with finite element method systematically. By optimizing the parameters of the section shape, node position and the number of formwork heel, a kind of the optimization design scheme was presented. Less building construction materials and better mechanical property was accomplished by the scheme. By contrasting the optimization results with experimental results, the design method is valuable.


2010 ◽  
Vol 34-35 ◽  
pp. 7-12 ◽  
Author(s):  
Shu Xia Sun ◽  
Ming Yan ◽  
Ping Bai ◽  
Li Han

The paper studies on the gear reliability design method using probability finite element method based on response surface and it indicates that the reliability sensibility calculation method of function in response surface can be used when limit state function is unknown. The limit state function established on response function is quadratic polynomial with simple form and it makes the calculation of variance and deviation very convenient, which realizes the simple and easy calculation of reliability sensitivity and largely increases calculation velocity and precision. The method can be applied for general purpose with certain standard, which is easy for programming and accomplishing gear reliability design in a rapid and precise way.


2014 ◽  
Vol 633-634 ◽  
pp. 1285-1288
Author(s):  
Ting Ting Wang ◽  
Feng Qin Zhao ◽  
Chang Jiang Shi ◽  
Fan Yang

For the problem of the design on the main components of backward rotary transplanting mechanism in wide-narrow row planting, finite element method based on SolidWorks Simulation was applied to analyze it. In the analysis, the defects in the design were discovered. By improving these defects, the aim of optimization design was achieved. This analysis and design method can effectively avoid the defects caused by conversion between different softwares, which has higher practical value.


2012 ◽  
Vol 479-481 ◽  
pp. 995-1003
Author(s):  
Guang Hui Li ◽  
Tao Tao Liu ◽  
Li Hua Zhang

In order to rationalize the design of the worm-drive, the fuzzy reliability design method and robust design method were fully applied to develop the new model for fuzzy reliability optimization design of worm-drive with the minimum weight, minimum sliding-velocity, and minimum sensitivity as the objective function. The fuzzy optimization design result of the worm-drive was obtained by compiling MATLAB procedure. Compared with traditional design methods,the center distance was reduced by 33.3%, the sliding speed is reduced by 10.6%.The life of the worm-drive was raised by11.5%,and the wear quantity of the worm-drive was decreased by 0.1%after 100 hours' running.


2012 ◽  
Vol 229-231 ◽  
pp. 613-616
Author(s):  
Yan Jue Gong ◽  
Yuan Yuan Zhang ◽  
Fu Zhao ◽  
Hui Yu Xiang ◽  
Chun Ling Meng ◽  
...  

As an important part of the vertical axis wind turbine, the support structure should have high strength and stiffness. This article adopts finite element method to model a kind of tower structure of the vertical axis wind turbine and carry out static and modal analysis. The static and dynamic characteristic results of tower in this paper provide reference for optimization design the support structure of wind turbine further.


Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1388
Author(s):  
Daniele Oboe ◽  
Luca Colombo ◽  
Claudio Sbarufatti ◽  
Marco Giglio

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.


2015 ◽  
Vol 07 (06) ◽  
pp. 1550085 ◽  
Author(s):  
Z. C. He ◽  
G. Y. Zhang ◽  
L. Deng ◽  
Eric Li ◽  
G. R. Liu

The node-based smoothed finite element method (NS-FEM) proposed recently has shown very good properties in solid mechanics, such as providing much better gradient solutions. In this paper, the topology optimization design of the continuum structures under static load is formulated on the basis of NS-FEM. As the node-based smoothing domain is the sub-unit of assembling stiffness matrix in the NS-FEM, the relative density of node-based smoothing domains serves as design variables. In this formulation, the compliance minimization is considered as an objective function, and the topology optimization model is developed using the solid isotropic material with penalization (SIMP) interpolation scheme. The topology optimization problem is then solved by the optimality criteria (OC) method. Finally, the feasibility and efficiency of the proposed method are illustrated with both 2D and 3D examples that are widely used in the topology optimization design.


2009 ◽  
Vol 149 (1) ◽  
pp. 130-135 ◽  
Author(s):  
Meiling Zhu ◽  
Paul Kirby ◽  
Martin Wacklerle ◽  
Markus Herz ◽  
Martin Richter

ISRN Optics ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Suyong Wu ◽  
Xingwu Long ◽  
Kaiyong Yang

We present a novel fast robust design method of multilayer optical coatings. The sensitivity of optical films to production errors is controlled in the whole optimization design procedure. We derive an analytical calculation model for fast robust design of multilayer optical coatings. We demonstrate its effectiveness by successful application of the robust design method to a neutral beam splitter. It is showed that the novel robust design method owns an inherent fast computation characteristic and the designed film is insensitive to the monitoring thickness errors in deposition process. This method is especially of practical significance to improve the mass production yields and repetitive production of high-quality optical coatings.


2014 ◽  
Vol 39 (10) ◽  
pp. 7229-7239 ◽  
Author(s):  
Sergio Luiz Moni Ribeiro Filho ◽  
Marcelo Oliveira Gomes ◽  
Carlos Henrique Lauro ◽  
Lincoln Cardoso Brandão

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