Structural Optimization Design of Anti-Collision Sealing Cylindrical Rubber Cushion

2012 ◽  
Vol 201-202 ◽  
pp. 894-897
Author(s):  
Jun Liu ◽  
Bao Shou Sun ◽  
Jian Nan Cao

At present, it is inconvenient for use due to huge volume of common inflatable rubber fender. This paper introduces a design of cylindrical rubber sealing cushion which can be applied to various occasions to protect ships, dock and pier facilities. The key of air cushion technique is that it can produce a large displacement to buffer deformation and to reduce the exchange of energy. It plays a role to increase the time of collision, and then reduces the force of collision. Meanwhile, it also has good ability to adapt the tilted contact and it can float on the water surface, etc. This paper makes a feasibility analysis and strength calculation by doing theoretical calculation, and then making a force-test simulation by using ANSYS software, and do some structure optimal design according to the results of finite element analysis.

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4673 ◽  
Author(s):  
Yong-Min You

To obtain accurate optimal design results in electric machines, the finite element analysis (FEA) technique should be used; however, it is time-consuming. In addition, when the design of experiments (DOE) is conducted in the optimal design process, mechanical design, analysis, and post process must be performed for each design point, which requires a significant amount of design cost and time. This study proposes an automated DOE procedure through linkage between an FEA program and optimal design program to perform DOE easily and accurately. Parametric modeling was developed for the FEA model for automation, the files required for automation were generated using the macro function, and the interface between the FEA and optimal design program was established. Shape optimization was performed on permanent magnet synchronous motors (PMSMs) for small electric vehicles to maximize torque while maintaining efficiency, torque ripple, and total harmonic distortion of the back EMF using the built-in automation program. Fifty FEAs were performed for the experimental points selected by optimal Latin hypercube design and their results were analyzed by screening. Eleven metamodels were created for each output variable using the DOE results and root mean squared error tests were conducted to evaluate the predictive performance of the metamodels. The optimization design based on metamodels was conducted using the hybrid metaheuristic algorithm to determine the global optimum. The optimum design results showed that the average torque was improved by 2.5% in comparison to the initial model, while satisfying all constraints. Finally, the optimal design results were verified by FEA. Consequently, it was found that the proposed optimal design method can be useful for improving the performance of PMSM as well as reducing design cost and time.


2010 ◽  
Vol 34-35 ◽  
pp. 1559-1562
Author(s):  
Jun Liu ◽  
Xiao Zhou ◽  
Gang Yi Zhou ◽  
Xin Long Dong

Mold shelf of powder molding press(PMP) is the main load component. Control the deformation of mold shelf is a key problem. In this paper, based on the basic theory of finite element analysis(FEA), the constraints and load conditions of main support parts of mold shelf were simulated and analyzed . ANSYS software optimized the structure of mold shelf. Top width of the stress part increased to 15mm, its height from 80mm down to 50mm. The results showed that the maximum displacement of mold shelf reduced to 0.4740mm, the maximum stress reduced 843.44MPa to 742.38MPa. Load distribution of the mold is more uniform, deformation and displacement also improved. It provides a new method and theoretical basis for optimal design of powder molding shelf.


2011 ◽  
Vol 128-129 ◽  
pp. 1312-1315
Author(s):  
Guo Ping Yang ◽  
Fa Long Zhu ◽  
Wen Long Yin ◽  
Yi Cheng

This paper is primarily focused on finite element analysis and topological optimization of impact plunger and drill rod. Finite element method is an extremely functional, due to which we apply ANSYS software to analyze the stress and strain that impact plunger and drill rod bear in actual working condition and optimize their structure.


2014 ◽  
Vol 526 ◽  
pp. 194-199 ◽  
Author(s):  
Zhi Yong Jiao ◽  
Xi Yang Liu ◽  
Mei Yu Zhang

In order to verify whether the inputting cantilever of bucket-wheel reclaimer will be cracked and plastic deformation, in this paper, with inputting cantilever of modeling and finite element analysis, 3D entity model of inputting cantilever is established by using CATIA software. With the transmitting data interface of ANSYS software, it imports the inputting cantilever model, which is established in the environment CATIA, into ANSYS software. Through the static analysis on the inputting cantilever by the finite element software ANSYS, we can get static deformation diagram and von stress distributing diagram. From the analysis results, we can find the weakest spot according to the displacement cloud chart, and find the stress most centralized spot according to the stress analysis cloud chart, then carry on the intensity examination to it, and make description and mark on the maximum deformation and the maximum stress spot, and put forward the improvement plan to improve the service life. This method is a efficient path for the design and intensity examination of inputting cantilever, and it provides theoretical basis for further optimization design.


2013 ◽  
Vol 706-708 ◽  
pp. 1344-1347
Author(s):  
Lin Gao ◽  
Hong Juan Dong

The force status of pendulum rod support in cooling bed carrying plate device is analyzed. According to the work characteristic of pendulum rod, pendulum rod support model is created by ANSYS software. And static and modal analysis is taken. The analysis results dedicate that the support has bigger comparatively safety coefficient and have some material waste. The improving design program is come up with in order to achieve optimization design.


2012 ◽  
Vol 619 ◽  
pp. 74-77
Author(s):  
Zhi Xin Pu ◽  
Quan Gang Deng

Taking the ZY5600-16-34 hydraulic support as the research object, using Pro/E software to build its shield beam’s three-dimensional model, and use ANSYS software to take finite element analysis on intensity of the shield beam. Then optimize its structure based on this. Through taking new finite element analysis on the new model, the results show that the optimization design is effective to increase the strength of shield beam's damageable parts, to provide a beneficial reference for the shield beam’s design.


2018 ◽  
Vol 55 (4) ◽  
pp. 666-675
Author(s):  
Mihaela Tanase ◽  
Dan Florin Nitoi ◽  
Marina Melescanu Imre ◽  
Dorin Ionescu ◽  
Laura Raducu ◽  
...  

The purpose of this study was to determinate , using the Finite Element Analysis Method, the mechanical stress in a solid body , temporary molar restored with the self-curing GC material. The originality of our study consisted in using an accurate structural model and applying a concentrated force and a uniformly distributed pressure. Molar structure was meshed in a Solid Type 45 and the output data were obtained using the ANSYS software. The practical predictions can be made about the behavior of different restorations materials.


2011 ◽  
Vol 314-316 ◽  
pp. 1218-1221
Author(s):  
Hao Min Huang

Conventional methods of design to be completed ordinary hydraulic transmission gear gearbox design, but for such a non-planet-rule entity, and the deformation of the planet-gear contact stress will have a great impact on the planet gear, it will be very difficult According to conventional design. In this paper, ANSYS software to the situation finite element analysis, the planetary gear to simulate modeling study.


2011 ◽  
Vol 55-57 ◽  
pp. 664-669
Author(s):  
Jin Ning Nie ◽  
Hui Wang ◽  
De Feng Xie

According to the situation that the dual-friction drums on the new type towing machine lack stress analysis when designed, the safety is difficult to test and verify. The pull of wire rope in various positions was derived and calculated, so both compressive stress and tangent friction force generated by the pull of wire rope were calculated. The result made by ANSYS software demonstrates the safety of the left drum which suffers from larger loads, structure improvement measures are put forward for the drum.


2015 ◽  
Vol 1090 ◽  
pp. 233-237
Author(s):  
Ji Jun Miao ◽  
Ri Sheng Long

In order to solve the cracking and poor reliability problems of motor box of Horizontal Roadheader, the static structural FEA (Finite Element Analysis) of cutting arm & motor box of the EBH160 Horizontal Roadheader was conducted, and the stress and strain contours of FEA were obtained. By comparing the calculated results, the safety factor of cutting arm & motor box was 1.36, which provides a reference for the optimal design of cutting arm & motor box.


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