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Search Results: 1 - 10 of 1961 matches for " FEA-ANSYS 11 "
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Parametric Study of Bonded, Riveted and Hybrid Composite Joints Using FEA
K. Mohamed Bak,K. Prasanna Venkatesn,K. Kalai Chelvan
Journal of Applied Sciences , 2012,
Abstract: The composite structural members are highly used in the following applications such as aerospace, automobiles, robotic arms, architecture etc., has attracted extensive attention in the past decades. One of the important issues in the composite technology is the repairing of aging of aircraft structures. In such applications and also for joining various composite parts together, they are fastened together either using adhesives or mechanical fasteners. Modeling and static analysis of 3-D models of the joints (bonded, riveted and hybrid) were carried out using ANSYS 11 FEA software. The results were interpreted in terms of Von Mises stress. A parametric study was also conducted to compare the performance of the hybrid joint with varying adherent thickness, adhesive thickness and overlap length. To utilize the full potential of composite materials as structural elements, the strength and stress distribution of these joints must be understood. ANSYS FEA tool has been performed to investigate the stress distribution characteristics of various configurations of single lap joint. This study was focused on the analysis of stress distribution in three prominent joining methods namely, bonded, riveted and hybrid joints. FEA is used to study the stress distribution in the members involved under various design conditions and various joints failure criteria.
Design OF Flexure Bearing For Linear Compressor By Optimization Procedure Using FEA
Saurabh Malpani,Yogesh Yenarkar,Dr. Suhas Deshmukh,S P Tak
International Journal of Engineering Science and Technology , 2012,
Abstract: Bearing are used to allow the relative motion between two surfaces. A shaft has to rotate about its casing or a piston has to slide about the cylinder. Both requires relative motion to happened least rictional losses. The flexural bearing however ,offers a different approach in supporting the bearing surfaces. The elements of bearing surfaces are deformed on application of load to one of the surfaces, allowing the relative motion between the two surfaces on removal of the load ,the surfaces go back to their original position subjected tocondition that caused deformation of the bearing element due to pplied load is within the limit of elasticity. This eliminates the wear ,vibration and frictional losses. However ,the deformation has to be limited. The precision and micro machining applications and some medical applications very low relative motion. Hence, flexural bearing in this kind of application is a better. The present work is specific to the typical flexure bearing used in linear compressor. Since the flexural bearing designed procedure is not available, this paper proposes to the FEM as a tool to find the axial stiffness thatwould be offered by a typical flexure used in the linear compressor application for cryocooler. The cryocooler has a linear compressor use for compressing a gas with a typical displacement of 5 mm. The typical design has the flexural bearing with spiral cuts in the flexures. These spiral cuts allows each of the flexure to move itselfaxially on application of load in the axial direction. There are two states of flexures called stacks on either side of linear motor supporting a piston rod which moves the piston either side i.e. back and forth in gas displacer. As mentioned typical displacement of the piston is 5mm causing each of the flexure to get deformed by same amount. Since there is no any standard method available for alculating axial stiffness of bearing ,we haveconsider an example of disc.
Pro/Engineer与ANSYS进行零件有限元分析的差异研究
The Difference between Pro/Engineer and ANSYS in FEA
 [PDF]

马粉粉, 崔亚辉, 王宏江
Mechanical Engineering and Technology (MET) , 2015, DOI: 10.12677/MET.2015.44028
Abstract:
为了了解零部件应力的分布与变形情况,通过有限元分析技术可以仿真模拟零件在相应载荷和约束下所对应的变形,本文分别利用两种不同软件Pro/Engineer和ANSYS对零件进行静力学有限元分析,ANSYS采用有限元分析,不同的网格划分对结果影响很大,Pro/E则采用几何单元网格划分,所求应力比ANSYS所求应力略大,比较结果,分析原因以得出在确定条件下选取更优的方法求解零部件的应力分布与变形。
To get the stress distribution and deformation of mechanical parts, we can imitate the stress and deformation under the load and restraint by FEA. This paper does static analysis for parts by using Pro/Engineer and ANSYS. Different meshes will affect the result seriously, because FEA is used in ANSYS, but GEA is used in Pro/E. As a result, the stress in Pro/E is little bigger than in ANSYS. The more suitable method for solving the stress and deformation under some condition is gotten by comparing the two results and analyzing them.
Calculation of hybrid joints used in modern aerospace structures
Marcel STERE,Daniela BARAN
INCAS Bulletin , 2011, DOI: 10.13111/2066-8201.2011.3.4.15
Abstract: The state – of - the art of aeronautical structures show that parts are manufactured and subsequently assembled with the use of fasteners and/ or bonding. Adhesive bonding is a key technology to low weight, high fatigue resistance, robustness and an attractive design for cost structures.The paper results resolve significant problems for two groups of end-users:1) for the aerospace design office: a robust procedure for the design of the hybrid joint structural components;2) for the aeronautical repair centres: a useful procedure for structural design and analysis with significant cost savings.
NUMERICAL SIMULATION ON BENDING-RESISTANCE OF REINFORCED CONCRETE BEAMS
钢筋混凝土梁抗弯性能的数值模拟

ZHAO Zhiping,
赵志平

力学与实践 , 2007,
Abstract: The bending resistance function of a reinforced concrete beam is simulated by using ANSYS 10.0 software.The modeling of the reinforced concrete beam is three-dimensional.The simulation includes critical loads,deflection,stress distribution,movement of neutral axis and so on.The yield load and the ultimate load are found to agree with the actual loads.The method may be used to simulate the load capacity of RC beams (slabs).
基于ANSYS/LS-DYNA的叶蜡石传压性能的有限元分析
李瑞,马红安,尹斌华,韩奇钢,刘万强,贾晓鹏
吉林大学学报(工学版) , 2008,
Abstract: 利用有限元程序ANSYS/LSDYNA对六面顶压机加压方式下(压力范围在5.7GPa以内)传压介质叶蜡石的形变过程进行了模拟,并在RMT150B型岩石力学伺服控制系统上测定了叶蜡石的弹塑性力学参数。给出了叶蜡石内部压力分布的数值分析结果,考察了焙烧温度对叶蜡石传压性能的影响。本研究结果对高温高压合成金刚石等超硬材料的传压介质材料的选取以及合成工艺的优化等方面具有重要的参考价值。
Design and Implementation of Differential Agitators to Maximize Agitating Performance
International Journal of Mechanics and Applications , 2012, DOI: 10.5923/j.mechanics.20120206.01
Abstract: This research is to design and implement a new kind of agitators called differential agitator. The Differential Agitator is an electro- mechanic set consists of two shafts. The first shaft is the bearing axis while the second shaft is the axis of the quartet upper bearing impellers group and the triple lower group which are called as agitating group. The agitating group is located inside a cylindrical container equipped especially to contain square directors for the liquid entrance and square directors called fixing group for the liquid exit. The fixing group is installed containing the agitating group inside any tank whether from upper or lower position. The agitating process occurs through the agitating group bearing causing a lower pressure over the upper group leading to withdrawing the liquid from the square directors of the liquid entering and consequently the liquid moves to the denser place under the quartet upper group. Then, the liquid moves to the so high pressure area under the agitating group causing the liquid to exit from the square directors in the bottom of the container. For improving efficiency, parametric study and shape optimization has been carried out. A numerical analysis, manufacturing and laboratory experiments were conducted to design and implement the differential agitator. Knowing the material prosperities and the loading conditions, the FEM using ANSYS11 was used to get the optimum design of the geometrical parameters of the differential agitator elements while the experimental test was performed to validate the advantages of the differential agitators to give a high agitation performance of lime in the water as an example. In addition, the experimental work has been done to express the internal container shape in the agitation efficiency. The study ended up with conclusions to maximize agitator performance and optimize the geometrical parameters to be used for manufacturing the differential agitator.
Finite Element Analysis (FEA) and Thermal Gradient of a Solid Rectangular Fin with Embossing’s for Aerospace Applications  [PDF]
Joel Hemanth, K. B. Yogesh
Advances in Aerospace Science and Technology (AAST) , 2018, DOI: 10.4236/aast.2018.33004
Abstract:
Fins are the extended surfaces through which heat transfer takes place by conduction and convection to keep the base surface cool. Fins of various configurations are presently used ranging from automobile engines to cooling of chip in a computer. Fins used presently are solid with different shapes but in the present research such solid fins are compared with solid fins having maximum of 10 numbers of embossing’s that further increases the surface area for maximum heat transfer. Importance in this research is given to variation of temperature along the length of the fins which in turn gives rate of heat transfer. Thus this research is under taken to increase the efficiency of fins (by extracting heat from the base surface) which is highly demanded today for air cooled engines, compressors, refrigerators etc. In the present research, SOLID70 element and SURF152 elements are used for FE analysis. Methodology involves 3D rectangular fin modelling and meshing, creation of surf elements for the modeling, applying the boundary conditions and source temperature, applying the material property (aluminum) to obtain the steady state thermal contours. FEA results are finally compared with analytic and experimental values for validity. In the present research, a solid rectangular aluminum fin and the same rectangular fin with 2, 4, 8 and 10 embossing’s were compared through finite element analysis for its temperature distribution along the length. FEA analysis of the present research showed that fins having embossing’s were more efficient compared to that a simple solid fin. Hence it is concluded from the present research that embossing’s at preferred locations further increases the rate of heat transfer. From the present analysis it is concluded that the mathematical and FEA for a solid rectangular fin without embossing’s are converging within ±1.2°C and rectangular fin with 10 embossing’s is converging within ±1.4°C and hence the validity.
Design Modification for Failed Grill Bracket using Finite Element Analysis
K. S. Kulkarni,Dr.(Mrs.)R. S. Bindu
International Journal of Recent Technology and Engineering , 2013,
Abstract: Grill is a part placed on vehicle located in front of the Engine cooling module by means of bracket. The purpose of the Grill is to protect the cooling module from front impact and at the same time provide appropriate aesthetic value to the vehicle. This report presents the failure analysis of grill bracket of Engine cooling module of a Truck using Finite Element Analysis. The Grill bracket has failed in the field before warranty period so it has to be replaced with new one. Replacing old bracket means economic loss to the company. The Failure of this Grill bracket is analysed using Finite Element Analysis. 3 D models were created using Pro –E CAD softwares and Finite element analysis was done using Medina and Permas softwares. After doing Finite Element Analysis it was observed that high stresses were coming at failure location on the Grill bracket. The high stresses were mainly observed due to accelerations loads. Several proposals for alternate designs were created considering the packaging data, availability of the standard materials and manufacturing feasibility. These alternate designs were again checked by finite element analysis. The most optimized design was finalized through this process. The finalized design showed 60% lower stress values at failure location compared to current design. New proposed design was found to pass the given warranty period (100000 miles). Thus Finite element analysis proved to be very suitable tool for the situation where quick solution is expected.
Finite Element Analysis of Dynamic Damper for CV Joint  [PDF]
Rahul N. Yerrawar, Vinod B. Tungikar, Shravan H. Gawande
Energy and Power Engineering (EPE) , 2012, DOI: 10.4236/epe.2012.44033
Abstract: Constant Velocity [CV] Joints are one of the most important components of front wheel drive axles. It is subjected to various stresses such as bending stress, shear stress and bearing stress. Apart from these stresses, it is also subjected to vibrations, due to out of balance tire or wheel and an out of round tire or wheel, or a bent rim. The main objective of this work is to reduce the stiffness of the damper, so that the damper can withstand within the required constraints [i.e. the forced frequency range of 80 Hz to 150 Hz]. The free vibrational and forced vibrational effects are investigated to predict the resonance phenomenon of the damper. Finite Element Analysis in ANSYS-11 software was performed to predict the dynamic behavior of the system under the required vibrational frequencies ranging from 80 Hz to 150 Hz at given loading conditions.
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