scholarly journals Titanium Alloy is Best Material for Roller Shaft in Sugar Mill

2021 ◽  
Vol 10 (12) ◽  
pp. 1-6
Author(s):  
Ashish B. Pendharkar ◽  
◽  
Laxmikant S. Dhamande ◽  
Keyword(s):  
Finite Element Method ◽  
Shear Stress ◽  
Titanium Alloy ◽  
Sugar Industry ◽  
Maximum Shear Stress ◽  
Vital Role ◽  
Maximum Amount ◽  
Sugar Mill ◽  
Total Deformation ◽  
Ansys Workbench

In sugar industry, the sugar processing done in different sections, but to increase total crushing per day (TCD) capacity, the milling section takes a vital role in the sugar industry. The sugar industry aims to extract the maximum amount of juice from sugarcane. In the milling section, the processed sugarcane is fed in between the three-roller shaft from the different arrangements, there are different loads applied on each part roller shafts. When load between all rollers varies then there is a chance of bending it is analyzed to check the roller shaft condition. The modeling is done on roller shaft with the help of CATIA V5. After modeling, we analyze the condition of the rollers, when different stress or forces are applied to different sections of the roller shaft it analyzed with the help of Finite element method using ANSYS WORKBENCH software. We were selecting titanium alloy materials for the roller shaft to analyze the variation in results. When comparing the calculated and software-based results using Maximum Shear stress and Total deformation for top, feed, and discharge rollers said the roller shafts are safe to use in the sugar industry and titanium alloy is the best material for these roller shafts.

Design Optimisation and Analysis of a Quadrotor Arm Using Finite Element Method

2014 ◽  
Vol 664 ◽  
pp. 371-375
Author(s):  
Vishank Bhatia ◽  
R. Karthikeyan ◽  
R.K. Ganesh Ram ◽  
Yashaan Nari Cooper
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Design Optimization ◽  
Gravitational Force ◽  
Von Mises Stress ◽  
Structural Elements ◽  
Total Deformation ◽  
Element Analysis ◽  
Von Mises ◽  
Ansys Workbench

The structural analysis of quad rotor frame is important since it has to withstand the forces due to aerodynamics and gravitational force due to the mounted weights. Design optimization based on finite element analysis provides an efficient methodology to meet the desired objectives related to structural elements. In the present study, design optimization based on response surface methodology has been used to optimize the shape of the arm used in the quad rotor. The objectives considered for the study include minimization of Von Mises stress and total deformation. The goal driven optimization used in ANSYS WORKBENCH has been employed for the study and arm has been redesigned to meet the set goals.

Friction coefficient in fretting between titanium alloy and stainless steel

1993 ◽  
Vol 28 (1) ◽  
pp. 63-66 ◽  
Author(s):  
Z X Ouyang ◽  
S C Pan ◽  
Y P Li ◽  
N Ouyang
Keyword(s):  
Stainless Steel ◽  
Shear Stress ◽  
Titanium Alloy ◽  
Friction Coefficient ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Mechanical Engineering ◽  
Maximum Shear Stress ◽  
Aeroengine Components ◽  
Contact Parameters

A test of fretting between titanium alloy and stainless steel is conducted, with the concept that the friction coefficient is regarded as a variable rather than a constant. The aim of this experiment is to simulate the real working structure of a dovetail joint commonly used in aeroengine components and other related mechanical engineering applications as well as to calculate its contact parameters by means of the Boundary Element method. One of the most important findings shows that the maximum shear stress is lower than usually considered when taking the friction coefficient as a variable into account, since it behaves naturally.

scholarly journals Simulation of knee implants made of Ti6Al4V material during walking

2018 ◽  
Vol 204 ◽  
pp. 07015
Author(s):  
Djoko Kustono ◽  
Retno Wulandari ◽  
Andoko ◽  
Poppy Puspitasari ◽  
Galih Adhi Kurniawan ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Shear Stress ◽  
Human Body ◽  
Maximum Shear Stress ◽  
Bone Matrix ◽  
Maximum Principal Stress ◽  
Total Deformation ◽  
Body Frame ◽  
The Matrix ◽  
Simulation Results

Bone is the connective tissue in the human body which consists of cells, fibers, and extracellular matrix. The bone matrix is the hardest part located in the outer layer of the bone, which is caused by the deposition of minerals in the matrix, so that the bone undergoes classification. The bone functions as a hard, rigid body frame, and provides a place or space for attachment of muscles and organs found in the human body. The simulation results using FEM showed that knee implants made with Ti6Al4V material had a total deformation of 0.15 mm, maximum principal stress of 17.012 MPa, and a maximum shear stress of 15.841 MPa. The analysis was performed using a variation of time 0 to 1.01 seconds.

A multiscale finite-element method for solving rough-surface elastic-contact problems

2004 ◽  
Vol 82 (9) ◽  
pp. 679-699 ◽  
Author(s):  
Y Yao ◽  
M Schlesinger ◽  
G WF Drake
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Shear Stress ◽  
Contact Region ◽  
Maximum Shear Stress ◽  
Elastic Contact ◽  
Hertz Theory ◽  
Frictionless Contact ◽  
Multiscale Finite Element Method ◽  
Multiscale Finite Element

A novel multiscale finite-element method to investigate the elastic contact of two-dimensional rough surfaces is presented. The aim of the method is to find the microscopic curve that describes the deformed shape of a solid with a smooth boundary surface in frictionless contact with a rigid rough surface. In addition, the real contact area is studied through the surface deformation. The contact traction on the contact surface and the maximum shear stress around the contact region are analyzed. This method is based on the variational inequality approach for solving the elastic frictionless contact problem. The strategy is to separate a small slice within the contact region and solve it as an independent system. Then the contact traction is obtained through iterations between the solution of the independent small slice and the solution of the total solid body. We observe a much higher pressure than the result of Hertz theory around the asperities. The main conclusions are (1)~the actual contact area and surface traction are dependent on the wavelength and amplitude of the surface roughness, (2) there is a much higher pressure around the asperities than predicted by Hertz theory, and (3) the location of maximum shear stress tends to be shifted toward the surface as compared with the case of smooth-surface contact. The method has the potential to be extended to solve three-dimensional rough contact problems.PACS Nos.: 03.40.D, 46.30.P, 62.20.P

Study on Tension Spring of Track Hydraulic Drill Rig

2011 ◽  
Vol 204-210 ◽  
pp. 2206-2209
Author(s):  
Qing Wen Qu ◽  
Cheng Jun Wang ◽  
Xiao Dan Lou
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Shear Stress ◽  
Maximum Shear Stress ◽  
The Other ◽  
The Finite Element Method ◽  
Tension Spring ◽  
Design Time ◽  
Design Selection ◽  
Element Method

The intensity of the spring was adjusted with finite element method and the distributive laws of stress field and displacement field were obtained. Thus the maximum shear stress was got through the formula of spring intensity. So, two methods on analyzing the stress of cylinder spiral tension spring were introduced in this paper. One is the finite element method; the other is the formula of spring intensity. Then analyzing the spring deformation under load clarifies the function of the finite element method upon spring design, selection and strength check, and improves the reliability of spring design and shortens design time.

scholarly journals Studying the performance of fully encapsulated rock bolts with modified structural elements

2021 ◽  
Author(s):  
Jianhang Chen ◽  
Hongbao Zhao ◽  
Fulian He ◽  
Junwen Zhang ◽  
Kangming Tao
Keyword(s):  
Shear Stress ◽  
Load Transfer ◽  
Maximum Shear Stress ◽  
Coupling Model ◽  
Numerical Approach ◽  
Rock Bolt ◽  
Structural Elements ◽  
Rock Bolts ◽  
Two Stage ◽  
Bolt Diameter

AbstractNumerical simulation is a useful tool in investigating the loading performance of rock bolts. The cable structural elements (cableSELs) in FLAC3D are commonly adopted to simulate rock bolts to solve geotechnical issues. In this study, the bonding performance of the interface between the rock bolt and the grout material was simulated with a two-stage shearing coupling model. Furthermore, the FISH language was used to incorporate this two-stage shear coupling model into FLAC3D to modify the current cableSELs. Comparison was performed between numerical and experimental results to confirm that the numerical approach can properly simulate the loading performance of rock bolts. Based on the modified cableSELs, the influence of the bolt diameter on the performance of rock bolts and the shear stress propagation along the interface between the bolt and the grout were studied. The simulation results indicated that the load transfer capacity of rock bolts rose with the rock bolt diameter apparently. With the bolt diameter increasing, the performance of the rock bolting system was likely to change from the ductile behaviour to the brittle behaviour. Moreover, after the rock bolt was loaded, the position where the maximum shear stress occurred was variable. Specifically, with the continuous loading, it shifted from the rock bolt loaded end to the other end.

Flow and Thermal Fields in a Pendant Droplet Moving on Lyophobic Surface

2010 ◽  
Author(s):  
Basant Singh Sikarwar ◽  
K. Muralidhar ◽  
Sameer Khandekar
Keyword(s):  
Heat Transfer ◽  
Contact Angle ◽  
Reynolds Number ◽  
Shear Stress ◽  
Heat Transfer Coefficient ◽  
Wall Shear Stress ◽  
Transfer Coefficient ◽  
Maximum Shear Stress ◽  
Computational Domain ◽  
Wall Shear

Clusters of liquid drops growing and moving on physically or chemically textured lyophobic surfaces are encountered in drop-wise mode of vapor condensation. As opposed to film-wise condensation, drops permit a large heat transfer coefficient and are hence attractive. However, the temporal sustainability of drop formation on a surface is a challenging task, primarily because the sliding drops eventually leach away the lyophobicity promoter layer. Assuming that there is no chemical reaction between the promoter and the condensing liquid, the wall shear stress (viscous resistance) is the prime parameter for controlling physical leaching. The dynamic shape of individual droplets, as they form and roll/slide on such surfaces, determines the effective shear interaction at the wall. Given a shear stress distribution of an individual droplet, the net effect of droplet ensemble can be determined using the time averaged population density during condensation. In this paper, we solve the Navier-Stokes and the energy equation in three-dimensions on an unstructured tetrahedral grid representing the computational domain corresponding to an isolated pendant droplet sliding on a lyophobic substrate. We correlate the droplet Reynolds number (Re = 10–500, based on droplet hydraulic diameter), contact angle and shape of droplet with wall shear stress and heat transfer coefficient. The simulations presented here are for Prandtl Number (Pr) = 5.8. We see that, both Poiseuille number (Po) and Nusselt number (Nu), increase with increasing the droplet Reynolds number. The maximum shear stress as well as heat transfer occurs at the droplet corners. For a given droplet volume, increasing contact angle decreases the transport coefficients.

Study on Thermal Analysis of the Shape of Improved Electric Cooker Liner Based on ANSYS Workbench

2014 ◽  
Vol 487 ◽  
pp. 568-571
Author(s):  
Yan Li Su ◽  
Lei Li ◽  
Wei Guo Han
Keyword(s):  
Thermal Analysis ◽  
Thermal Stress ◽  
Stress Analysis ◽  
Thermal Effects ◽  
The Body ◽  
Total Deformation ◽  
Ansys Workbench

In this paper, a comparative thermal analysis is carried out according to the bottom of HR-FD51 electric cooker liner about a large or small fillet. And then the thermal analysis results are applied to stress analysis as the body loads. The results show that it can reduce thermal stress and total deformation with a large fillet, thereby, improves the lifespan of electric cooker liner and thermal effects as well.

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