ANSYS is a program that is used to upgrade the correspondences of basic, vibration, liquid elements, electromagnetic, material science, and more for the expert architects. It steps through exams and solely permits to take in a virtual climate before the building up the individual model items. This product can work in coordination with different utilizations of the building by figuring CAD and FEA modules of association.
Moreover, ANSYS is fit for bringing in CAD information, in addition, to empower to create geometry with its "preprocessing" capacities. In like manner, in a comparable pre-processor, a limited component model or work which is required for calculation gets produced. Post characterizing loadings in addition to doing investigations; you can see the outcomes in graphical and numerical structures. The best piece of ANSYS is it is fit for doing dynamic designing examinations securely, for all intents and purposes, and rapidly by different time-stacking qualities, non-direct materials models, and contact calculations.
The ANSYS mechanical programming suite gets trusted by numerous associations the whole way across the world for tackling basic in addition to warm issues with no trouble and that excessively quick. The auxiliary specialist's answers from ANSYS gracefully the capacity to imagine the basic parts of the items that incorporate a non-straight static investigation which proposes disfigurement, stresses, and modular examination which make out the vibration qualities. Utilizing the mechanical programming arrangements from ANSYS, understudies can import geometries of confused congregations, work them ideally, in addition, to apply flawless limit conditions. There are numerous different advantages of ANSYS. ANSYS has the most experienced specialists with concentrated information on the diverse relevance of ANSYS. Below are the most important topics of taking ANSYS homework help services.
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The starting point for this mini-project is a CAD file that has already been imported into ANSYS (“imported chassis geometry.db”), see Fig 1. nb the length dimensions used in the CAD work are cm so modulus values should be specified in Ncm-2, etc.
This should be meshed with 4-noded shell elements (type 181) and assigned a lay-up of 1mm thick CFRP skins of T800 5H Fabric (Cycom2020 epoxy prepreg) aligned longitudinally along the chassis and a 12 mm thick low modulus Divinycell HP80 core (from DIAB). (remember, dimensions in cm).
Create a local coordinate system with the “1” axis-aligned longitudinally along the chassis and the “2” axis-aligned laterally. Assign this as the element coordinate system for all elements. Plot the element coordinate system and ensure that it is correctly aligned for each element.
Plot the elements so you can see the separate layers and materials to ensure it looks correct.
Find the torsional stiffness by fixing the rear of the chassis and applying vertically opposing forces to a pair of keypoints symmetrically positioned either side of the center line on the front of the chassis. Solve the model and make sure that the opposite sides of the chassis go up and down by the same amount. Calculate the torsional stiffness by plotting the z displacement divided by the x coordinate for a line of nodes along the chassis length along the middle of one of the sides. This should represent the tan of the angle of rotation. How does the twist vary along the length? Find the torsional stiffness (Nm/rad) by dividing the torque applied by the rotation.
Optimizing the Stiffness
Investigate how varying the orientation of the CFRP layers (0o, 15o, 30o, and 45o) affects the torsion stiffness. Which orientation provides the optimum stiffness and what is the maximum stiffness? If it was required to obtain further increases in torsion stiffness it would be necessary to increase the thickness of either the core or the CFRP faceplates. Use your model to determine which to increase in order to minimize the increase in the mass of the chassis. Present your results in terms of the ratio of stiffness increase to mass increase.
Reinforcing the cockpit opening
Looking at the deformed shape it seems that there is considerable deformation around the cockpit opening. Model the effect of incorporating 25mm OD steel tubes with 2mm wall thickness all the way around the opening as shown in Fig 2. Use BEAM188 elements and define the tube section as a 2nd section (section/beam/common sections …). Before you mesh the lines with the beam elements you will need to set the default attributes to the correct settings (meshing/mesh attributes ….). Before solving check correct materials and sections have been applied by plotting element material numbers (PlotCtrls/numbering) and displaying the elements based on the real constants (PlotCtrls/Style/size and shape/…). Calculate the increased torsional stiffness. What is the increased weight penalty? For this you can avail ANSYS Homework Help from our experts
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