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Solving the given Non-Linear Equation of Force using Explicit and Implicit Methods and Comparing the Results.

Objective: To solve the equation `F(u)=u^3+9u^2+4` using both Explicit and Implicit methods, setting a tolerance of `10^-2`. To write a detailed report about implicit and explicit methods. To do the calculations in a spreadsheet and to try and plot the graph and compare them. Explicit Method: The explicit method does not…

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    Read more Projects by Sam Cherian (25)

    Simulating a Simple Crash Scenario of a Crash Box with Two Thicknesses using LS DYNA and Comparing the Results

    Objective:

    Objective: To simulate a crash test for a crash box for which the mesh model is given. The crashbox should crash into a rigidwall created using *RIGIDWALL_ keyword. Check the manual to understand and create a rigidwall.  Material for the crashbox is steel. The simulation needs to be started using elastic material…

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    16 Nov 2020 09:57 AM IST

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      Simple Drop test Simulation on a Smartphone model using LS DYNA

      Objective:

      Objective: To create a complete simulation file from the given file having just nodes and elements of two parts to perform a drop test. INITIAL_VELOCITY card is to be used to give velocity specifications for the cellphone. The orientation of the cellphone is also important and there are specific guidelines on how to orient…

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      10 Nov 2020 12:39 PM IST

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        Solving the given Non-Linear Equation of Force using Explicit and Implicit Methods and Comparing the Results.

        Objective:

        Objective: To solve the equation `F(u)=u^3+9u^2+4` using both Explicit and Implicit methods, setting a tolerance of `10^-2`. To write a detailed report about implicit and explicit methods. To do the calculations in a spreadsheet and to try and plot the graph and compare them. Explicit Method: The explicit method does not…

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        04 Nov 2020 01:18 PM IST

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          Unit Conversion for Consistency of Units in LS Dyna

          Objective:

          Objective: To write the given measurements according to the given system of units and to mention the conversion factors for the same. Value of the following measurements are given as follows: MASS - 1kg LENGTH - 1m TIME - 1s FORCE  -1N STRESS - 1Pa ENERGY - 1Nm DENSITY - 1Kg/m3 YOUNG'S Modulus - 210GPa Velocity -…

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          02 Nov 2020 08:22 PM IST

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            Preprocessing the Rear Suspension model of an Automobile using ANSA

            Objective:

            Objective: To check for the geometrical errors and mesh with the given element Quality criteria. To assign thickness for mid surfaces. To use tetra elements to model non-uniform thickness components. To use connections to connect the component. Quality Criteria for Tria Elements (Tyre and Rim):  S.No  Quality…

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            30 Oct 2020 05:26 AM IST

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              Meshing the IP Substrate of an Automobile according to the given Quality Criteria using ANSA

              Objective:

              Objective: To check for the geometrical errors and mesh the given IP substrate with the given element Quality criteria. After meshing the component the thickness has to be assigned. Quality Criteria: S.No  Quality Criteria  Value  1 Target/Average length   4 2 Minimum Length  2 3 Maximum…

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              30 Oct 2020 05:25 AM IST

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              Using basic morphing techniques to achieve a required change in the given CAD model using ANSA

              Objective:

              Objective: To use Morphing techniques to make changes to the CAD model of the given component. Procedure: 1. Open the model. 2. Perform a TOPO on the model and orient the model. The model will look as shown below: 3. Go to the Morph Deck. 4. Go to Boxes -> New and create a new box around the area of the CAD geometry…

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              21 Oct 2020 04:23 PM IST

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              Applying Necessary Connections to the Rear Side Door Model of a Car using ANSA

              Objective:

              Objective: To apply necessary connection techniques along with 1D elements on the given rear door model. Procedure: 1. Open the given Nastran file into ANSA. 2. The model will look like this: 3. The model has 2 properties defined. For easy working, one can define properties such that visibility can be changed accordingly.…

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              15 Oct 2020 05:35 PM IST

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              3-D Meshing the Rear View Mirror of a Car according to the given Quality Criteria using ANSA

              Objective:

              Objective:  To check for the geometrical errors. To mesh with the given element Quality criteria. To use tetra elements to model the component. To make sure that there are no kinks and dips on the surface of the component. Procedure: 1. Open the model in ANSA. 2. The imported model will look like this: 3. Perform…

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              15 Oct 2020 05:31 PM IST

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              Meshing a Bottle Cap Model with the given Quality Criteria after Mid-surface extraction using ANSA

              Objective:

              Objective: To check for the geometrical errors in the component and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned. Quality Criteria: S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum Length …

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              08 Oct 2020 07:14 AM IST

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              Meshing the Hood of a Car for Crash Applications using Hypermesh

              Objective:

              Objective: To follow the below-mentioned quality criteria, mesh the component given below and assign thickness: Target Element Length = 5mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 8mm 7 Min angle Quad 45 8 Max…

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              05 Oct 2020 08:27 AM IST

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                Meshing the Hood of a Car for Crash Applications using ANSA

                Objective:

                Objective:  To check the model for geometrical errors and mesh with the given element quality criteria. Assigning thickness to the component after meshing. Quality Criteria: S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  2 3 Maximum Length  7 4 Aspect …

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                05 Oct 2020 08:25 AM IST

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                Roof Crush analysis on a Dodge Neon BIW Model using RADIOSS

                Objective:

                Objective:To perform a Roof Crush analysis on the BIW of a Dodge Neon Model. The following operations need to be performed: Importing model: • Car• Impactor Positioning the Impactor: • A 180° rotation about the global z-axis• A 25° rotation about the axis through axis AC• A translation…

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                01 Oct 2020 04:50 AM IST

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                  Side Pole Crash Analysis on a Dodge Neon BIW Model using Radioss.

                  Objective:

                  Objective: To perform a side pole crash analysis on a Dodge Neon BIW Model. We are required to perform the following operations: Check unit system and either follow [Mg mm s] or [Kg mm ms]. Create appropriate interface with friction 0.2 and recommended parameters. Make sure to clear all penetration and intersections. Create…

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                  23 Sep 2020 07:18 AM IST

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                    Meshing a Floor panel of an Automobile according to the Quality criteria prescribed after extracting a Mid-Surface using Hypermesh.

                    Objective:

                    Objective: To mesh the given Floor panel of an Automotive component according to the quality criteria prescribed afetr extracting a Mid-Surface for the same.   Procedure: Step 1: Importing the Geometry and Visual inspection: 1. Go to File -> Import Geometry and choose the file that is give. 2. Delete…

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                    23 Sep 2020 07:17 AM IST

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                      Frontal Crash Analysis of a Dodge Neon BIW model using Radioss.

                      Objective:

                       Objective: To perform the Frontal crash analysis of a Dodge Neon BIW model and study the results. The following operations need to be performed: Check unit system and either follow[Mg mm s] or [Kg mm ms]. Create appropriate interface ,friction 0.2 and recommended parameters. Make sure of no penetrations and…

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                      17 Sep 2020 07:41 AM IST

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                        Analysis and Comparison of Different Contact Interfaces and Notch Significance on a Crush Tube Model using Radioss.

                        Objective:

                        Objective: To Mesh the given bumper model with an element size of 6mm. To run the given crash tube model with different conditions under 6 different cases: Run the crash tube as it is Change the Inacti = 6 and run Create Type 11 contact and run Remove both the notches and remove boundary conditions on the rigid body and…

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                        17 Sep 2020 07:40 AM IST

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                          Comparing the Types of Failure Shown by Different Material Cards with specific Failure Cards on a Simulation of a Rigid Sphere Crashing onto a Plate using Radioss.

                          Objective:

                          Objective: To simulate the event of a rigid sphere crashing onto a flat plate as seven cases with different material and failure models for the plate and to compare them on the basis of: 1. Total number of cycles, Energy error, mass error and simulation time.2. Animations of all the 5 and to describe the animations…

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                          09 Sep 2020 05:23 PM IST

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                            Simulating the Effects of Improved Shell Element Properties on Parameters like Energy Error, Mass Error, Displacement, Velocity, Von Mises Stress and Hourglass Energy for a Beam Crash Simulation and comparing it to a Basic Simulation on Radioss.

                            Objective:

                            Objective: To run two simulations:  Basic simulation of a Beam crash: Using the crash beam file from the previous assignment, change the run time to 55 ms. Change the number of animation steps during simulation to a minimum of 25 and maximum of 60. Run the base simulation without any modification to element properties.…

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                            05 Sep 2020 09:20 AM IST

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                            Editing the Radioss engine file such that the stress file can be monitored, setting the frequency of animation output to 20 animation steps and 3D meshing the given components using tetrahedral and hexahedral elements.

                            Objective:

                            Objective: To check the material properties of the rail component and calculate the speed of sound in the steel rail. To edit the engine file such that the stress file can be monitored To set the frequency of animation output to a time that will give 20 animation steps. To mesh the given components with…

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                            03 Sep 2020 07:22 AM IST

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                              Geometry Cleanup and Meshing of Three Sheet Metal Components According to the Specified Quality Criteria.

                              Objective:

                              Objective: To carry out the geometry cleanup operation on the given 3 files and ,mesh them according to the given quality criteria.   Procedure: 1. Open the hypermesh model.  2.  Next we proceed to a geometry cleanup. 3. Go to F11 (quick edit)- Filler surfaces to fill in surface gaps   Before: …

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                              02 Sep 2020 03:17 PM IST

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                                Meshing the Plastic component of the Side Door Model of a Car after Mid-Surface Extraction using Hypermesh.

                                Objective:

                                Objective: To mesh the given Side Door model according to the quality criteria mentioned after extracting the Midsurface for the same. S.N Quality Criteria  Value  1. Aspect Ratio -   5 2. Skewness - 45 3. Warping- 15 4. Taper  -  0.5 5. Min Length - 2mm 6. Max Length - 6mm 7. Min angle Quad…

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                                19 Aug 2020 06:42 PM IST

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                                  Creating connectors to attach various components of the given model after meshing using Hypermesh.

                                  Objective:

                                  Objective: To create connector and attach the various parts of the given model with the specific types of connectors specified. Procedure: 1. The first step is to mesh the entire component. 2. Mesh using automesh (f12) and set the type of mesh to mixed such that a better mesh flow is achieved and set element type to 6mm.…

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                                  10 Aug 2020 08:56 AM IST

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                                    3-D meshing of three unique components using three distinct meshing methods to satisfy the prescribed quality conditions.

                                    Objective:

                                    Objective: To 3D mesh the three components using three 3D meshing methods such that the required quality criteria is satisfied.      Procedure:  Housing Model 1. Import the geometry using the Import command and delete the solids present in the component. 2. Perform a geometry cleanup for the component…

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                                    08 Aug 2020 06:46 PM IST

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                                      Creating 1-D Spring, Mass, Bar, Beam and Rod elements by forming RBE2 and RBE3 links on a set of brackets using Hypermesh and Hyperbeam.

                                      Objective:

                                      Objective: The objective of the project is to understand and create 1D Bar, Beam and Rod elements by creating RBE2 and RBE3 links on set of brackets and use Hyperbeam to effectively set the dimension and cross sections of the elements. Procedure:  1. Import the file by going to File -> Import geometry and…

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                                      10 Jul 2020 01:43 PM IST

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