Side crash analysis of Neon car BIW model in Hypermesh

OBJECTIVE: To create a model of an Electric Vehicle with appropriate motor, controller and vehicle subsystem designs   MODELING: Modeling of an EV in SImulink consists of creating the vehicle body, motor, motor controller, driver and drive cycle systems with the appropriate parameters. Default Solver configuration is used…

Part A: 1. Search and list out the total weight of various types of aircrafts. A. Aircraft weights are classified into following: i. Manufacturer's empty weight (MEW)Also called Manufacturer's Weight Empty (MWE) or Licensed Empty Weight It is the weight of the aircraft "as built" and includes the weight…

  1. For a defined driving cycle, calculate the energy required for braking. A. Braking energy is the energy required for to bring a vehicle to rest from a given velocity. It depends on the mass and the instantaneous velocity of the vehicle. To calculate Braking energy, we will We will assume suitable values of above…

1. Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse.  A. A BJT H-bridge is a circuit used to provide pulsating DC input to a DC motor, and to control its speed. The circuit…

1.  Which types of power converter circuits are employed in electric and hybrid electric vehicle?  A. In an electric vehicle, the electrical energy has to be converted into mechanical energy to be used by as the motor output. Additionally, the charging of the electrical energy takes places via charging stations,…

Week-4 Challenge WOT Condition Part-2   1. What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?  A. Mapped models: 1. Mapped models utilise lookup tables to simulate the characteristics of the vehicle architecture. 2. It works on a macro level,…

Objectives: To perform endurance test of default electric vehicle To perform gradeability test of Prius Japan model   Procedure: A. To perform endurance test of Default electric vehicle with 500 kg cargo mass and FTP cycle 1. Start the advisor tool through MATLAB and load the ev_default_in model 2. Input the cargo…

Objective: To parse the thermodynamic data and obtain useful information about the species   Theory: The dataset consists of species name and a set of 14 co-efficients. These co-efficients, a1 to a14, are used to calculate Enthalpy, Entropy and Specific heat of the species at any given temperature in the given range.…

Objective: To maximise the stalagmite function using Matlab's genetic algorithm function and find the maxima   Theory: Genetic algorithm uses the concept of evolution through natural selection to reach a global minima for a given function. It uses a set of data points called the first generation as the basis for the first…

Objective: To compare the simulation results with base properties and improved shell element properties   Procedure: A. Preparing the Engine output file: Open the Egine input file and change the Run time to 55. For 55ms runtime and a max animation steps of 60, we get animation frequency as 0.9167 ms. We input these…

Objective: To study and plot the effects of various material laws and properties on given simulation and determine the case that would represent the on-field situation accurately.   Procedure: Case 1:1. Open the solver input deck in Hyperworks. Change the material properties to default, except N and thick. Run the…

Objective: A. To mesh the bumper assembly B. To run the simulations with variations in initial penetration, contact type, and notch positions and document the different cases   Procedure: A. Meshing the bumper model: 1. Import the model in Hyperworks in the Optistruct profile 2. Correct the geometrical discontinuities…

Objective: To perform frontal crash analysis of a car body semi-assembly and obtain outputs of forces in various sections   Model: The model is a sub assembly of the front, bottom and side frames of the car. These sections have been chosen for the crash test as they give structural integrity and strength to the car…

Objective: To perform side crash analysis of Neon car BIW model in Hypermesh using Radioss   Model and test scenario: The model is a reduced BIW frame of Neon car, which we have to use for the simulation. The simulation is a side crash analysis, where the rigid object is a pole of diameter 254mm. This simulation will…

Objective: To solve the second order ODE that defines the motion of a simple pendulum with damping, and to simulate the motion   Theory: The motion of a simple pendulum with damping is defined by the following governing equation: `(d^2 θ)/(dt^2 )+b/m (dθ)/dt+g/l sinθ=0` where `theta`…

Objective: A. To Calculate various parameters from given Engine Input file B. To edit Engine output file to get desired output C. To Hexa mesh the given component D. To Check the 2D mesh quality of meshed component and create 3D mesh as per given criteria.   Procedure: A. 1. By checking the material properties from…

Objective: To Extract Midsurface, Permorm geometry cleanup and 2D Meshing of given components.   Procedure: 1. Import Part-1 into Hyperworks in the Optistruct profile.   2.As seen below, the part has missing surfaces and other surface problems   These issues are to be resolved using Geometry cleanup tools…

Objective: To mesh the given component by extracting mid-surface and perform mesh quality checks.   Component Study: The component is a sheetmetal part, part of the floor panel of a vehicle.   We observe following points: The part has uniform thickness, as it is a sheetmetal component There are some geometrical…

Objective: To perform batch meshing on the given components and assign non linear material property   Procedure: A. Hood: 1. Import the model in Hypermesh Radioss module and check for any geometrical errors. 2. Create and save parameter and criteria files as per given input: In criteria make sure to chekc \"extract…

Objective: To mesh the given component by extracting mid-surface and perform mesh quality checks.   Component Study: The component is a plastic side door trim body, part of a vehicle body for crashworthiness analysis.   We observe following things: The part consists of a central base which is of 2.8m thickness…

Objective: To mesh the given models using 3D tetra meshing   Procedure: Housing: 1. Import the model in Hyperworks and Perform any required geometry cleanup. Unwanted fillets and small edges are removed for obtraining a good quality mesh. 2. After the geometry cleanup is complete perform 2D meshing on the surfaces.…

Objective: To attach the various parts of the given model using appropriate connectors   Procedure: 1. Import the model into Hyperworks. Mesh all the surfaces using 5mm element length and mixed element type.   2. Isolate RR2 and FT1 and connect them using the Seam-Quad(angled+capped+L) seam connector. Tolerance…

Objective: In this project, we will be meshing the back door of a hatchback car, which is composed of three components: 1. Upper body 2. Inner Panel 3. Lower body. Since they are all sheetmetal components, we will extract the midsurface and mesh them searately.   Procedure: 1. The model is imported into Hyperworks.…

Objective: To mesh the given component as per the criteria. Procedure: 1. The model is imported in Hyperworks. The midsurface is extracted from the Inner Body and isolated by hiding other bodies. It is made current component. Autocleanup is carried out on the midsurface. 2. The component is split horizontally as shown…

Objective: To create various types of 1D elements and define the sections   Procedure: 1. Open the model in Hypermesh and extract the midsurface of both bodies separately 2. Perform autocleanup and washer split on the holes. Then mesh the displayed surfaces using Automesh command and surfaces as displayed. Element…

SECTION I   Objective: To model the provided design in Hyperworks Features used: We will be using Generate Nodes, Lines, surfaces, fillets, trim and delete features in order to generate the model. Design: Procedure: We start by creating two lines in the XZ plane using the XYZ Coordinates of the points of the lines…