The Design Innovation Lab (DIL) at IIT Mandi is an initiate of School of Engineering (SE) in partnership with IIT Delhi provides necessary ecosystem for graduates and research scholar to develop much needed skills that are required to design and develop products and technologies. Since India is moving towards “Make in India” policy and IIT Mandi’s mission and vision are coherent with the country vision, our institute attempt to produce graduates and research scholars with skills that would enable them to think independently in terms of creativity and innovation. With the conviction that technological innovation constitutes an essential element for achieving progressive development and permanent improvement in any activity, state-of-the-art design center is being set-up in the campus funded by MHRD. Since the next wave of economic growth globally will be led by innovation and entrepreneurship, this would be the key economic driver for India in the coming years. Fund amount: 1.3 crore
A patent has been filed a. Title: Dye Sensitized Solar Panels by an aerosol jet 3D printing mechanism” b. Inventors: Sk Moiz Ahmed (student), M. Abhilash (student), Dr. O. P. Singh c. Patent no.: 2942/DEL/2014 d.Brief description:There has grown an increasing need for alternative energy production due to depleting natural resources. Green energy has grown into a popular research area and yet the methods to harvest green energy are scarce. In these times solar energy has grown to be a promising source of energy with its unending reserves of solar power. While the currently manufactured solar panels employ techniques like Chemical vapor deposition, plasma enhanced vapor deposition etc. Traditional 3D printers employ a heated nozzle that melts the thermosetting material and prints an object of desired shape by slicing the CAD model of the object into thin slices. But these 3D printers either print plastics or metal alloys but none of them print solar panels in any form. We intend to introduce an alternative method which can serve as an alternative to the traditional sporadic method of coating by using the 3D printing technique. This invention relates to the production of Dye Sensitized Solar Panels by pressurized syringe type pumping mechanism. The technique is based on the printing of DSSC solar cells by utilizing a pumping mechanism that can impart aerosol particles onto the surface and serve as an aerosol jet printing mechanism for various research and quality optimization applications. Figure below shows the design of the patented 3D printer.
IIT Mandi student entrepreneurs pitched their idea on start-ups (image taken after presentation).
Apart from other design and innovation courses at IIT Mandi, a new course on Applied Finite Element Method (Applied FEM) is being offered. The course would train the students on industry standard process to analyze a new product designs and ideas using advanced FEM tools before making prototypes. The course details are given below. This course is unique as this is rarely offered in any universities whose content is mostly multidisciplinary, applied and hands on.
Patented 3D Printer Design
Sri Durga Prasad Jagarlamudi, with entrepreneurs students of IIT Mandi
FEM model of Eiffel tower
Applied Finite Element Method (FEM) (tbo, Aug-Dec)
Contact me for conducting practical FEM training/workshop at your institute/company.
Pre-requisites: Solid mechanics, prior exposure to design software, engineering mathematics
Objective:Graduate students including masters and PhD students study lots of theory of Finite Element Method but when comes to the application of theory in solving real world problems, they either lack the skill and/or don’t know to approach the problem. A real world problem involve all kind of physics and geometry simultaneously, for example, a car undergoes thermal, NVH, CFD, static loads, fatigue, linear and non-linear dynamics with various geometry shapes such as thin and thick sheets, thin and thick beam etc. Hence, students need practical exposure to such multidisciplinary problems. Keeping this in mind, this course has been designed to provide SKILL to the students on industry standard tools and practices using Applied FEM. At the end of the course, the students are expected learn the theory as well as quality meshing and analysis techniques of various types (1D, 2D, 3D) using variety of element types. Students will be given design problems and they are expected to solve it using FEM tools.The course will also be taught be experts from various industries who have extensive experience in handling FEA tools and design processes.
Introduction to FEM: Basics of statics, strength of materials and FEM, CAE driven design process, Analysis types: linear, non-linear, dynamic, buckling, thermal, Fatigue, optimization, CFD, NVH etc, 1D, 2D, 3D methods, Degree of freedom, Advantages of FEM, Modeling/Pre-processing techniques, introduction to meshing, common mistakes and errors, Application of analysis types in various engineering fields.
FEM-Weighted Residue Approach: Non-weak type methods- methods adopted to minimize errors: Subdomain, Galerkin, Petrov-Galerking, Least Square, Collocation; Weak form type method: Rayleigh-Ritz method, Finite element method, Global stiffness matrix, Shape functions, Direct application of element matrix equations, Compatibility, Convergence criteria, Sources of errors, 1D problems in heat transfer, fluid flow, vibration etc. and comparison with exact solution.
1-D Meshing : Introduction to meshing, when to use 1-D meshing, meshing in critical areas, element section, stiffness matrix derivation (direct method) and its properties, element types: beam element, rigid elements, fasteners, problems based on 1-D FEM and comparison with exact theory.
2-D Meshing: When to use 2-D elements, mid-surface, Constraint strain triangle, different types of element and their displacement function, Family of 2-D elements: plane stress, plan strain, plate, membrane, thin shell etc., effect of mesh density, effect of biasing in critical region, boundary conditions, how not to mesh, shrink wrap meshing, problems based on 2-D FEM and comparison with exact theory.
3-D Meshing: When to use 3-D elements, DOF for solid elements, Algorithms, brick meshing, how not to mesh, Hexa and Penta elements, solid map meshing.
Element Quality and Checks: Compatibility and mechanisms, spring elements, shells to solids, beam to solids, beams normal to shells, beam to shell edge, General element quality checks: skewness, aspect ratio, warpage, jacobian; 2-D quality checks, quality checks for tetra meshing, brick mesh quality checks, student projects on mesh quality.
Weld, Bolt and Shrink Fit Modeling: Welding simulation-modelling spot and arc welding, bolted joints, bearing simulation, shrink fit simulation.
Linear Static and Dynamic Analysis: Stiffness matrix, stress and strain calculations,FEM model for linear analysis, error analysis, design problems based on linear analysis, Theory of dynamic analysis: forced and free vibration, mode shapes, harmonic analysis, design for avoiding resonance.
Thermal Analysis: Conduction, convection and radiation heat transfer, structured and unstructured meshing, IC engine block thermal analysis, Introduction to CFD.
Nonlinear analysis: Introduction to non-linearity, types of non-linearity: geometric non-linearity, material non-linearity, boundary non-linearity/contact non-linearity, stress-strain measures, general procedures for nonlinear static analysis, plasticity.
Applied FEM: Projects based on thermal analysis, CFD, Fatigue analysis, NVH analysis, Crash analysis etc., application of FEA in biomedical, implant designs such asOrthopaedic Implants, Spine Implants, Cardiovascular Implants, medical device components, automotive, aerospace, civil etc.
Course materials:1. Introduction to Applied FEM [download ppt], 2. FEM Weighted-Residue Approach [download ppt] Lab materials: 1. Model for geometry per-processing: Geometry file: Human dummy.step or HyperMesh file: Human dummy.hm
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