Experimental facilities available

  1. FORCED VIBRATIONS OF EQUIVALENT SPRING-MASS SYSTEM (CANTILEVER) OF SINGLE AND TWO ROTOR SYSTEM
  2. TORSIONAL VIBRATIONS OF SINGLE AND TWO ROTOR SYSTEM
  3. CAM ANALYSIS APPARATUS
  4. WHIRLING OF SHAFT APPARATUS
  5. STATIC AND DYNAMIC BALANCING APPARATUS
  6. EPICYCLIC GEAR TRAIN APPARATUS
  7. MOMENT OF INERTIA  APPARATUS

 

   

    

    

 

 

MACHINE DESIGN LAB (ME 316)

It is a compulsory laboratory course for Sixth Semester B.Tech – Mechanical Engineering.

Course Objectives:

  1. To enable the students for learning the fundamental design procedure with hand on demonstration.
  2. To develop the skill of solving the design problem through programming, simulation, design of experiments, and machine learning.
  3. To develop the skills of designing and analyzing the prime mover / non-prime mover / innovative product.
  4. To develop the skill for expediting the estimation and costing of the designed product/components.

 Other than aforesaid experiments, the following modules are included in the Machine Design Lab (ME 316), as stipulated below:

 

 

 

MODULE 1: Solid Modeling by CATIA / SOLIDWORKS 

  1. Creation of 3D models: - Wireframe, Surface, and Solid modeling techniques using CAD packages, Parametric modeling.
  2. Drafting: - Generation of orthographic 2D views from models, Sectioning, Detailing –Exposure to Industrial components-Application of Geometrical Dimension & Tolerance.
  3. Assembly Design: - Generation of assembly design for various machine parts, Generation of 2D drawings, and bill of materials lists.
  4. Design and detail documentation: - Generation of complete details of design and documentation of solid models.
  5. CAD Standards: - Introduction to some CAD standards (such as STL, IGES, STEP, Parasolid, DWG, etc.) and hands-on practice on sample exercises.

Exercises for practice -

  • Modeling of machine parts, and brackets using 2D drawings
  • Modeling of surfaces using the given master geometry
  • Parametric modeling of standard parts such as nuts, bolts, rivets, washers etc
  • Assembling of machine parts
  • Generation of manufacturing drawings from 3D models/assembly
  • Generation of complete details of design and documentation of solid models
  • Introduction to some CAD standards

MODULE 2: Materials Selection 

Materials selection for a mechanical design using the Ashby chart for stiffness-based and strength-based design

  1. Introduction to the Ashby chart and its utility in materials selection.
  2. Stiffness-based design.
  3. Performance index calculation.
  4. Material index calculation.
  5. Selection of appropriate materials for the desired applications.

MODULE 3: Design and Analysis by Finite Element Analysis (ANSYS / ABAQUS / COMSOL)

Design a 3D model/assembly of a machine element/component and conduct a FE (Static and Dynamic) analysis by using software like ANSYS / ABAQUS / COMSOL – Structural / Thermal analysis

  1. Pre-processing: – Import or Create geometry (Lines/Areas/Volumes), Define element type and real constants, Define material properties, Meshing of lines/areas/volumes, Applying Loads (uniformly distributed, point load, etc), Apply constraints, i.e., boundary conditions (fixed edge, simply supported, etc)
  2. Solution:- Solving problem
  3. Post-Processing:- GUI Method, Command File

MODULE 4: Estimation and costing of a machine element/component/assembly

Design any machine component (for example, C.I Pulley / Shaft Coupling) and carry out the estimation and costing by considering all cost components based on the current market price and assessment of the selling price of the component. Considering final design dimensions and current market price rate as input for assessment of the selling price of the machine element/component.

MODULE 5: Programming for Design of a machine element/component/assembly

Write a program in MATLAB / C / any programming language for the design of a machine element/component/assembly.

MODULE 6: Design of Experiments (DoE) and Machine Learning (ML) 

Design and analysis can be exhibited based on the design of the experiment (DoE) for any mechanical components based on experimental primary or secondary data sources to portray the sensitivity of individual input parameters and conduct machine learning methods for saving computational time and cost.

MODULE 7: Design and analysis of non-prime mover / innovative product or new idea

  1. Motivation – Why does it need?
  2. Problem – What is the real-life problem?
  3. Brainstorming ideas – Conceptualization of ideas to obtain suitable solutions to the problem
  4. Embodiment design and detail design and analysis
  5. Final solution
  6. Pros and Cons
  7. Future Outlook

MODULE 8: Design of Prime Mover – Internal Combustion Engine / Hydraulic Turbine / Wind Turbine – (To be conducted as Group Activity)

Design and analysis of any prime mover (IC Engine / Hydraulic Turbine / Wind Turbine) along with the design of its major components indicating bill of materials, part drawings, and assembly drawings.

Documentation and Lab Report Submission:

The preparation of the laboratory report should contain all the aforesaid experiments and modules. In the report, for each experiment/module, the following points should contain: (a) Introduction (b) Methodology / Design Procedure and formulations/analysis (c) Drawing / Sketches (d) Sample analysis and calculations (e) Precautions and Limitations (f) Conclusion

 

Lab In-charge: Dr. Sudip Dey, ME Dept, NIT Silchar (Email: sudip@mech.nits.ac.in)