Learning Objectives
7 objectives- Understand the fundamental principles and concepts of machine design.
- Apply material selection criteria based on mechanical properties and application requirements.
- Analyze static and dynamic forces affecting machine components.
- Design and evaluate mechanical power transmission and bearing systems.
- Utilize Finite Element Analysis (FEA) tools for machine component design and optimization.
- Incorporate safety, ergonomics, and manufacturing considerations into machine design.
- Critically examine real-world case studies to apply theoretical knowledge.
Content Outline
PreviewUnit 2125: Machine Design Fundamentals
1. Introduction to Machine Design
- Definition and scope of machine design
- Importance of machine design in engineering applications
- Overview of design process and methodologies
- Types of machine elements
2. Material Selection in Machine Design
- Material properties relevant to machine design (strength, toughness, fatigue resistance)
- Common materials used: metals, polymers, composites
- Selection criteria and decision-making processes
- Case examples of material selection
3. Statics and Dynamics in Machine Design
- Principles of statics: equilibrium, free-body diagrams
- Forces and moments analysis
- Dynamics: kinematics and kinetics of machine components
- Impact of dynamic loading and vibrations
4. Mechanical Power Transmission Systems
- Types of power transmission: gears, belts, chains, couplings
- Design considerations for each system
- Efficiency and performance factors
- Maintenance and troubleshooting
5. Bearing and Lubrication Systems
- Types of bearings: plain, rolling element, fluid film
- Selection criteria and load capacity
- Lubrication principles and methods
- Bearing failures and preventive measures
6. Design of Machine Elements
- Shafts, keys, pins, springs, fasteners
- Stress analysis and factor of safety
- Design calculations and standards
- Integration of machine elements into assemblies
7. Finite Element Analysis (FEA) in Machine Design
- Introduction to FEA concepts and workflow
- Meshing, boundary conditions, and load application
- Interpretation of results: stress, deformation
- Case studies demonstrating FEA application
8. Safety and Ergonomics in Machine Design
- Design for operator safety and risk assessment
- Ergonomic principles in machine interfaces
- Standards and regulations
- Human factors engineering
9. Design for Manufacturing and Assembly (DFMA)
- Principles of DFMA
- Simplification of parts and processes
- Cost and time reduction strategies
- Impact on product quality and reliability
10. Case Studies in Machine Design
- Analysis of real-world machine design projects
- Problem identification and solution approaches
- Lessons learned and best practices
- Group discussions and presentations
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