Unit 2169: Mechanical Design Fundamentals and Applications

1. Introduction to Mechanical Design

• Overview of mechanical design principles
• Design processes: conceptualization to realization
• Importance of design considerations: function, safety, cost, ergonomics
• Constraints and objectives in design: technical, economic, environmental

2. Material Selection in Mechanical Design

• Key material properties: strength, toughness, hardness, ductility, fatigue resistance
• Common materials in mechanical design: metals, polymers, composites, ceramics
• Factors influencing material choice: operating environment, load conditions, manufacturability, cost
• Material testing and standards

3. Static Analysis in Mechanical Design

• Fundamentals of static loading
• Stress analysis: types of stress, stress distribution
• Strain analysis and material deformation
• Deformation analysis and deflection calculations
• Ensuring structural integrity and safety factors

4. Dynamic Analysis in Mechanical Design

• Introduction to dynamic loading and mechanical vibrations
• Vibration analysis: natural frequency, resonance, damping
• Fatigue analysis: stress cycles, endurance limit, fatigue life prediction
• Modal analysis techniques for mechanical systems
• Predicting and preventing dynamic failures

5. Finite Element Analysis (FEA)

• Introduction to FEA concepts and applications
• Meshing and model setup
• Boundary conditions and load applications
• Interpretation of FEA results: stress, strain, displacement
• Design validation and optimization using FEA

6. Mechanical Design for Manufacturing

• Design for manufacturability (DFM) principles
• Tolerance analysis and geometric dimensioning and tolerancing (GD&T)
• Selection of manufacturing processes and their design implications
• Cost-effective design strategies
• Case studies on design-manufacturing integration

7. Computer-Aided Design (CAD) in Mechanical Design

• Role of CAD in mechanical design workflow
• Creating detailed 3D models and assemblies
• Generating engineering drawings and documentation
• Visualization, simulation, and design iteration capabilities
• Popular CAD software overview

8. Design Optimization Techniques

• Parametric optimization methods
• Topology optimization principles
• Multi-objective optimization for performance and cost
• Design for performance and reliability
• Tools and software for optimization

9. Failure Analysis and Prevention

• Common failure modes in mechanical systems: fatigue, fracture, wear, corrosion
• Root cause analysis techniques: FMEA, fault tree analysis
• Strategies for failure prevention: design improvements, material selection
• Risk assessment and mitigation in design

10. Sustainability in Mechanical Design

• Importance of sustainable design in engineering
• Sustainable material selection and resource efficiency
• Energy efficiency considerations in design
• Life cycle assessment (LCA) methodologies
• Environmental impact reduction strategies