Engineering Mechanics
Topic 1: Mechanics and Force System
- Simple machine
- Compound machine
- Load
- Effort
- Mechanical advantage
- Velocity ratio
- Input of a machine
- Output of a machine
- Efficiency of a machine
- Ideal machine
- Ideal effort
- Ideal load
- Load lost in friction
- Effort lost in friction
- Law of machine
- Maximum mechanical advantage
- Maximum efficiency of a machine
- Reversibility of a machine
- Condition for reversibility of a machine
- Self locking machine
1.3 Velocity Ratio for simple machines
- Simple axle and wheel
- differential axle and wheel
- Weston’s differential pulley block
- single purchase crab
- double purchase crab
- worm and worm wheel
- geared pulley block
- screw jack
- calculation of M.A.
- efficiency
Topic 2: Force systems
- Definitions of mechanics
- Engineering mechanics
- Statics
- Dynamics
- Kinetics
- Kinematics
- Rigid body
- Classification of force system according to plane co-planar
- Classification of force system according to plane non co-planar
- Co-linear force system
- Concurrent force system
- Non concurrent force system
- Parallel force system
- Like parallel force system
- Unlike parallel force system
- Definition of a force
- S.I. unit of a force
- Representation of a force by vector
- Bow’s notation method
- Characteristics of a force
- Effects of a force
- Principle of transmissibility
2.2 Resolution of a force and Moment of a force:
- Definition of resolution of force
- Definition of moment of force
- Method of resolution
- S. I. unit of moment
- Classification of moments
- Sign convention
- Varignon’s theorem of moment
- Uses of Varignon’s theorem
- Definition of couple
- S.I. unit of couple
- Properties of couple with example