Machine Design 7758D Home
Overview of Content
Background: Identify different materials used in machine drive shafts.
Select material alternatives for given conditions (for example -
thermal, fatigue, corrosion, wear, life). Factor of Safety, material
2. Tensile, shear, and bending strength: Apply standard formulas and
specifications to determine machine drive shaft sizes for various
power, deflection, torque and bending data.
Define problem / Produce design sketches / Evaluate forces and mode of
application to design shaft (for example axial, shear, bending) / Apply
standard formulas to strength and size analysis / Evaluate design,
material, fatigue, stress raiser and other factors to determine best
shaft design size.
3. Keys and pins: Fatigue, stress raisers and endurance: Apply standard
formulas and standard (tabulated) component data to determine machine
drive shaft sizes, key sizes, spline sizes and pin sizes.
4. Couplings: (Rigid): Determine shaft and coupler sizes / Choose
appropriate rigid connection / Use Australian Standard dimensions and
tolerances for pinned, keyed and rigid couplings.
Keys / Set screws / Pins / Flanged. (Flexible couplings): Universal, Direct flexible couplings
5. Belts: Selection. Assignment in the selection of appropriat drive
alternatives for various conditions and applications including speed,
loading, power, thermal, fatigue, corrosion, wear, life factors,etc
6. Chains: Selection
7. Gears: Spur, Helical, Bevel
8. Electric motors, reducers and prime movers: Select most appropriate
prime mover for a specific application. Select speed reducer for range
of applications from suppliers catalogues. Select electric drive motors
for range of applications from suppliers catalogues. Analyse
specifications for internal combustion engine for power drive
application analysis. Compare advantages and disadvantages of various
drives for various industrial applications.