Question

7- List two most desired properties for following engineered components:

Blade for industrial scale on-shore wind turbine

Vertical mount of industrial scale off-shore wind turbine

Gear teeth used in wind turbine driver

Text Book- The Science and Engineering of Materials, Askeland et al. (seven edition

Home Work- # 6 for Chapter 6

please type your answe in the computer

Answer 1

Blade for industrial scale on-shore wind turbine

The blade of the industrial scale on shore wind turbine should have shape stability, which corresponds to the minimum deflection of the wind blades under wind load. The shape stability is increased by increasing the moment of inertia and the flexural stiffness of the blades.

The blade must be corrosion resistant to be able to withstand the harsh shore climatic conditions. Corrosion can have a significant impact on the strength and aerodynamic properties of the blade.

Vertical mount of industrial scale off-shore wind turbine

The vertical mount should have sufficient strength to resist the axial loading, torsiona and bending moment.

The mount should have necessary stiffness to resist deflections. Deflection is represented by the modulus of elasticity and can be controlled by geometry.

Gear teeth used in wind turbine driver

The gear teeth used in wind turbine should have

• High endurance strength to withstand dynamic loads.
• Low coefficient of friction and less wear and tear
• Good manufacturing ability