How do you design a shaft?
- Draw the bending moment diagram to find out the maximum bending moment (M) on the shaft.
- Calculate the area moment of inertia (I) for the shaft.
- Replace the maximum bending stress (Tb) with the given allowable stress for the shaft material.
- Calculate the radius of the shaft.
What are the various types of shafts?
Shafts are divides into four types.
- Transmission Shaft.
- Machine Shaft.
How is shaft calculated?
Inputs that we need to calculate shaft diameter
- τ = Torsional stress induced at the outer surface of the shaft (Maximum Shear stress).
- r = Radius of the shaft.
- T = Twisting Moment or Torque.
- J = Polar moment of inertia.
- C = Modulus of rigidity for the shaft material.
- l = Length of the shaft.
What should be the first property during design of shaft?
What should be the first property of the shaft design? Explanation: The shaft design should be such that the shaft must have enough mechanical strength. The strength should be such that it should withstand all loads without causing much residual strain.
Which stress is considered as basis for shaft design?
Shafts are designed on the basis of strength or rigidity or both. Design based on strength is to ensure that stress at any location of the shaft does not exceed the material yield stress.
What is the consideration for the design of the shaft Mcq?
Explanation: The shaft design should be such that the shaft must have enough mechanical strength. The strength should be such that it should withstand all loads without causing much residual strain. 4.
What are projects of engineering?
A “project” consists of a coordinated series of activities or tasks performed by engineers, designers, drafters and others from one or more engineering disciplines or departments.
What are shafts in geography?
Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom. When the top of the excavation is the ground surface, it is referred to as a shaft; when the top of the excavation is underground, it is called a winze or a sub-shaft.
How to design a drive shaft for a constant load?
Design Procedure 1 Draw the bending moment diagram to find out the maximum bending moment (M) on the shaft. 2 Calculate the area moment of inertia (I) for the shaft. 3 Replace the maximum bending stress (Tb) with the given allowable stress for the shaft material. 4 Calculate the radius of the shaft.
How is the shaft of a shaft designed?
In many cases, the shaft is to be designed from a rigidity point of view. G = Modulus of rigidity of the shaft material. The calculations need the modulus of rigidity of the material that makes up the shaft.
How is shaft design related to torsional shear?
Shaft Design Procedure Because of the simultaneous occurrence of torsional shear and normal stresses due to bending, the stress analysis of a shaft virtually always involves the use of a combined stress approach. The recommended approach for shaft design and analysis is the distortion energy theory of failure.
How is shaft design a function of inertia?
– They are a function of inertia. Inertia is a function of Geometry. For this reason, shaft design allows a consideration of stress first. Then, after tentative values for the shaft dimensions have been established, the determination of the deflections and slopes can be made.