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1. Introduction. Torque and Power Transmission. Most of rotary prime movers either motors or turbines use shaft to transfer the power. Bearings are required for support. Shaft failure analysis is critical. Shaft Design. Material Selection (usually steel, unless you have good reasons)
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Aug 3, 2021 · Learn how to design shafts for strength, rigidity and stiffness based on different types of loads and materials. Find out the critical locations, stress analysis, deflection, slope and manufacturing methods of shafts.
Learn how to design shafts for different types of loads, such as torque, bending, torsion and axial force. Find out the formulas, factors and examples for shaft materials, strength, rigidity and deflection.
- What Are Mechanical shafts?
- Types of shafts?
- Failure Modes For Shaft Design
- Key Principles of Shaft Design
- Shaft Design Consideration
- Shaft Design Process
A mechanical shaft is a mechanical power transmissionelement, usually circular in cross-section, either solid or hollow, which transmits torque and rotational motion from one device to another. Machine elements such as gears, pulleys, flywheels, clutches, and sprockets are mounted on various shaft types and are used to transmit power from the drivi...
Mechanical shafts are broadly categorized into the following four types. 1. Transmission shaft– The transmission shaft is one of the essential machine components that provides the axis of rotation and oscillation and regulates the motion geometry. 1. Axle shaft– An axle is a non-rotating version of a shaft that supports rotating pulleys and wheels ...
Fatigue failureForce-induced elastic deformation failureWear failureDuring the design stage of the shaft, the product designer should consider the following key principle. 1. Keep the shaft as short as possible and the bearing supports as close to the load vectors as possible. This will keep the shaft deflection and bending moments and increase resonance and critical speed. 2. Place shaft stress concentration point...
Form, fit, and function, including tolerancing – Within the embodiment of the design during theShaft material and treatmentShaft deflection and Rigidity – Deflection-based calculationShaft strength and stress – Strength bases calculationMaterial selectionGeometric layout designStress and strengthDeflection and rigidityShaft design involves consideration of the layout of features and components to be mounted on the shaft, specific dimensions and allowable tolerances, materials, deflection, frequency response, life and manufacturing constraints.
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Steps in the shaft design are: » Define shaft topology » Specify driving elements » Free body diagram » Select bearings » Consider shaft deflection and stress » Specify connections » Dimensions
Shaft Design. A shaft is the component of a mechanical device that transmits rotational motion and power. It is integral to any mechanical system in which power is transmitted from a prime mover, such as an electric motor or an engine, to other rotating parts of the system.
