Design of Power Transmitting Shafts Numerical 2 Part 1 - Design of Shaft, Keys & Couplings

TL;DR

Solving a numerical problem on designing a power transmission shaft with pulleys and bearings involving tension and load calculations.

Transcript

click the bell icon to get latest videos from akira hello friends welcome back to the subject of machine design 1 we are right now learning about the design of different shafts in the last lecture we have seen the numerical based on the design of power transmission shop let us move ahead with the numerical number 2 which is associated with power tr... Read More

Key Insights

• ✊ Power transmission shaft design involves considering bearings, pulleys, and load calculations.
• 🥳 Tension ratios between pulleys play a crucial role in determining the design.
• 🎨 Material properties and rigidity constants are essential for shaft design.
• 🦺 Allowable stresses help determine the safe stress levels in the shaft material.
• ✊ Torque calculations are crucial for designing the power transmission shaft.
• ❓ Understanding tensions between pulleys aids in determining load distribution.
• 🏋️ Total downward forces on pulleys are calculated by summing tensions and weights.

Questions & Answers

Q: What are the key components involved in designing a power transmission shaft?

Designing a power transmission shaft involves considering bearings, pulleys, load calculations, tension ratios, material properties, rigidity constants, and allowable stresses.

Q: How is tension between pulleys calculated in power transmission shaft design?

Tension between pulleys is calculated using the difference in tensions multiplied by the radius of the pulleys, with one tension being tight side tension and the other being slack side tension.

Q: What factors need to be considered for shaft design apart from bending and torsion?

Apart from bending and torsion, shaft design also needs to consider rigidity to ensure twisting does not exceed a specified limit, along with material properties and allowable stresses.

Q: How is the total downward force on a pulley calculated in power transmission shaft design?

The total downward force on a pulley is calculated by adding the tensions in the belt, the weight of the pulley, and any additional forces acting vertically downwards on the pulley.

Summary & Key Takeaways

• Learning about designing power transmission shafts with pulleys and bearings.

• Solving a numerical problem involving shaft design, tension calculations, and load analysis.

• Using material properties, rigidity constants, and allowable stresses for shaft design.