Bending Moment In Crankweb Of Side Crankshaft Due To Radial Thrust For Max Torque Given Stress Calculator

Formula Used:

\[ M_{br} = \frac{\sigma_{br} \times t^2 \times w}{6} \]

Bending Stress in Crankweb Due to Radial Force (σ_br):

Thickness of Crank Web (t):

Width of Crank Web (w):

Bending Moment in Crankweb Due to Radial Force (M_br):

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1. What is Bending Moment in Crankweb Due to Radial Force?

The bending moment in crankweb due to radial force is the bending moment generated in the crankweb (the portion of a crank between the crankpin and the shaft) due to the radial component of force acting on the connecting rod at the crank pin during maximum torque conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ M_{br} = \frac{\sigma_{br} \times t^2 \times w}{6} \]

Where:

\( M_{br} \) — Bending moment in crankweb due to radial force (N·m)
\( \sigma_{br} \) — Bending stress in crankweb due to radial force (Pa)
\( t \) — Thickness of crank web (m)
\( w \) — Width of crank web (m)

Explanation: This formula calculates the bending moment based on the bending stress and the geometric properties of the crank web.

3. Importance of Bending Moment Calculation

Details: Accurate calculation of bending moment is crucial for designing crankshafts that can withstand the forces generated during engine operation, ensuring structural integrity and preventing mechanical failure.

4. Using the Calculator

Tips: Enter bending stress in Pascals (Pa), thickness and width in meters (m). All values must be positive and valid for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is the significance of radial force in crankshaft design?
A: Radial force is a critical component that creates bending moments in the crankweb, affecting the structural design and fatigue life of the crankshaft.

Q2: How does crank web geometry affect bending moment?
A: Both thickness and width of the crank web significantly influence the bending moment capacity, with thickness having a squared relationship in the calculation.

Q3: When is maximum bending moment typically experienced?
A: Maximum bending moment usually occurs during maximum torque conditions when the radial component of force on the connecting rod is at its peak.

Q4: Are there material considerations for this calculation?
A: Yes, the bending stress value used in the calculation depends on the material properties and the safety factors applied in the design.

Q5: How does this relate to overall crankshaft design?
A: This calculation is part of the comprehensive stress analysis required for designing crankshafts that can withstand operational loads throughout their service life.