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

Formula Used:

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

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

Width of Crank Web (w):

Thickness of Crank Web (t):

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

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

Bending Moment in Crankweb Due to Radial Force is the bending moment in the crankweb due to the radial component of force on connecting rod at crank pin. It represents the internal moment that resists the bending deformation caused by radial forces.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

\( M_{br} \) — Bending Moment in Crankweb Due to Radial Force (N·m)
\( \sigma_r \) — Bending Stress in Crankweb Due to Radial Force (Pa)
\( w \) — Width of Crank Web (m)
\( t \) — Thickness of Crank Web (m)

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

3. Importance of Bending Moment Calculation

Details: Accurate calculation of bending moment is crucial for designing and analyzing crankshafts, ensuring structural integrity, and preventing mechanical failures in engine components.

4. Using the Calculator

Tips: Enter bending stress in Pascals, width and thickness in meters. 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 forces are critical in crankshaft design as they create bending moments that can lead to fatigue failure if not properly accounted for in the design.

Q2: How does crank web geometry affect bending moment?
A: The width and thickness of the crank web directly influence its resistance to bending. Thicker and wider webs can withstand higher bending moments.

Q3: What are typical values for bending stress in crankwebs?
A: Bending stress values vary depending on engine size and application, but typically range from 50-200 MPa for automotive engines.

Q4: How is this calculation used in crankshaft design?
A: This calculation helps engineers determine the appropriate dimensions of crank webs to ensure they can withstand the bending moments generated during engine operation.

Q5: Are there safety factors applied to these calculations?
A: Yes, engineering designs typically include safety factors to account for material variations, manufacturing tolerances, and unexpected loading conditions.