Width Of Crank Web Of Centre Crankshaft At TDC Position Given Compressive Stress Calculator

Formula Used:

\[ w = \frac{R_{v1}}{\sigma_c \times t} \]

Vertical Reaction at Bearing 1 (Rv1):

Compressive Stress in Crank Web Central Plane (σc):

Thickness of Crank Web (t):

Width of Crank Web (w):

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1. What is the Width of Crank Web Formula?

The formula calculates the required width of the crank web in a center crankshaft at Top Dead Center (TDC) position based on the vertical reaction force at bearing 1, compressive stress in the crank web central plane, and the thickness of the crank web.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ w = \frac{R_{v1}}{\sigma_c \times t} \]

Where:

\( w \) — Width of Crank Web (m)
\( R_{v1} \) — Vertical Reaction at Bearing 1 (N)
\( \sigma_c \) — Compressive Stress in Crank Web Central Plane (Pa)
\( t \) — Thickness of Crank Web (m)

Explanation: The formula determines the necessary width of the crank web to safely withstand the compressive forces acting on it at the TDC position.

3. Importance of Crank Web Width Calculation

Details: Proper calculation of crank web width is essential for ensuring the structural integrity and longevity of the crankshaft. It helps prevent mechanical failure due to excessive compressive stresses in the crank web.

4. Using the Calculator

Tips: Enter the vertical reaction force in Newtons, compressive stress in Pascals, and thickness in meters. All values must be positive and non-zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the crank web in a crankshaft?
A: The crank web is the portion of a crank between the crankpin and the shaft that provides structural support and transfers forces between components.

Q2: Why is TDC position important for this calculation?
A: The Top Dead Center position typically experiences maximum compressive forces, making it the critical position for stress analysis and design calculations.

Q3: What factors affect compressive stress in the crank web?
A: Engine load, combustion forces, rotational speed, and material properties all contribute to the compressive stress experienced by the crank web.

Q4: How does crank web width affect crankshaft performance?
A: Proper width ensures adequate strength to withstand operational stresses while maintaining optimal weight and balance of the crankshaft assembly.

Q5: Are there safety factors to consider in this calculation?
A: Yes, engineering practice typically includes appropriate safety factors to account for dynamic loads, material variations, and unexpected operating conditions.