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

Formula Used:

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

Vertical Reaction at Bearing 1 (Rv1):

Width of Crank Web (w):

Compressive Stress in Crank Web Central Plane (σc):

Thickness of Crank Web (t):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Thickness of Crank Web Calculation?

The thickness of crank web calculation determines the appropriate thickness of the crank web in a centre crankshaft at TDC position based on the vertical reaction force, web width, and compressive stress. This ensures structural integrity under operational loads.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

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

Explanation: The formula calculates the required thickness to withstand the compressive stress from the vertical reaction force distributed over the web width.

3. Importance of Crank Web Thickness Calculation

Details: Proper crank web thickness is crucial for crankshaft durability, preventing failure under high compressive loads, and ensuring optimal engine performance and longevity.

4. Using the Calculator

Tips: Enter vertical reaction force in newtons, web width in meters, and compressive stress in pascals. All values must be positive and non-zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect crank web thickness?
A: The main factors are the vertical reaction force at the bearing, the width of the crank web, and the allowable compressive stress in the material.

Q2: Why is compressive stress important in crank web design?
A: Compressive stress determines the material's ability to withstand crushing forces without deformation or failure, ensuring structural stability.

Q3: What are typical values for compressive stress in crank webs?
A: Values vary by material but typically range from 100-400 MPa for steel crankshafts, depending on the specific alloy and heat treatment.

Q4: How does TDC position affect the calculation?
A: At TDC position, the crank web experiences maximum compressive loads, making this the critical design condition for thickness calculation.

Q5: Can this calculator be used for other crankshaft types?
A: This specific formula is designed for centre crankshafts at TDC position. Other crankshaft types may require different calculations.