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Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis. It is a critical dimension in crankshaft design that affects strength and durability.
The calculator uses the formula:
Where:
Explanation: This formula provides a standard engineering relationship between the width and thickness of a crank web in a center crankshaft at top dead center position.
Details: Proper calculation of crank web thickness is essential for ensuring the crankshaft can withstand the mechanical stresses and torsional forces experienced during engine operation, preventing failure and ensuring longevity.
Tips: Enter the width of the crank web in meters. The value must be a positive number greater than zero.
Q1: Why is the factor 0.614 used in the formula?
A: This factor is derived from engineering standards and empirical data to provide an optimal thickness-to-width ratio for crank web design.
Q2: What are typical values for crank web width?
A: Crank web width varies significantly based on engine size and application, typically ranging from a few centimeters in small engines to over 20 cm in large industrial engines.
Q3: Does this formula apply to all types of crankshafts?
A: This specific formula is designed for center crankshafts at top dead center position. Other crankshaft configurations may require different calculations.
Q4: How does material strength affect crank web dimensions?
A: While this formula provides a dimensional relationship, the actual required dimensions may vary based on the material's tensile strength, fatigue resistance, and other mechanical properties.
Q5: Should safety factors be applied to this calculation?
A: Yes, engineering designs typically incorporate safety factors based on application requirements, operating conditions, and regulatory standards.