Bending Moment In Horizantal Plane Of Centre Crankshaft Below Flywheel At TDC Due To Belt Tension Calculator

Formula Used:

\[ M_b = R_{h3} \times c_2 \]

Bending Moment at Crankshaft Under Flywheel (M_b):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Bending Moment in Horizontal Plane of Centre Crankshaft?

The bending moment at crankshaft under flywheel in horizontal plane is the moment that tends to bend the crankshaft when an external horizontal force is applied due to belt tension. It is calculated at the top dead center (TDC) position for maximum stress analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ M_b = R_{h3} \times c_2 \]

Where:

\( M_b \) — Bending Moment at Crankshaft Under Flywheel (N·m)
\( R_{h3} \) — Horizontal Reaction at Bearing 3 due to Belt (N)
\( c_2 \) — Centre Crankshaft Bearing3 Gap from Flywheel (m)

Explanation: The bending moment is calculated as the product of the horizontal reaction force at bearing 3 and the distance from this bearing to the flywheel centerline.

3. Importance of Bending Moment Calculation

Details: Accurate bending moment calculation is crucial for crankshaft design and analysis, ensuring structural integrity, proper material selection, and preventing fatigue failure under cyclic loading conditions.

4. Using the Calculator

Tips: Enter the horizontal reaction force in Newtons and the distance in meters. Both values must be positive numbers greater than zero for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is this bending moment calculation important?
A: It helps engineers determine the stress distribution in the crankshaft and ensure it can withstand operational loads without failure.

Q2: When is this calculation typically performed?
A: During crankshaft design phase, stress analysis, and when evaluating the impact of belt tension changes on crankshaft integrity.

Q3: What factors affect the horizontal reaction at bearing 3?
A: Belt tension, pulley arrangement, engine torque, and the mechanical properties of the belt system components.

Q4: Are there limitations to this calculation?
A: This calculation assumes static loading conditions and may need to be combined with dynamic analysis for complete crankshaft evaluation.

Q5: How does this relate to overall crankshaft design?
A: This bending moment calculation is one component of comprehensive crankshaft stress analysis that includes torsional, bending, and combined loading scenarios.