1. What is Bending Moment in Spiral Spring?

Bending moment in spiral spring is the reaction induced in a spiral spring when an external force or moment is applied to the element, causing the element to bend. It represents the internal moment that resists the bending deformation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( M \) — Bending moment in spiral spring (N·m)
• \( P \) — Force on spiral spring (N)
• \( r \) — Distance of CG of Spiral Spring from Outer End (m)

Explanation: The bending moment is calculated as the product of the applied force and the distance from the center of gravity of the spiral spring.

3. Importance of Bending Moment Calculation

Details: Accurate bending moment calculation is crucial for designing spiral springs, determining stress distribution, ensuring structural integrity, and predicting spring behavior under load.

4. Using the Calculator

Tips: Enter force in Newtons (N) and distance in meters (m). Both values must be positive numbers greater than zero for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for input values?
A: Force should be in Newtons (N) and distance should be in meters (m) for accurate results in N·m.

Q2: Can this calculator be used for other types of springs?
A: This specific formula is designed for spiral springs. Other spring types may require different calculations.

Q3: What is the significance of the center of gravity distance?
A: The distance from the center of gravity determines the lever arm for the applied force, directly affecting the bending moment magnitude.

Q4: How does bending moment affect spring performance?
A: Bending moment influences stress distribution, fatigue life, and the spring's ability to store and release energy efficiently.

Q5: Are there limitations to this calculation?
A: This calculation assumes ideal conditions and may need adjustments for complex geometries, material non-linearities, or dynamic loading conditions.