Weight on Wheels Given Total Road Resistance Calculator

Weight on Wheels Formula:

\[ W = \frac{T}{0.02 + 0.015 \times p + 0.01 \times PG} \]

Weight on Wheels (W):

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1. What is Weight on Wheels?

Weight on Wheels is the weight of an equipment resting on its wheels. It is a crucial parameter in vehicle dynamics and road resistance calculations, representing the actual load supported by the wheels during operation.

2. How Does the Calculator Work?

The calculator uses the Weight on Wheels formula:

\[ W = \frac{T}{0.02 + 0.015 \times p + 0.01 \times PG} \]

Where:

\( W \) — Weight on Wheels (Kilogram)
\( T \) — Total Road Resistance (Newton)
\( p \) — Tire Penetration (Meter)
\( PG \) — Percent Grade (%)

Explanation: The formula calculates the weight on wheels by dividing the total road resistance by the sum of three components: a base resistance coefficient (0.02), tire penetration factor (0.015 × p), and grade resistance factor (0.01 × PG).

3. Importance of Weight on Wheels Calculation

Details: Accurate calculation of weight on wheels is essential for vehicle design, performance analysis, and determining the equipment's ability to overcome various road resistances. It helps in optimizing vehicle efficiency and ensuring safe operation under different terrain conditions.

4. Using the Calculator

Tips: Enter total road resistance in Newtons, tire penetration in meters, and percent grade as a percentage. All values must be valid (resistance > 0, penetration ≥ 0, grade ≥ 0).

5. Frequently Asked Questions (FAQ)

Q1: What factors affect total road resistance?
A: Total road resistance is influenced by rolling resistance, grade resistance, air resistance, and acceleration resistance, with rolling and grade resistances being the primary components in this calculation.

Q2: How does tire penetration affect weight on wheels?
A: Increased tire penetration typically increases rolling resistance, which in turn affects the calculated weight on wheels for a given total resistance.

Q3: What is the significance of percent grade in this calculation?
A: Percent grade represents the slope inclination and directly contributes to grade resistance, which is a component of total road resistance.

Q4: Are there limitations to this equation?
A: This equation provides an estimation and may not account for all factors such as varying surface conditions, tire characteristics, or dynamic effects during acceleration/deceleration.

Q5: Can this formula be used for all types of vehicles?
A: While the fundamental principles apply broadly, specific coefficients may need adjustment for different vehicle types, tire designs, or operating conditions.