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4 cards from this section. Quick, good the night before a test.
What is tractive effort?
Think about the force used to pull or drive machinery.
Name one factor affecting tractive effort.
Consider what happens when a wheel rolls on a surface.
What is tractive effort?
Remember it's about keeping something moving.
True or False: Only rolling resistance affects tractive effort.
Think about what happens in soft versus hard ground.
A backhoe weighs 25 tons, and the rolling resistance is 80 kg per ton. If it's working on a soft soil surface that causes a penetration of 5 cm, calculate the total tractive effort needed.
Add the rolling force to the force from penetration.
Consider a bulldozer with a gross weight of 60,000 kg, having a rolling resistance of 30 kg/ton. If it sinks by 10 cm in unstable terrain, how much force will be needed to keep it moving?
Use rolling resistance and penetration resistance calculations as separate parts.
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