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5ft counter BARNHÀRT weght load chassis

5ft counter BARNHÀRT weght load chassis

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Crane Stability Analysis** An engineer is trying to determine whether her crane will tip over when attempting to lift a 15K load. Her crane has a 15K chassis and a 40K counterweight. Assume all other parts of the crane have negligible weight. *Answer all questions relative to the rotation point:* **1. How much torque is caused by the load?** - **Torque by the Load:** 375 K ft **2. How much torque is caused by the chassis?** - **Torque by the Chassis:** 150 K ft **3. How much torque is caused by the counterweight?** - **Torque by the Counterweight:** 600 K ft **4. What is the normal force on the rear (right) outriggers?** - **Normal Force on Rear (Right) Outriggers:** (Value to be entered) **5. What is the normal force on the front (left) outriggers?** - **Normal Force on Front (Left) Outriggers:** (Value to be entered) **Diagram Explanation:** The diagram on the right illustrates a crane in operation, showing the various components and forces involved: - **Crane Components:** - **Load:** Positioned at the far left, hanging from the crane's arm. - **Chassis:** Marked as “Barnhart” in the middle of the crane structure. - **Counterweight:** Located on the right end of the crane, opposite to where the load is hanging. - **Dimensions:** - The crane arm extends horizontally with the load suspended from it. - A vertical measurement of 5 ft is marked between the load and the point where it’s attached to the crane's arm. - **Outriggers:** - Indicated in green on both the front (left) and rear (right) ends of the crane. - The calculation of the forces on these outriggers is crucial for determining the stability and to prevent tipping. This analysis helps ensure safe lifting practices by calculating the moments and ensuring the crane remains stable during operation.
Transcribed Image Text:**Crane Stability Analysis** An engineer is trying to determine whether her crane will tip over when attempting to lift a 15K load. Her crane has a 15K chassis and a 40K counterweight. Assume all other parts of the crane have negligible weight. *Answer all questions relative to the rotation point:* **1. How much torque is caused by the load?** - **Torque by the Load:** 375 K ft **2. How much torque is caused by the chassis?** - **Torque by the Chassis:** 150 K ft **3. How much torque is caused by the counterweight?** - **Torque by the Counterweight:** 600 K ft **4. What is the normal force on the rear (right) outriggers?** - **Normal Force on Rear (Right) Outriggers:** (Value to be entered) **5. What is the normal force on the front (left) outriggers?** - **Normal Force on Front (Left) Outriggers:** (Value to be entered) **Diagram Explanation:** The diagram on the right illustrates a crane in operation, showing the various components and forces involved: - **Crane Components:** - **Load:** Positioned at the far left, hanging from the crane's arm. - **Chassis:** Marked as “Barnhart” in the middle of the crane structure. - **Counterweight:** Located on the right end of the crane, opposite to where the load is hanging. - **Dimensions:** - The crane arm extends horizontally with the load suspended from it. - A vertical measurement of 5 ft is marked between the load and the point where it’s attached to the crane's arm. - **Outriggers:** - Indicated in green on both the front (left) and rear (right) ends of the crane. - The calculation of the forces on these outriggers is crucial for determining the stability and to prevent tipping. This analysis helps ensure safe lifting practices by calculating the moments and ensuring the crane remains stable during operation.
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