Podcast
Questions and Answers
Which of the following design criteria must be considered when designing a Jib Crane?
Which of the following design criteria must be considered when designing a Jib Crane?
- Fatigue design (correct)
- Sound absorption
- Corrosion resistance
- Thermal conductivity
What is the intended purpose of Spring A and Spring B in the Jib Crane?
What is the intended purpose of Spring A and Spring B in the Jib Crane?
- Both are intended for tensile forces
- Spring A is intended for compressive forces and Spring B is intended for tensile forces
- Spring A is intended for tensile forces and Spring B is intended for compressive forces (correct)
- Both are intended for compressive forces
What are the design requirements for Spring B in terms of load range and angle between the arms?
What are the design requirements for Spring B in terms of load range and angle between the arms?
- Load range of 5kg to 50kg and an angle of 30° between the arms
- Load range of 15kg to 150kg and an angle of 60° between the arms
- Load range of 7kg to 75kg and an angle of 40° between the arms (correct)
- Load range of 10kg to 100kg and an angle of 50° between the arms
Study Notes
- A Jib Crane is carrying a container with the help of Spring A and Spring B members.
- The container is spilling sand over the ground.
- Spring A and Spring B are intended for tensile and compressive forces, respectively.
- The maximum and minimum weight carried by the Jib Crane varies during the discharge operation.
- Design criteria include static design, fatigue design, buckling, resonance, and permanent set.
- A free body diagram must be constructed to comprehend loading circumstances and spring types.
- Spring B must be designed for a load range of 7kg to 75kg and an angle of 40° between the arms.
- Spring A must have a maximum deflection of 18mm and be designed for full-loading.
- Both springs must be made of hard drawn material and have a 99.99% reliability and a factor of safety of 2.25.
- Design details such as wire and coil diameters, spring rates, spring lengths, and minimum active coil numbers must be provided.
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Description
Test your knowledge on designing Jib Crane springs with this quiz! Learn about the different criteria involved in designing springs for tensile and compressive forces, including static design, fatigue design, buckling, resonance, and permanent set. Understand the importance of constructing a free body diagram to comprehend loading circumstances and spring types. Challenge yourself to design Spring A and Spring B based on specific load ranges, deflection limits, and material reliability and safety factors. Don't miss out on the opportunity to hone your skills
