Hi guys. I need some advice in this problem. Can u please help me? It is required to design a power screw device. The design should be robust, compact,and easily transported as a single unit. The estimated quantities are in region of 5000pieces per year. Input and output specifications arepresented bellow.Q = 20 kNMaximum screw pass: L = 200 mmAxial load: 1. Draw screw loading diagrams.2. Select materials for screw and nut.3. Determine the minimum diameter of thescrew.4. Select thread type. Determine the screwparameters.5. Check screw overhauling or self-locking.6. Calculate stresses in the screw body.7. Calculate the number of thread coils.8. Determine nut geometry.9. Estimate the efficiency.

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Answered: Hi guys. I need some advice in this…

Engineering

Mechanical Engineering

Hi guys. I need some advice in this problem. Can u please help me?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Subject is machine design
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• HOME WORK Design the elliptical cross-section of a belt pulley arm near the hub for the following specifications: The mean pulley diameter is (300 mm) and the (number of pulley arms are 4). The elliptical section has major axis twice the minor axis length. The tight and slack sides tension in the belt are (600 N and 200 N) respectively. Assume half number of arms transmit torque at any time and the load factor of 1.75 to account for dynamic effects on the pulley while transmitting torque. The permissible tensile stress for cast iron pulley material is 15 MPa. The pulley hub diameter is 60 mm. [Ans. a=40 mm, b₁= 20 mm]
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Design the elliptical cross-section of a belt pulley arm near the hub for the following specifications: The mean pulley diameter is 300 mm and the number of pulley arms are 4. The elliptical section has major axis twice the minor axis length. The tight and slack sides tension in the belt are 600 N and 200 N respectively. Assume half number of arms transmit torque at any time and the load factor of 1.75 to account for dynamic effects on the pulley while transmitting torque. The permissible tensile stress for cast iron pulley material is 15 MPa. The pulley hub diameter is 60 mm.
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