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Q1: The figure (1) shows a single disc with both sides active clutch with the followin; Torque on clutch = 35.72 N.m ; Rotational speed of clutch= 80 rad/sec When the clutch disc are in contact (engaged) the spring will have a length= 65 mm When the clutch is disengaged the spring will have a length = 55 mm The normal force between the friction surfaces (clutch disc engaged) = 1500 N The force on springs when the clutch is disengaged = 2250 N The coefficient of friction = 0.25 & RoRi = 1.6 Number of springs around the pressure plate = 5 Number of active coils = 8 ; Spring index (C) = 6 Modulus of rigidity for spring material is G=79.3 GPa Use square and grounded ends for springs Fig. (1) |Choose the correct answer of following: 1. Find inner diameter of the clutch: B: 73.271 mm D: 31.751 mm A: 36.635 mm 5. Compute free length for spring: A: 80 mm C: 38.101 mm B: 60 mm 2. Find outer diameter of the clutch: C: 75 mm 6._Check for spring buckling: A: Buckling will happen 7. The shear stress in a single spring is: D: 85 mm A: 117.233 mm B: 57.151 mm C: 63.582 mm D: 58.616 mm 3. Compute spring rate: A: 13.636 N/mm B: 15 N/mm B: Buckling will not happen C: 34.615 N/mm D: 75 N/mm A: 4234.894 MPa B: 23.326 MPa 4. Compute wire diameter for spring: A: 1.426 mm C: 7.844 mm C: 139.961 MPa D: 209.967 MPa B: 15.688 mm D: 5.229 mm

Q1: The figure (1) shows a single disc with both sides active clutch with the followin; Torque on clutch = 35.72 N.m ; Rotational speed of clutch= 80 rad/sec When the clutch disc are in contact (engaged) the spring will have a length= 65 mm When the clutch is disengaged the spring will have a length = 55 mm The normal force between the friction surfaces (clutch disc engaged) = 1500 N The force on springs when the clutch is disengaged = 2250 N The coefficient of friction = 0.25 & RoRi = 1.6 Number of springs around the pressure plate = 5 Number of active coils = 8 ; Spring index (C) = 6 Modulus of rigidity for spring material is G=79.3 GPa Use square and grounded ends for springs Fig. (1) |Choose the correct answer of following: 1. Find inner diameter of the clutch: B: 73.271 mm D: 31.751 mm A: 36.635 mm 5. Compute free length for spring: A: 80 mm C: 38.101 mm B: 60 mm 2. Find outer diameter of the clutch: C: 75 mm 6._Check for spring buckling: A: Buckling will happen 7. The shear stress in a single spring is: D: 85 mm A: 117.233 mm B: 57.151 mm C: 63.582 mm D: 58.616 mm 3. Compute spring rate: A: 13.636 N/mm B: 15 N/mm B: Buckling will not happen C: 34.615 N/mm D: 75 N/mm A: 4234.894 MPa B: 23.326 MPa 4. Compute wire diameter for spring: A: 1.426 mm C: 7.844 mm C: 139.961 MPa D: 209.967 MPa B: 15.688 mm D: 5.229 mm

Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter2: Axially Loaded Members
Section: Chapter Questions
Problem 2.2.12P: A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal aim AB (length b = 30...
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Q1: The figure (1) shows a single disc with both sides active clutch with the followin; Torque on clutch = 35.72 N.m ; Rotational speed of clutch = 80 rad/sec When the clutch disc are in contact (engaged) the spring will have a length = 65 mm When the clutch is disengaged the spring will have a length = 55 mm The normal force between the friction surfaces (clutch disc engaged) = 1500 N The force on springs when the clutch is disengaged = 2250 N The coefficient of friction = 0.25 & Ro/R¡ = 1.6 Number of springs around the pressure plate = 5 Number of active coils = 8 ; Spring index (C) = 6 Modulus of rigidity for spring material is G=79.3 GPa Use square and grounded ends for springs Fig. (1) Choose the correct answer of following: 1. Find inner diameter of the clutch: A: 36.635 mm |B: 73.271 mm 5. Compute free length for spring: A: 80 mm C: 38.101 mm D: 31.751 mm B: 60 mm 2. Find outer diameter of the clutch: C: 75 mm 6._Check for spring buckling: A: Buckling will happen 7. The shear stress in a single spring is: D: 85 mm A: 117.233 mm B: 57.151 mm C: 63.582 mm D: 58.616 mm B: Buckling will not happen 3. Compute spring rate: A: 13.636 N/mm | B: 15 N/mm C: 34.615 N/mm 4._Compute wire diameter for spring: A: 1.426 mm D: 75 N/mm A: 4234.894 MPa B: 23.326 MPa C: 139.961 MPa D: 209.967 MPa B: 15.688 mm C: 7.844 mm D: 5.229 mm
Transcribed Image Text:Q1: The figure (1) shows a single disc with both sides active clutch with the followin; Torque on clutch = 35.72 N.m ; Rotational speed of clutch = 80 rad/sec When the clutch disc are in contact (engaged) the spring will have a length = 65 mm When the clutch is disengaged the spring will have a length = 55 mm The normal force between the friction surfaces (clutch disc engaged) = 1500 N The force on springs when the clutch is disengaged = 2250 N The coefficient of friction = 0.25 & Ro/R¡ = 1.6 Number of springs around the pressure plate = 5 Number of active coils = 8 ; Spring index (C) = 6 Modulus of rigidity for spring material is G=79.3 GPa Use square and grounded ends for springs Fig. (1) Choose the correct answer of following: 1. Find inner diameter of the clutch: A: 36.635 mm |B: 73.271 mm 5. Compute free length for spring: A: 80 mm C: 38.101 mm D: 31.751 mm B: 60 mm 2. Find outer diameter of the clutch: C: 75 mm 6._Check for spring buckling: A: Buckling will happen 7. The shear stress in a single spring is: D: 85 mm A: 117.233 mm B: 57.151 mm C: 63.582 mm D: 58.616 mm B: Buckling will not happen 3. Compute spring rate: A: 13.636 N/mm | B: 15 N/mm C: 34.615 N/mm 4._Compute wire diameter for spring: A: 1.426 mm D: 75 N/mm A: 4234.894 MPa B: 23.326 MPa C: 139.961 MPa D: 209.967 MPa B: 15.688 mm C: 7.844 mm D: 5.229 mm
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