Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Design the keys - Shear Keys:
A solid circular shaft is to transmit 200 kN at 200 rpm. If the maximum shear stress is not to exceed 80 n/mm2 design the shaft. Design the keys and discover number of 16 mm diameter bolt needed to connect coupling along with a bolt circle of 240 mm diameter.
Permissible stress in keys = 100 N/mm2
Permissible stress in bolts = 100 N/mm2
Solution
Length of the key = 200 mm
P = 200 kN N = 200 rpm Shaft
d = ?
P = 2π NT / 60
⇒200 × 103 = (2π × 200 × T) /60
∴ T = 9.5 × 103 N-m
T /J = τmax /R ∴ τ max = 16T/ π d 3
⇒ 80 × 106 = 16 × (9.5 × 10 ) / π d 3
∴ d = 0.085 m ≈ 85 mm
Shear Keys
T = 9.5 × 103 N-m
τ1 = 100 N/mm2
L = 200 mm = 0.2 m
T = τ1 L b R
⇒ 9.5 × 103 = (100 × 106 ) (0.2) b ( 0.085/2)
∴ b = 0.011 m ≈ 11 mm
Bolts
τ2 = 100 N/mm2
d = 16 mm
F = τ2 (π/4) d 2
= 100 × (π /4 )× 162 = 20106.2 N
R1 = 240 /2 = 120 mm = 0.12 m
T = η . F2 . R1
⇒ 9.5 × 103 = η × 20106.2 × 0.12
∴ η = 3.9 ≈ 4
Determine the stress in the meridional direction: A doubly curved shell of thickness 8 mm is filled through a liquid under an internal pressure of 2.0 N/mm 2 . At a specific p
Explain the Bar and Rod Drawing - cold drawing processes In case of bar drawing, hot drawn bars are at first pickled, washed and coated to prevent oxidation. Once it's done
What are the advantages of compound compression with intercooler over single stage compression? Explain with the help of schematic and P-h diagrams, the working of a two stage c
Write the types and functions of column. a) Explain surveying. Brie?y describe about the chain and accessories
Isothermal Transformation: Austenite is not normally converted in martensite instantly but the procedure continues for some time. Various steels take various time for full tr
Magnetic Susceptibility and Ferromagnetic Substances: Magnetic Susceptibility: The magnetic susceptibility (c) of a substance is defined as the ratio of the intensity of magn
Q. What is Holiday Detection? Each length of coated pipe shall be checked for holidays with a high quality, heavy duty, full wave rectified non pulsating direct current detecto
Design or Selecting a car heat exchanger.
Discover the maximum thickness required: A thin cylindrical vessel of 2 m diameter and 4 m length having a particular gas at a pressure of 1.65 N/mm 2 . If the allowable tensi
Maximum elastic torque: A rectangular section torsion member had dimension of 100mm by 200 mm and is built of a steel for which the shear yield point is τ y = 100 MPa. Find o
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd