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
Spray Transfer In a gas shield of argon or argon rich mixture [i.e., Ar+CO 2 gas mixture containing more than 80 % argon] the metal transfer changes from globular to spray typ
Q. Mechanical Design Calculations? The Mechanical Design Engineer/Specialist shall be responsible for mechanical design calculations that are required to ensure that the end pr
Study literature and give a discussion of the applicability of the continuum mechanics hypothesis to the nano-scale mechanics (solids and fluids). Your paper must be detailed but c
Lasers with Solid State Lasing Mediums For an active medium, the solid state laser uses lasing ions which are suspended in a rod shaped solid matrix. These "dopants" in the rod
What is the face cone. Difference between tooth face and face cone?
Determine the Forces On Bar Two bars and a cable are used to support a block as shown. The two bars have negligible weight and the pulley is free to rotate. The mass of the pu
A steel dia 10 mm passes through a brass tube of internal dia 15mm and external dia is 25 mm. The bolt is tightened by a nut. The length of tube is reduced by 1.5mm and the length
What is the amount of air is supplied to engine via turbochargers and how their sizes vary from engine to engine ?
This assignment will simulate large deformations (nonlinear geometry) and occurrence of necking and buckling due to static tensile and compressive loading of a given elastic-plasti
Q. How can we use of Shrinkage allowance? Since metal shrinks on solidification and contracts further on cooling to room temperature, linear dimensions of the pattern is increa
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