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!
Applied load shall elongate the spring:
Design a close coiled helical spring which shall deflect 100 mm under a load of 600 N. The radius of the coil is 6 times the wire diameter. The maximum shear stress is not to exceed 8 MPa. G = 80 GPa. What suddenly applied load shall elongate the spring by 100 mm?
Solution
Δ = 100 mm, W = 600 N, R = 6d, τmax = 80 N/mm2 ,
G = 90 GPa = 80 × 103 N/mm2
τmax = 16 W R / π d3
⇒ 80 = 16 × 600 × (6d )/ π d 3
∴ d = 15.14 mm
R = 6d = 90.84 mm
Δ= 64 W R3 n / Gd 4
⇒ 100 =64 × 600 × 90.843 × n/(80 × 103 ) (15.14)4
= n = 14.6
A suddenly applied load shall cause double the stress caused by same load if applied gradually. Therefore, in this case if same stress is to be induced in spring wire cross-section by suddenly applied load it shall be W/2 = 600/2 = 300 N .
Compare the hardenability of Ferrous Alloys vs Non-Ferrous Alloys
Figure shows a reinforced concrete framed building subjected to earthquake ground motion. The floor is rigid with the mass of each floor is shown in the figure. Formulate the equat
Find out the motion of the system: Block (A) of mass M A = 40 kg is resting on coarse table having coefficient of friction = 0.1. This is tied up with an inextensible rope (
These are differentiated from hoists by the fact that the operator rides with the load. There are many different types of drives for such elevators but in general electric
crowning of pulley
Pressure Vessel materials shall be as specified on the Vessel Data Sheet. All attachments to vessels shall be of the same ‘P Number' material as that for the pressure envelope,
Specifi c Heat: The specific Heat of a solid or liquid can be usually defined as heat required for raising unit mass through one degree temperature rise. That is, dQ = m
200 50
Electrical System: Electrical system consists of a battery, spark plug, lighting system, ignition system, charging system and electricity generator. These components of electrical
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