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A railway wagon of mass m tonnes and moving with a speed of v per hour has to be stopped by three buffer springs in which the kimum compression allowed is ô mm. The mean diameter of the is five times the diameter of spring wire. Permissible shear stress

A railway wagon of mass m tonnes and moving with a speed of v per hour has to be stopped by three buffer springs in which the kimum compression allowed is ô mm. The mean diameter of the is five times the diameter of spring wire. Permissible shear stress

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Q2. A railway wagon of mass m tonnes and moving with a speed of v km per hour has to be stopped by three buffer springs in which the maximum compression allowed is ò mm. The mean diameter of the coil is five times the diameter of spring wire. Permissible shear stress for the material of the spring 610 MPa and its modulus of rigidity 80 kN/mm?. Find: 1.Maximum load on each spring, 2. Diameter of spring wire, 3. The mean diameter of the spring coil. 4. Number of turns of the spring, assuming the ends of the spring to be squared and ground, 5. Free length of the spring and 6. Pitch of the coil. m V 20 6.84 210
Transcribed Image Text:Q2. A railway wagon of mass m tonnes and moving with a speed of v km per hour has to be stopped by three buffer springs in which the maximum compression allowed is ò mm. The mean diameter of the coil is five times the diameter of spring wire. Permissible shear stress for the material of the spring 610 MPa and its modulus of rigidity 80 kN/mm?. Find: 1.Maximum load on each spring, 2. Diameter of spring wire, 3. The mean diameter of the spring coil. 4. Number of turns of the spring, assuming the ends of the spring to be squared and ground, 5. Free length of the spring and 6. Pitch of the coil. m V 20 6.84 210
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