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For a conical bearing, 100 watt power gets dissipated when a shaft with maximum cone radius 10 cm turns with 600 rpm over a uniform fluid layer of thickness 0.1 cm. If semi-angle for the conical bearing is 30°, make calculations for the dynamic viscosity of the fluid (in SI units).
Correct answer is 'Range: 0.08 to 0.09'. Can you explain this answer?
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For a conical bearing, 100 watt power gets dissipated when a shaft wi...
Consider an elementary ring of bearing surface of radius r and thickness dh at a distance h from the cone apex. Then r = h tan α and bearing area of the elementary ring equals dA = 2πr (dh sec α)
= 2πh tan α dh sec α
Viscous shear stress,
Since the shaft has an angular velocity ω, The tangential velocity, u = ωr = ωh tan α
∴ Viscous shear stress,
Tangential resistance on the ring, dF = shear stress × area of the ring
Torque = moment of tangential resistance = dF × r = dF × h tan α
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For a conical bearing, 100 watt power gets dissipated when a shaft wi...
Consider an elementary ring of bearing surface of radius r and thickness dh at a distance h from the cone apex. Then r = h tan α and bearing area of the elementary ring equals dA = 2πr (dh sec α)
= 2πh tan α dh sec α
Viscous shear stress,
Since the shaft has an angular velocity ω, The tangential velocity, u = ωr = ωh tan α
∴ Viscous shear stress,
Tangential resistance on the ring, dF = shear stress × area of the ring
Torque = moment of tangential resistance = dF × r = dF × h tan α
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For a conical bearing, 100 watt power gets dissipated when a shaft with maximum cone radius 10 cm turns with 600 rpm over a uniform fluid layer of thickness 0.1 cm. If semi-angle for the conical bearing is 30°, make calculations for the dynamic viscosity of the fluid (in SI units).Correct answer is 'Range: 0.08 to 0.09'. Can you explain this answer?
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For a conical bearing, 100 watt power gets dissipated when a shaft with maximum cone radius 10 cm turns with 600 rpm over a uniform fluid layer of thickness 0.1 cm. If semi-angle for the conical bearing is 30°, make calculations for the dynamic viscosity of the fluid (in SI units).Correct answer is 'Range: 0.08 to 0.09'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about For a conical bearing, 100 watt power gets dissipated when a shaft with maximum cone radius 10 cm turns with 600 rpm over a uniform fluid layer of thickness 0.1 cm. If semi-angle for the conical bearing is 30°, make calculations for the dynamic viscosity of the fluid (in SI units).Correct answer is 'Range: 0.08 to 0.09'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a conical bearing, 100 watt power gets dissipated when a shaft with maximum cone radius 10 cm turns with 600 rpm over a uniform fluid layer of thickness 0.1 cm. If semi-angle for the conical bearing is 30°, make calculations for the dynamic viscosity of the fluid (in SI units).Correct answer is 'Range: 0.08 to 0.09'. Can you explain this answer?.
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