À three-bladed wind turbine has a small, unbalanced mass m =0.3 kg, located at an eccentricity e-0.3m in the plane of the blades. Consider the body and blades of the turbine to be on top of the supporting shaft, R<

À three-bladed wind turbine has a small, unbalanced mass m =0.3 kg, located at an eccentricity e-0.3m in the plane of the blades. Consider the body and blades of the turbine to be on top of the supporting shaft, R<

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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O 691.4 N
O 80.5 N
O 1678.7 N
O 1133.5 N

A three-bladed wind turbine has a small, unbalanced mass m =0.3 kg, located at an eccentricity
e=0.3m in the plane of the blades. Consider the body and blades of the turbine to be on top of the
supporting shaft, R<<h. The blades rotate at an angular velocity of w. The supporting shaft can be
modeled as a cantilever beam of height h, with a hollow steel cross-section area of outer diameter
0.1 m and an inner diameter 0.08 m, and h=8m, E=207GPA. Determine the force transmitted to the
base of the support (point A) if the unbalance. Assume the Mass of the turbine M360 kg and
rotating speed of the Turbine w=31.416 rad/s. Neglect any cause of damping.
The Moment of Inertia of a circular shaft is
I= (R R)
4.
h

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