A local theater effects company has been contracted to provide the stage effects for the new Broadway Musical production of "Casper, the Friendly Ghosť". One of the effects involves an enormous ghost puppet, which is manipulated through wires attached to a large crosspiece. The crosspiece must support the substantial load of the puppet at the center of the main beam (Fecmter), as well as control the puppet motion with wires attached to the arms of the crosspiece, Fst. The central load problem is modeled as a simply supported beam, while the puppet control requires a large torque at the ends of the beam, which leads to a rotational deflection of the backbone, THETA (6). Since the

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Q9. A local theater effects company has been contracted to provide the stage effects for the
new Broadway Musical production of “Casper, the Friendly Ghosť". One of the effects
involves an enormous ghost puppet, which is manipulated through wires attached to a
large crosspiece. The crosspiece must support the substantial load of the puppet at the
center of the main beam (Fenter), as well as control the puppet motion with wires
attached to the arms of the crosspiece, Frnt. The central load problem is modeled as a
simply supported beam, while the puppet control requires a large torque at the ends of
the beam, which leads to a rotational deflection of the backbone, THETA (0). Since the
puppeteers must manipulate the crosspiece, its weight is of significant concem.
Identify the constraints for the above design case.
I.
Weight of the crosspiece
II.
Rotational deflection
Torque at the ends of the beam
Strength (support load)
III.
IV.
A. I and III
C. III and IV
B. I and II
D. II and IV
Transcribed Image Text:Q9. A local theater effects company has been contracted to provide the stage effects for the new Broadway Musical production of “Casper, the Friendly Ghosť". One of the effects involves an enormous ghost puppet, which is manipulated through wires attached to a large crosspiece. The crosspiece must support the substantial load of the puppet at the center of the main beam (Fenter), as well as control the puppet motion with wires attached to the arms of the crosspiece, Frnt. The central load problem is modeled as a simply supported beam, while the puppet control requires a large torque at the ends of the beam, which leads to a rotational deflection of the backbone, THETA (0). Since the puppeteers must manipulate the crosspiece, its weight is of significant concem. Identify the constraints for the above design case. I. Weight of the crosspiece II. Rotational deflection Torque at the ends of the beam Strength (support load) III. IV. A. I and III C. III and IV B. I and II D. II and IV
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