Specifications

CT Corsair Final Report May 2, 2014
19
The next simulation analyzed was the simulator pitch and roll. For this analysis, it is still
assumed that all three motors provide equal force to induce. The free body diagrams were
derived and are shown in Figure 19.
In this diagram, Point A is the platform pivot point, Point M is the motor output shaft, is the
weight of the platform assembly, is the force of the pushrod, is the length from Point A to
the pushrod, is the length of the cam, is the angle between the pushrod and the cam, is the
angle between the platform and the pushrod, is the angle between the horizontal plane and the
platform, is the angle between the horizontal plane and the cam and is the motor torque.
By summing the moments about Point A and Point M the following two equations are
established.
(Equation 8)
(Equation 9)
Equation 8 was solved for the pushrod force, and substituted into Equation 9. The spring force
was substituted as derived in Equation 2b and Equation 3. This substitution yielded an equation
for the torque necessary to pitch or roll the simulator.
(Equation 10)
Figure 19. Free body diagram for torque analysis based on the pitch and roll of the simulator