Specifications

CT Corsair Final Report May 2, 2014
18
The cam represented in green, the pushrod is red, and the platform blue. Using this model, the
cam was driven by in the positive and negative z-direction from -100° to +90° in increments of
10°. This range was selected based on the range of motion the cam can reach. At each increment
the angles and were measured in the 3D model. By plotting the relationship between these
angles in Microsoft Excel, and determining the line of best fit, two equations were established to
find angles and as a function of shown in Figure 17. These equations were used in a
MATLAB code to calculate the torque based on any and Equation 7.
Figure18. shows the torque curve for the range between -100° and 90° and shows that
maximum torque occurs when =0, when the cam and platform are perpendicular to the pushrod.
Achieving maximum torque at this point is valid because all of the pushrod force is
perpendicular to the cam which creates the largest force on the cam. After analysis the torque
required to lift the simulator in a vertical z-direction was found to be 2894.3 in-lbs.
Figure 18. Plot generated using MATLAB showing torque calculated at each . The maximum torque occurs at
Figure 17. Plot of relationships between and