After weeks of calculations and determining various frictions, we have finally decided on a motor to use in the bogies as seen in the link below. Due to the lower power and high torque requirements needed for the bogie to move under solar power, the bogie itself will move quite slowly with the use of these motors. Although as we process further into the semester, the gearing can be altered to make the machine go faster than previously calculated due to having a lighter load than originally estimated (600lbs).
Motor
It should be noted that this motor will be geared to run at 45Nm at about 8rpm, running at 4 amps and 24 volts per motor. These motors already have gear boxes attached, in this case planetary which allows for the greatest gear reduction given the size. Due to the length of the motor, a few beveled gears will be needed to change the direction of the rotation, allowing for a chain to drive the wheels of the bogie. The brake will also be mounted to the shaft driving the chain and the caliper in a similar way. I am still working on the cad models for everything and those should be done over the weekend.
Further research is needed for finding a master cylinder for the brake caliper as well as a reservoir for the brake fluid.
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