DRIVETRAIN DESIGN
•Compactness
•Reliability
•Ease of Assembly
•Working Differential
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When designing the drivetrain, the main goal was to achieve the functionality of a differential while minimizing the amount of moving parts in the overall design. To eliminate certain parts and condense the design, the transmission was designed to be an immediate mate to the differential. The result is a well functioning drivetrain that can be assembled quickly.
minimizing the amount of moving parts in the overall design. To eliminate certain parts and condense the design, the transmission was designed to be an immediate mate to the differential. The result is a well functioning drivetrain that can be assembled quickly.
STEERING DESIGN
•Simplicity
•Reliability
•Adjustability
With most of the scope focused on the drivetrain of the vehicle, the main objective of the steering is to provide simple, functional steering to the vehicle. The steering utilizes the movement of a servo motor that turns relative to the positioning of the controller, moving the steering rod side to side.
R.A.D.D.
The following displays the analysis done to determine the drive train gear ratio and rough gear design. This was done using the R.A.D.D. method of construction by first determining a design requirement and performing analyses to satisfy that requirement.
In this R.A.D.D. a minimum shaft diameter needed to be determined using the torque of the motor. This was calculated using "worst case scenario" parameters therefore maximum motor power rating, no gear losses, and wheel stoppage. Using the equation for torsion, and the modulus of elasticity it was found that the minimum allowable radius is 1.1 mm.
ANALYSES
