Solar tracker calculation of torques and forces

AI Thread Summary
The discussion focuses on designing a dual-axis solar tracker for a final year project, specifically the calculation of forces, torques, and factors of safety (FOS). Key equations mentioned include F = ma for force and T = Jα for torque, emphasizing the need for basic statics and dynamics analysis. It is crucial to size the system for maximum acceleration and consider all resistances to motion, such as friction and gravity, to determine peak torque. After calculating these parameters, the motors and gear trains should be appropriately sized to match the required specifications. Proper analysis will ensure the solar tracker operates efficiently and effectively.
vassos_ael
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hi

i am designing a solar tracker for my final year project. its a dual axis solar tracker with two stepper motors one rotating a shaft and the other tilting a bar. i need help on calculating forces torques and finding the FOS. can anyone help me?
 

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You said "final year", didn't you? This is basic statics & dynamics analysis.
F = ma
T = Jα

Should be sized for maximum acceleration (increase from speed1 to speed2, then reverse to stop). Include every possible resistance to motion you can dream up (friction, gravity effects, efficiencies, any & all inertia effects) in order to size for "peak torque" on the rotational axes. Once you have that, then you size your motors, gear trains, etc., to match.
 
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