Which action directly contributes to improving efficiency by reducing resistance in a high-speed robotic system?

• A. Reduce friction through lubrication and smoother bearing surfaces
• B. Increase payload weight
• C. Increase acceleration torque
• D. Use abrupt path segments

Answer: (A)

Reducing friction in moving parts directly lowers the mechanical resistance that a high-speed robotic system has to overcome. When surfaces rub against each other, energy is lost as heat and wear. Lubrication lowers the friction coefficient between these surfaces and smooth bearing surfaces reduce micro-wear and stick-slip, allowing the system to move more freely with less input energy. This improves overall efficiency because more of the applied power goes into productive motion rather than wasted heat.

Increasing payload weight would raise inertia and additional contact loads, which actually increases resistance and energy losses rather than reducing them. Increasing acceleration torque adds energy demand without addressing internal friction, potentially causing more dissipation through heat. Using abrupt path segments introduces jerks and dynamic losses, harming efficiency rather than helping it.

So, focusing on lubrication and smoother bearing surfaces directly tackles the resistive forces inside the mechanism, making high-speed motion more efficient.