Which risk increases when cavitation occurs within the hydraulic actuator of an robotic arm?

💡 Explanation

When cavitation occurs, vapor bubbles form and collapse in the hydraulic fluid because pressure drops below vapor pressure. This causes inconsistent fluid volume displacement known as 'sponginess', diminishing the actuator's positional accuracy. Therefore, positional accuracy is reduced, rather than elevated temperature, increased energy consumption, or lubricant degradation, which are governed by diverse failure mechanisms.

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