Which risk increases when a hydraulic actuator operates at a cycling frequency near its hydraulic resonance?

💡 Explanation

When operating near hydraulic resonance, the actuator's fluid pressure fluctuates intensely because constructive interference amplifies pressure waves, creating regions where pressure momentarily drops below fluid vapor pressure, causing cavitation. Therefore, cavitation damage risk rises, rather than wear, overheating or valve locking which require entirely different stressor conditions.

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