Which risk dramatically increases when hydraulic actuator's piston seal fails in closed-loop system?

💡 Explanation

When piston seal fails in a closed-loop system, internal leakage causes unintended pressure deviations because feedback controller incorrectly compensates, driving system instablility and resulting uncontrolled oscillations. Therefore unstable oscillation becomes likely, rather over-heating or cavitation which demand higher leak rates or different mechanisms.

• Which risk is exacerbated when excessive chlorides permeate reinforced concrete structures?
• Which risk increases in a robotic arm actuator utilising force control without implementing a backstepping algorithm?
• Which risk increases when piston dwell time is reduced in an internal combustion engine?
• Which risk significantly increases when an internal combustion engine piston ring fails to maintain adequate oil film?
• Which risk increases when a proportional valve in a hydraulic servo system experiences excessive internal leakage?
• Which risk increases when an antenna receives excessive multipath signals?