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← TechnologyWithin a hydrostatic transmission system incorporating accumulators for energy regeneration, which risk significantly increases when thermal expansion causes excessive accumulator pressure?
A)Valve stiction and sluggish actuation✓
B)Increased fluid bulk modulus anomalies
C)Reduced pump volumetric efficiencies
D)Elevated cyclic structural fatigue limits
💡 Explanation
Valve stiction increases due to increased static friction from elevated pressure causing the valve spool to bind. The **squeeze film effect** is hampered because increased pressure overcomes the separating fluid forces; therefore response slows causing valve stiction rather than optimized fluidic damping.
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