Which mechanical issue is accelerated when a diesel engine crankshaft experiences torsional resonance at elevated RPM?

💡 Explanation

When torsional resonance occurs in a crankshaft at high RPM, it generates excessive cyclical stress because vibration is amplified at the resonant frequency, initiating fatigue crack propagation. Therefore, crankshaft fatigue failure is accelerated, rather than balancer degradation, rod buckling, or ring wear, which result from different stress types.

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