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.

• Which risk increases when chloride ions penetrate a concrete bridge deck with embedded rebar?
• Which consequence results when insufficient tundish superheat causes incomplete metal flow from the tundish during continuous casting?
• Which consequence results when dispersion exceeds guard interval?
• Which outcome occurs when a refrigeration system's defrost cycle overheats?
• Which consequence results when over-voltages induce flashover inside switchgear circuits?
• Which circumstance will cause aircraft stall during flight?