Which risk increases when an engine crankshaft vibrates excessively at high RPM?

💡 Explanation

When a crankshaft vibrates excessively at high RPM, harmonic resonance can occur because the crankshaft's natural frequencies align with the engine's firing frequency, leading to amplified stress and fatigue failure. Therefore harmonic resonance is the increased risk, rather than oil viscosity, pre-ignition, or valve float, which involve different mechanical causes.

• Which consequence results when die mismatch happens during drop forging?
• Which risk increases when cyclic combustion pressure variations occur in a four-cylinder engine crankshaft.?
• Which risk increases when stoichiometric fuel mixture fails?
• Which outcome occurs when excessive charge cooling condensation introduces liquid fuel droplets into an Otto cycle's combustion chamber post fuel injection?
• Which outcome occurs when the evaporator in an absorption chiller experiences crystallization of lithium bromide?
• Which outcome occurs when a collaborative robot arm's inverse kinematics solution oscillates due to workspace singularity?