What are the causes of resonance?
2 Answers
The causes of resonance include failure of the idle speed control system, deformation of the engine guard plate, or improper installation. Vehicle inspection before departure: Before setting off each day, conduct a comprehensive inspection of the vehicle, including checking for oil or water leaks, measuring tire pressure to ensure it is appropriate, inspecting the engine oil condition to verify its color is normal and the oil level is correct. Safe driving: Use seat belts correctly; in the event of a severe collision, the protection provided by seat belts is no less than that of airbags. Avoid driving while fatigued and take a break every 2 hours. Traffic rules compliance: Especially on highways, do not speed. Speeding not only risks penalties from traffic police but, more importantly, is unsafe.
Resonance occurs when the natural vibration frequency of a certain part of the vehicle matches the frequency of external vibrations, much like how kicking a swing in rhythm amplifies its motion. In cars, common causes include vibration waves generated by engine ignition imbalance, or aging suspension dampers losing their cushioning effect and failing to absorb road impacts. Uneven tire wear or deformed wheel hubs can lead to abnormal rotational frequencies, which are transmitted to the body structure through the suspension. Loose engine mounts or body fasteners can exacerbate the problem. If resonance is left unaddressed for a long time, parts are prone to fatigue damage, increasing fuel consumption and noise. I would recommend car owners to regularly check suspension elasticity, tire balance, and fastener condition, using simple tactile tests to identify vibration sources—such as steering wheel shaking, which could be a warning sign—and perform timely repairs to prevent worsening.
