What are the causes of motor noise and how to deal with it?
2 Answers
Hearing obvious rolling body rolling and vibration sounds indicates excessive bearing clearance or severe wear, requiring replacement. The following is a related introduction about motors: 1. Working principle: The direction of conductor force is determined by the left-hand rule. This pair of electromagnetic forces forms a torque acting on the armature, which is called electromagnetic torque in rotating motors. The direction of the torque is counterclockwise, attempting to make the armature rotate counterclockwise. If this electromagnetic torque can overcome the resistance torque on the armature (such as resistance torque caused by friction and other load torques), the armature can rotate counterclockwise. 2. DC motor: The excitation method of a DC motor refers to how to supply power to the excitation winding, generate excitation magnetomotive force, and establish the main magnetic field.
I've been driving for most of my life and have encountered motor noise issues several times. Common causes include worn-out bearings producing a humming sound or loose wiring connections causing a buzzing noise. The solution is straightforward: when you hear unusual noises while driving, pull over immediately—don't push through. First, check the wiring near the motor for any signs of detachment or scorching; you can also feel with your hand to see if the temperature is unusually high. If it's just a minor issue, like excessive dust, try cleaning it with an air gun. If the noise persists, head to a reliable repair shop promptly—having a mechanic replace the bearing or tighten the connections will likely fix the problem. Avoid disassembling it yourself to prevent further damage; safety comes first, and ignoring small issues can lead to major accidents. When washing your car, take a moment to wipe down the motor casing to prevent dust buildup and avoid future trouble.
