As the most widely used power source in industrial applications, the operation efficiency and stability of the motor are directly related to the reliability and economy of the entire production system. The vibration problem during the operation of the motor will not only lead to reduced energy efficiency and shortened life, but also may cause more serious equipment failure, which will bring huge economic losses to the enterprise. Therefore, the in-depth analysis and effective treatment of motor vibration is of great practical significance.
Motor vibration is the result of a variety of internal and external factors, mainly including electromagnetic force excitation, mechanical imbalance, bearing damage, etc. The electromagnetic force excitation force is caused by the magnetic density fluctuation in the air gap of the motor, especially when the operating frequency of the motor is close to the natural frequency of its structure, which will cause the resonance phenomenon, resulting in a significant increase in the vibration amplitude. Mechanical imbalance refers to the uneven distribution of the mass of the rotor or stator, resulting in an unbalanced centrifugal force during rotation. Bearing damage or wear is also one of the common causes of motor vibration.
Motor vibration not only causes noise problems, but also causes mechanical fatigue, shortened bearing life, increased friction between the rotor and stator, and even structural damage to the equipment. In some cases, severe vibrations can also reduce the efficiency of the motor, increase energy consumption, and affect the stable operation of the motor and other connected equipment.
3.1 Modern vibration diagnostic technology.
Spectrum analysis: Specific failure modes are identified by analyzing the frequency component of the motor vibration signal.
Finite Element Analysis (FEA): Uses computers to simulate the physical behavior of electric motors,** and analyze vibration problems to help improve designs.
Vibration monitoring system: real-time monitoring of the vibration status of the motor, timely detection of abnormalities, and prevention of failures.
4.1 Vibration damping techniques and materials.
Use of high-performance damping materials: Introduce new high-damping materials into the motor design to effectively absorb vibration energy.
Intelligent control strategy: adjust the working state of the motor through the intelligent control system to avoid entering the resonance area.
4.2. Optimization of maintenance strategies.
Periodic inspection and preventive maintenance: Establish a regular inspection and maintenance plan for the motor to identify and solve vibration problems in a timely manner.
Failure technology: Utilizing data analysis and machine learning techniques to address potential failures and maintenance needs of the motor.
Conclusion. Motor vibration is a complex phenomenon, and its analysis and treatment need to comprehensively consider the design, operation and maintenance of the motor. In this paper, a comprehensive set of motor vibration optimization schemes is provided by introducing advanced analysis techniques and processing methods. It has been proven in practice that these methods can effectively reduce motor failures and improve the operating efficiency and service life of motors. In the future, with the development of new materials and technologies, the analysis and treatment of motor vibration will be more efficient and intelligent.