Abstract
When the motor works normally, its base will vibrate. The structure will generate the resonance and result in damage of the mechanical equipment when the vibration frequency reaches the natural frequency. The article which is based on the modal analysis of the motor base compares the natural frequencies in different boundary constraints in order to select appropriate way to install the motor base, and optimizes the motor base by contrasting different effects on the natural frequencies of the different thickness of the ribbed plates for selecting reasonable structure to prevent resonance.
Highlights
In recent years, all kinds of mechanical products have been developing in the direction of high precision and high quality
The vibration problem is closely related to the dynamic characteristics of mechanical structure which can utilize the modal analysis to research the dynamic characteristics
The modal analysis is helpful for the design of the motor base
Summary
All kinds of mechanical products have been developing in the direction of high precision and high quality. Modal is the inherent vibration characteristic of mechanical structure, which has specific natural frequency, damping ratio and mode shape. Foreign research on modal analysis is earlier and more mature. The modal analysis is often used as a condition monitoring tool for mechanical structures such as bridges [4]. Evaluating bridge dynamic characteristics from experimental data is a common method by the modal analysis and various techniques [5]. The article compares the natural frequencies of the motor base under different boundary conditions and the influence on the natural frequencies of different thickness of the ribbed plates by using the modal analysis to study the vibration characteristics of the motor base, design the structure reasonably and prevent resonance
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