A Design Method for Single-Layer Vibration Isolation System Used in Power Mechanical Equipment

Abstract

The present invention discloses a single-layer vibration isolation system design method for power equipment. The method comprises the following steps: testing a vibration property of a vibration source of power equipment so as to acquire an excitation frequency and a vibration isolation performance parameter of the vibration source; acquiring an inertial parameter of the power equipment; determining the number of vibration insulators and a constraint condition in a single-layer vibration isolation system; establishing an optimization objective function of a vibration isolation rate and a comprehensive decoupling rate; and establishing a multi-body dynamics model and optimizing calculation of a single-layer vibration isolation system design by using a particle swarm optimization algorithm. According to the single-layer vibration isolation system design method for power equipment provided by the present invention, the two design objectives, the vibration isolation rate and the decoupling rate, are both considered, so that with the vibration isolation rate being ensured, a coupling effect of a rigid body mode of each order is effectively lowered. The vibration isolation performance of a vibration isolation system can be truly improved. No repeated commissioning is required in the design process; an acquired design parameter is of an optimal value; an effect evaluation parameter will definitely meet the requirement of specifications; and a design result is accurate and highly efficient.

Description

technical field [0001] The invention relates to the design technology of a vibration isolation system for power machinery equipment, in particular to a design method for a single-layer vibration isolation system for power machinery equipment. Background technique [0002] Vibration isolation is a vibration control technology with strong applicability and theory. With the continuous development of industrialized society, the contradiction between the application of power mechanical equipment and the vibration hazard of mechanical equipment has become increasingly prominent, which has also promoted a large number of scholars to work on isolation Theoretical and experimental research on vibration technology. Installing a vibration isolator on the base of power machinery equipment can effectively reduce the transmission of its vibration to the installation foundation, and the stiffness matching design and installation layout design of the vibration isolator are the key technolog...

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Problems solved by technology

However, the vibration isolation system design method in the prior art has the following disadvantages: the current design concept of the vibration isolation system design method lacks clear directionality, whether it is simulation analysis or installed test, it needs to be repeatedly debugged, although some design schemes can It meets the requirements of the indicators, but in many cases, the design is not the best design solution, and there is still room for improvement, which highlights the low design efficiency and requires the designer to have rich engineering experience

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