Modeling and optimization method for piston compressor vibration isolation system

A technology of vibration isolation system and optimization method, applied in the field of compressors, can solve problems such as poor vibration reduction effect, inability to effectively support the system, easy to jump, etc., and achieve the effect of improving precision and accuracy

Active Publication Date: 2016-03-23
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Spring sets with the same rigidity cannot well reduce the shock and vibration between the movement and the lower case
[0004] Moreover, if the elastic coefficient of the spring is too small or too large, it will have a great impact on the vibration isolation system of the compressor.
Too small will cause the spring to be too soft, so that the spring is easily compressed, not only cannot effectively support the system, but also cannot effectively reduce system vibration (the system will easily compress the spring and touch the bottom of the shell under the action of excitation)
Too much will cause the spring to be too hard, making it difficult for the spring to be compressed, not only easy to jump, but also the vibration damping effect is very poor

Method used

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  • Modeling and optimization method for piston compressor vibration isolation system
  • Modeling and optimization method for piston compressor vibration isolation system
  • Modeling and optimization method for piston compressor vibration isolation system

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Embodiment Construction

[0026] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments. This embodiment is only an explanation of the present invention, and those skilled in the art can make modifications without creative contribution to this embodiment as required after reading this specification, but they are all protected by the patent law within the scope of the claims of the present invention.

[0027] The modeling and optimization method of the piston compressor vibration isolation system of the present invention comprises the following steps:

[0028] 1. The rigid body dynamics model of the piston compressor is simplified, and the rigid body dynamics model of the piston compres...

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Abstract

The present invention provides a modeling and optimization method for a piston compressor vibration isolation system. The method comprises the following steps: optimizing and obtaining a three-freedom-degree vibration isolation model; establishing a vibration equation; calculating a vibration force transfer rate; and optimizing a parameter of the vibration isolation system, so that vibration and noise reduction can be carried out on the piston compressor. The present invention establishes a mathematical model on a proposed kinetic model, solves an optimum value by using an optimization method-complex method, and acquires an ideal needed stiffness of a spring group, thereby achieving the aim of reducing noise and vibration of the compressor.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to the damping technology of piston compressors. Background technique [0002] The compressor is the power source and heart of the household refrigerator, and its vibration and noise are the main sources of the vibration and noise of the household refrigerator. The special working characteristics of the compressor make the compressor inevitably generate vibration and noise during the working process. The vibration caused by gas power, mechanical motion and electromagnetic is the main source of compressor vibration and noise. The reciprocating inertial force and rotational inertial force are formed when the crankshaft-connecting rod-piston mechanism moves, and they are important reasons for the mechanical vibration and noise of the piston compressor. When the natural frequency of the vibrating component is close to the integer multiple of the excitation frequency of the inertial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 张依东童水光从飞云徐剑沈强贾亚萍程浙武
Owner ZHEJIANG UNIV
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