基于声学负载的直线压缩机参数反求

doi:10.11985/2015.12.006

电气工程学报 ›› 2015, Vol. 10 ›› Issue (12): 32-37.doi: 10.11985/2015.12.006

基于声学负载的直线压缩机参数反求

王龙一^1,²,甘智华^1,²,金泽远^1,²,郭永祥^1,²

^1. 浙江大学制冷与低温研究所杭州 310027
^2. 浙江省制冷与低温技术重点实验室杭州 310027

收稿日期:2015-09-07 出版日期:2015-12-25 发布日期:2020-04-09
作者简介:王龙一男 1988年生,博士研究生,主要研究方向为脉管制冷机和直线压缩机。|甘智华男 1973年生,教授,博士生导师,主要研究方向为小型低温制冷机、液氦温区制冷技术、低温脉动热管和低温绝热技术。
基金资助:
国家自然科学基金资助项目(51376157);高等学校博士学科点专项科研基金(20130101110098)

Reverse Measurement of Linear Compressor Parameters Based on Acoustic Load

Longyi Wang^1,²,Zhihua Gan^1,²,Zeyuan Jin^1,²,Yongxiang Guo^1,²

^1. Institute of Cryogenics and Refrigeration Zhejiang University Hangzhou 310027 China
^2. Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province Hangzhou 310027 China

Received:2015-09-07 Online:2015-12-25 Published:2020-04-09

摘要/Abstract

摘要：

直线压缩机由于结合了直线电机驱动、柔性板弹簧支撑以及无油间隙密封等技术,具有寿命长、振动低、可靠性高等优势,现已发展成为斯特林型低温制冷机高效可靠运行的关键。直线压缩机由电、机械和声学三部分组成,其中低温制冷机提供等效声学阻抗。声阻抗直接影响着直线压缩机的工作特性。本文从直线压缩机的声阻抗特性出发,分析了其对直线压缩机输出特性的影响规律。进一步提出了基于声学负载的直线压缩机机械弹簧刚度、动子质量、电机比推力以及机械阻尼系数的反求方法,以期为直线压缩机阻抗匹配及其性能检测提供参考。

关键词: 直线压缩机, 低温制冷机, 声阻抗, 参数反求

Abstract:

Combining the technologies of linear motor,flexure bearing and oil-free clearance seal, a linear compressor has advantages such as long life, low vibration and high reliability, which make it a key to insure the high performance of a Stirling-type cryocooler. A linear compressor can be divided into three parts, those are electric, mechanical and acoustic parts, in which acoustic load is provided by a cryocooler. The acoustic impedance significantly effect the performance of a linear compressor. In this paper, the acoustic impedance characteristics are analyzed, and from this point of view, an reverse measurement method of the spring stiffness, the moving mass, the specific motor thrust and the damping coefficient is proposed, it is expected to provide reference for impedance match and performance test of a linear compressor.

Key words: Linear compressor, cryocooler, acoustic impedance, reverse measurement

中图分类号:

TB652

王龙一,甘智华,金泽远,郭永祥. 基于声学负载的直线压缩机参数反求[J]. 电气工程学报, 2015, 10(12): 32-37.

Longyi Wang,Zhihua Gan,Zeyuan Jin,Yongxiang Guo. Reverse Measurement of Linear Compressor Parameters Based on Acoustic Load[J]. Journal of Electrical Engineering, 2015, 10(12): 32-37.

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基于声学负载的直线压缩机参数反求

Reverse Measurement of Linear Compressor Parameters Based on Acoustic Load

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