自由活塞斯特林机动子运动阻尼特性研究

doi:10.19912/j.0254-0096.tynxb.2021-0008

太阳能学报 ›› 2022, Vol. 43 ›› Issue (8): 230-235.DOI: 10.19912/j.0254-0096.tynxb.2021-0008

自由活塞斯特林机动子运动阻尼特性研究

罗靖^1,2, 陈燕燕¹, 胡剑英¹, 罗二仓^1,2

1.中国科学院理化技术研究所低温工程学重点实验室,北京 100190;
2.中国科学院大学,北京 100049

收稿日期:2021-01-04 出版日期:2022-08-28 发布日期:2023-02-28
通讯作者: 陈燕燕（1982—）,女,博士、高级工程师,主要从事交变流动中的非线性流动与传热特性方面的研究。yychen@mail.ipc.ac.cn
基金资助:
中国科学院先导A课题（XDA21080300）

RESEARCH ON DAMPING CHARACTERISTICS OF MOVERS IN FREE PISTON STIRLING ENGINES

Luo Jing^1,2, Chen Yanyan¹, Hu Jianying¹, Luo Ercang^1,2

1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2021-01-04 Online:2022-08-28 Published:2023-02-28

摘要/Abstract

摘要： 为准确描述自由活塞斯特林机动子的动力学特性,将黏性阻尼与库伦阻尼的分离计算法引入动子的运动阻尼分析中。通过理论分析和实验验证,并与等效黏性阻尼计算法进行对比,证明了分离计算法的正确性和实用性。研究结果表明：动子在往复运动中的接触摩擦与常规接触摩擦不同,其阻尼力既不只是一个定常摩擦力,也不只是速度的线性函数,而是由于往复运动,动子的局部接触情况随位移发生变化,表现为与位置相关的摩擦力。因此,动子往复运动中的阻尼特性应采用一个黏性阻尼系数与一个定常摩擦力共同描述。

关键词: 自由活塞, 斯特林机, 动力学特性, 黏性阻尼, 库伦阻尼, 分离计算法

Abstract: A separate calculation method of viscous damping and Coulomb damping was introduced into the kinematic damping analysis to accurately describe the dynamic characteristics of movers in free piston Stirling engines. Based on theoretical analysis and experimental verification, and compared with the equivalent viscous damping calculation method, the correctness and practicability of the separate calculation method were verified. The results show that the contact friction of movers in reciprocating motion is different from the conventional contact friction. Its damping force is neither only a constant friction nor only a linear function of the velocity, but a position dependent friction as the local contact of the mover changes with the displacement due to reciprocating motion. Therefore, the damping characteristics of the reciprocating movers should be described by the combination of a viscous damping coefficient and a constant friction.

Key words: free piston, Stirling engines, dynamic characteristics, viscous damping, Coulomb damping, separate calculation method

中图分类号:

TK124

罗靖, 陈燕燕, 胡剑英, 罗二仓. 自由活塞斯特林机动子运动阻尼特性研究[J]. 太阳能学报, 2022, 43(8): 230-235.

Luo Jing, Chen Yanyan, Hu Jianying, Luo Ercang. RESEARCH ON DAMPING CHARACTERISTICS OF MOVERS IN FREE PISTON STIRLING ENGINES[J]. Acta Energiae Solaris Sinica, 2022, 43(8): 230-235.

参考文献

[1] WALKER G.Stirling engines[M]. Oxford: Clarendon Press, 1980.
[2] 唐硕捷, 黄护林, 张银. 自由活塞式斯特林发动机的性能优化[J]. 太阳能学报, 2017, 38(4): 1138-1143.
TANG S J,HUANG H L,ZHANG Y.Performance optimization of free piston Stirling engine[J]. Acta energiae solaris sinica, 2017, 38(4): 1138-1143.
[3] 贾红书. 100 W自由活塞斯特林发电机整机研制及性能分析[D]. 北京: 中国科学院研究生院, 2011.
JIA H S.Development of 100 W free piston Stirling generator and the performance analysis[D]. Beijing: Graduate School of Chinese Academy of Sciences, 2011.
[4] WILSON S.Overview of Stirling technology research at NASA Glenn Research Center[C]//13th International Energy Conversion Engineering Conference, Orlando, Florida, 2015: 3905.
[5] SUN Y L, LUO K Q, HU J Y, et al.A Combined cooling and power cogeneration system by coupling duplex free-piston stirling cycles and a linear alternator[J]. International journal of refrigeration, 2020, 118: 146-149.
[6] SCHIEL W, KECK T.Parabolic dish concentrating solar power (CSP) systems[M]. Cambridge (UK): Woodhead Publishing, 2012.
[7] 李薇, 牟健, 洪国同. 自由活塞斯特林发动机配气活塞阻尼系数的试验研究[J]. 低温工程, 2015(5): 39-44.
LI W, MOU J, HONG G T.Experiment on friction coefficient of displacer of free-piston Stirling engine[J]. Cryogenics, 2015(5): 39-44.
[8] 李小伟. 基于自由活塞斯特林技术的低温制冷机研究[D]. 北京: 中国科学院大学, 2017.
LI X W.Study on Cryocooler based on free piston Stirling technology[D]. Beijing: University of Chinese Academy of Sciences, 2017.
[9] RAYLEIGH L.The theory of sound[M]. Vol I. New York: by Dover, 1945.
[10] LORENZ H.Technische mechanik starrer gebilde[M]. Berlin: Verlagvon Julius Springer, 1924.
[11] JACOBSEN L S, AYRE R S.Engineering vibrations[M]. New York: McGraw-Hill, 1958.
[12] WATARI A.Kikai-rikigaku[M]. Tokyo: Kyouritsu, 1969.
[13] FEENY B F, LIANG J W.A decrement method for the simultaneous estimation of coulomb and viscous friction[J]. Journal of sound and vibration, 1996, 195(1): 149-154.
[14] LIANG J W, FEENY B F.Identifying coulomb and viscous friction from free-vibration decrements[J]. Nonlinear dynamics, 1998, 16: 337-347.
[15] LIANG J W.Identifying Coulomb and viscous damping from free-vibration acceleration decrements[J]. Journal of sound & vibration, 2005, 282(3-5): 1208-1220.

自由活塞斯特林机动子运动阻尼特性研究

RESEARCH ON DAMPING CHARACTERISTICS OF MOVERS IN FREE PISTON STIRLING ENGINES

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics