复合材料成型过程多参数协同在线监测系统研究

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (2): 57-62.

复合材料成型过程多参数协同在线监测系统研究

康旭辉¹, 湛利华^1*, 谭炜², 吴欣桐¹

1.中南大学机电工程学院,长沙410083;
2.剑桥大学工程系,剑桥 CB2 1PZ

收稿日期:2018-05-10 出版日期:2019-02-25 发布日期:2019-02-28
通讯作者: 湛利华(1976-),女,教授,博士生导师,主要从事先进材料制备技术与装备方面的研究,yjs-cast@csu.edu.cn。
作者简介:康旭辉(1994-),男,硕士,主要从事树脂基复合材料方面的研究。
基金资助:
国家自然科学基金资助项目(51675538);国家重点基础研究发展计划(973)(2014CB046500);中南大学研究生科研创新项目(2018zzts456)

MULTI-PARAMETER COLLABORATIVE ON-LINE MONITORING SYSTEM STUDY FOR CURING PROCESS OF COMPOSITE MATERIALS

KANG Xu-hui¹, ZHAN Li-hua^1*, TAN Wei², WU Xin-tong¹

1.School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China;
2.Engineering Department, University of Cambridge, Cambridge CB2 1PZ

Received:2018-05-10 Online:2019-02-25 Published:2019-02-28

摘要/Abstract

摘要： 复合材料制件的成型质量同时受其工艺环境和构件内部理化反应的影响,现有固化过程的监测多为离线、离散监测方式,且监测后期数据处理工作量大,固化过程中不能直观地监测到制件内部状态的变化从而难以实现对其成型质量的在线反馈控制,监测的物理量较少,无法综合研究物理量之间的相互影响。为了实现对先进复合材料制件热压固化全过程多参数协同在线监测,提出了一种基于经典层合板理论、“热电偶+光纤布拉格光栅”和“毛细管压力传感器”组合式测量的方法,利用LabVIEW图形编程语言、数据通信和数据库技术开发了一套多参数在线监测上位机软硬件系统,实现了温度、压力、应变和应力之间数据传输的协同与同步在线监测。将其应用到某大型飞机机翼翼盒壁板缩比件固化实验,结果表明该监测系统可实现对复合材料固化全过程多参数的实时监测,系统运行稳定、可靠,对于察明构件固化缺陷的产生机理并实现固化成型质量的在线反馈控制具有重要的现实意义。

关键词: 复合材料, 热压工艺, 多参数协同, 在线监测, 数据通信

Abstract: The forming quality of composite materials is influenced cooperatively by the environment of autoclave curing process and physical and chemical reaction inside of component. The majority of the existing monitoring methods used to monitor the curing process are offline and discrete. Those methods bring about a heavy workload of subsequent data processing and the difficulty in detecting the interior change in the parts directly, making it hard to realize the online feedback control of the molding quality. Moreover, the amount of physical quantities detected is so small that the interaction among physical quantities cannot be comprehensively studied. In order to achieve the multi-parameter collaborative on-line monitoring of advanced composite materials forming process, in this paper, a kind of combined measurement method based on the classical laminated plate theory, "thermocouple+optical fiber Bragg grating" and "capillary pressure sensor" is introduced and a set of online monitoring PC software system using LabVIEW graphical programming language, data communication and database technology is developed, which have realized the synchronous online data communication and the synergy among temperature, pressure, strain and stress. The curing experiment of shrinkage part of a large aircraft wing box wall have corroborated the feasibility of the real-time monitoring for multi-parameters of the whole process of composite materials forming by the monitoring system and the stability and reliability of the system, which are of practical significance for ascertaining the mechanism of curing defects generated and realizing the online feedback control.

Key words: composite materials, hot pressing process, multi-parameter collaborative, on-line monitoring, data communication

中图分类号:

TB332

康旭辉, 湛利华, 谭炜, 吴欣桐. 复合材料成型过程多参数协同在线监测系统研究[J]. 玻璃钢/复合材料, 2019, 0(2): 57-62.

KANG Xu-hui, ZHAN Li-hua, TAN Wei, WU Xin-tong. MULTI-PARAMETER COLLABORATIVE ON-LINE MONITORING SYSTEM STUDY FOR CURING PROCESS OF COMPOSITE MATERIALS[J]. Fiber Reinforced Plastics/Composites, 2019, 0(2): 57-62.

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