干纱缠绕复合材料压力容器的结构设计与强度分析
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摘要
相对于湿法缠绕复合材料压力容器传统的壳单元建模与分析方法,提出了一种基于干纱束模式的纤维缠绕压力容器的细观建模和强度分析方法。通过Python和MATLAB完成干纱缠绕层的参数化建模,利用有限元软件ABAQUS研究各工况下压力容器的力学响应。使用机器人缠绕工作站完成压力容器的干纱缠绕实验,验证了设计参数和线型的可行性。结果表明:基于干纱束的参数化建模方法能准确地反映纤维缠绕的真实路径;同一角度纤维层连续的铺层方案更适用于干纱缠绕结构;工作压强(4 MPa)下,气瓶各区域的应力值均满足设计要求,筒身段环向层纤维的最大主应力远大于螺旋层;当内压达到16 MPa时,气瓶环向纤维断裂引发气瓶失效。
Compared with the traditional shell element modeling and analysis methods for resin based fiber winding composite pressure vessels,this paper proposes a modeling and finite element analysis method for dry filament wound pressure vessels based on the fiber bundle model. The parametric modeling of the dry fiber winding layer was accomplished through Python programming and MATLAB. The finite element software ABAQUS was used to study the mechanical response of the dry fiber wound pressure vessel under working pressure. Using a robot winding station to complete the dry yarn winding experiment of the pressure vessel,the feasibility of design parameters and line type was verified. The calculation results show that the parametric modeling method based on dry yarn bundles can accurately reflect the true path of filament winding. The continuous layering scheme at the same angle makes the mechanical properties of the fiber more fully utilized. Under the working pressure( i. e.,4 MPa),the stress values in each zone of the cylinder are all designed to meet the design requirements,the maximum principal stress of the fiber in the loop layer of the cylinder body is much greater than that of the spiral layer. When the internal pressure reaches 16 MPa,fiber breakage in the circumferential direction causes the failure of pressure vessel.
Compared with the traditional shell element modeling and analysis methods for resin based fiber winding composite pressure vessels,this paper proposes a modeling and finite element analysis method for dry filament wound pressure vessels based on the fiber bundle model. The parametric modeling of the dry fiber winding layer was accomplished through Python programming and MATLAB. The finite element software ABAQUS was used to study the mechanical response of the dry fiber wound pressure vessel under working pressure. Using a robot winding station to complete the dry yarn winding experiment of the pressure vessel,the feasibility of design parameters and line type was verified. The calculation results show that the parametric modeling method based on dry yarn bundles can accurately reflect the true path of filament winding. The continuous layering scheme at the same angle makes the mechanical properties of the fiber more fully utilized. Under the working pressure( i. e.,4 MPa),the stress values in each zone of the cylinder are all designed to meet the design requirements,the maximum principal stress of the fiber in the loop layer of the cylinder body is much greater than that of the spiral layer. When the internal pressure reaches 16 MPa,fiber breakage in the circumferential direction causes the failure of pressure vessel.
引文
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[2]杨金纯.干纱缠绕圆柱壳体预成型技术研究[D].天津:天津工业大学,2006.
[3]杜善义.先进复合材料与航空航天[J].复合材料学报,2007,24(1):1-12.
[4]于斌,刘志栋,赵志伟,等.国内外复合材料气瓶发展状况与标准分析(二)[J].压力容器,2011,12(11):34-40.
[5]张宇.全自动气瓶缠绕成型生产线设计[D].哈尔滨:哈尔滨理工大学,2017.
[6]Koppert J J M,De Boer H,Weustink A P D,et al. Virtual testing of dry filament wound thick walled pressure vessels[C]//16th International Conference on Composite Materials. 2007.
[7] Multhoff J B. Towards fiber bundle models for composite pressure vessels[M]//Design and Analysis of Reinforced Fiber Composites.Springer,Cham,2016:49-65.
[8]Rijswijk K V,Koussios S,Bergsma O K. Filament wound container made of natural fibers and rubber:conceptual design[J]. Proceedings of the Institution of Mechanical Engineers Part L-Journal of MaterialsDesign and Applications,2003,217(4):277-286.
[9]沈创石,韩小平,何欣辉.计及纤维交叉起伏影响的缠绕复合材料刚度分析[J].复合材料学报,2016,33(1):174-182.
[10]王燕.干纤维增强橡胶膨胀节缠绕线型设计及轨迹研究[D].哈尔滨:哈尔滨理工大学,2017.
[11]穆建桥.复合材料压力容器的非测地线缠绕成型及强度分析研究[D].武汉:武汉理工大学,2017.
[12]Zu L,Koussios S,Beukers A. Design of filament-wound isotensoidpressure vessels with unequal polar openings[J]. Composite Structures,2010,92(9):2307-2313.
[13]祖磊,汪洋,王继辉,等.钛内衬复合材料环形气瓶结构设计与优化[J].材料工程,2016,44(2):56-62.
[14]夏爱生,刘俊峰.数学建模与MATLAB应用[M].北京:北京理工大学出版社,2016.
[15]许家忠,刘美军,杨海.一种复合材料LPG气瓶成型工艺及装置:CN105729842A[P]. 2016-07-06.
[16]张玉龙.塑料品种与性能手册[M].北京:化学工业出版社,2012.
[17]Tabatabaei S A,Lomov S V,Verpoest I. Assessment of embedded element technique in meso-FE modelling of fibre reinforced composites[J]. Composite Structures,2014,107:436-446.
[18] Multhoff J B. Integrated structural analysis of composite pressure vessels:a design tool[C]//ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers,2016:4-7.
[19] Gas cylinders-Refillable composite gas cylinders and tubes:ISO11119-3[S]. 2013.
[20]许家忠.纤维缠绕复合材料成型原理及工艺[M].北京:科学出版社,2013.