模糊理论具有处理不确定性信息的能力,在表征复杂的结构健康监测系统内、外部参数的类属、性态等的不精确、不明晰性方面具有独特的优势.为了监测复合材料层合结构的脱层损伤,引入以微观力学理论为基础的连续性损伤力学模型,提出用于模糊推理损伤监测系统的新的损伤表征参数,该损伤参数从脱层损伤的几何本质上描述脱层损伤的特性,比常规的以各方向弹性模量减少为特征的损伤表征更具有准确性和直观性.建立基于新的损伤参数的模糊推理损伤监测系统,并将其应用于复合材料柔性梁的脱层损伤监测中,仿真算例表明该系统可以快速、准确地识别出结构损伤的位置和程度.
参考文献
| [1] | Zheng Shijie;Wang Hongtao;Liu Lifeng .The novel method of structural health monitoring using FEM and neurat networks[J].Materials Science Forum,2005,475/479:2099-2102. |
| [2] | 宋振;郑世杰.复合材料板壳任意位置处载荷识别[J].航空动力学报 |
| [3] | Yan G;Zhou L .Impact load identification of composite structure using genetic algorithms[J].Journal of Sound and Vibration,2009(3/5):869-884. |
| [4] | Sawyer JP.;Rao SS. .Structural damage detection and identification using fuzzy logic[J].AIAA journal,2000(12):2328-2335. |
| [5] | Ganguli R .A fuzzy logic system for ground based structural health monitoring of a helicopter rotor using modal data[J].Journal of Intelligent Material Systems and Structures,2001,12(06):397-408. |
| [6] | Samuel da Silva;Milton Dias Junior;Vicente Lopes Junior;Michael J. Brennan .Structural damage detection by fuzzy clustering[J].Mechanical Systems & Signal Processing,2008(7):1636-1649. |
| [7] | PRASHANT M. PAWAR;RANJAN GANGULI .Matrix Crack Detection in Thin-walled Composite Beam using Genetic Fuzzy System[J].Journal of Intelligent Material Systems and Structures,2005(5):395-409. |
| [8] | Chandrashekhar, M.;Ganguli, R. .Damage assessment of structures with uncertainty by using mode-shape curvatures and fuzzy logic[J].Journal of Sound and Vibration,2009(3/5):939-957. |
| [9] | 李正强 .基于遗传算法和模糊神经网络的结构健康监测研究[D].南京航空航天大学,2007. |
| [10] | Talreja R .Stiffness properties of composite laminates with matrix cracking and interior delamination[J].Engineering Fracture Mechanics,1986,25(5/6):751-762. |
| [11] | 沈观林;胡更开.复合材料力学[M].北京:清华大学出版社,2006:31-34. |
| [12] | 王士同.模糊系统、模糊神经网络及应用程序设计[M].上海:上海科学技术文献出版社,1998:10-19. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%