基于多层次迭代修正的纤维增强复合薄壁截顶圆锥壳振动响应分析
Vibration response analysis of fiber reinforced composite thin-walled truncated conical shell based on multilevel iterative correction
许卓 1许沛尧 2初晨 2姚楠 2李晖 3顾大卫 4李鹤 3闻邦椿3
作者信息
- 1. 东北电力大学 机械工程学院,吉林 132011;东北大学 航空动力装备振动及控制教育部重点实验室,沈阳 110819
- 2. 东北电力大学 机械工程学院,吉林 132011
- 3. 东北大学 机械工程与自动化学院,沈阳 110819;东北大学 航空动力装备振动及控制教育部重点实验室,沈阳 110819
- 4. 东北大学 航空动力装备振动及控制教育部重点实验室,沈阳 110819;浙江工业大学 机械工程学院,杭州 310014
- 折叠
摘要
提出了一种纤维增强复合薄壁截锥壳的振动响应分析模型.针对纤维增强复合薄壁截锥壳的结构特点,考虑基础激励载荷方向与母线的夹角、纤维铺层方向与x轴的夹角,利用板壳振动理论、复弹性模量等方法对所研究结构进行了理论建模.利用双向梁函数法表示振型函数,并通过能量法和模态叠加法对其固有特性和振动响应进行求解.为了验证模型的正确性,基于自行搭建的振动测试平台,以TC300/环氧树脂基纤维增强复合薄壁截锥壳为对象,进行了振动特性测试.为减小因样件加工时产生的材料参数误差影响,开发了二分粒子群迭代法对材料参数进行修正.研究发现,测试结果与理论计算获得的共振响应误差最大不超过3.0％,验证了所提出的理论模型与计算方法的正确性和有效性.
Abstract
A vibration response analysis model was established for a fiber-reinforced composite thin-walled trun-cated conical shell.Based on the structural characteristics of the fiber-reinforced composite thin-walled truncated conical shell,the theoretical modeling of the structure was carried out using plate shell vibration theory and com-plex elastic modulus methods,considering the angle between the basic excitation load direction and the generatrix,the angle between the fiber laying direction and the x-axis.The vibration mode function was expressed using the bi-directional beam function method,and the natural characteristics and vibration response were solved using the energy method and modal superposition method.In order to verify the correctness of the model,vibration characte-ristic tests were conducted on a TC300/epoxy resin-based fiber-reinforced composite thin-walled truncated cone shell using a self-built vibration test platform.To reduce the influence of material parameter errors caused by sample processing,a dichotomous particle swarm algorithm iteration method was developed to correct the mate-rial parameters.The results show that the maximum error between the test results and the theoretically calculated resonance response is within 3.0％,which verifies the correctness and effectiveness of the proposed theoretical model and calculation method.
关键词
纤维增强/圆锥壳/基础激励/多层次迭代修正/振动响应Key words
fiber reinforced/conical shell/base excitation/multilevel iterative correction/vibration response引用本文复制引用
基金项目
东北电力大学博士科研启动基金(BSJXM-2020221)
东北大学航空动力装备振动及控制教育部重点实验室研究基金(VCAME202204)
出版年
2024
NETL
NSTL
万方数据