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发动机转子叶片的动力学分析
  • ISSN号：1006-1576
  • 期刊名称：兵工自动化
  • 时间：2013.9.15
  • 页码：50-53+79
  • 分类：TP271.2[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构：[1]湖南大学机械与运载工程学院工程力学系,长沙410082
  • 相关基金：国家自然科学基金资助项目（11172093,11032004）
  • 相关项目：大跨度斜拉桥的非线性建模理论及其动力学研究
作者： 唐驾时|彭海|
关键词： 转子叶片, 模态分析, 振动, 有限元, rotor blade, modal analysis, vibration, finite element
中文摘要：

为更好地了解和掌握发动机叶片的固有振动特性，对某发动机转子叶片进行模态分析和谐响应分析。利用大型有限元计算软件ANSYS，采用三维实体单元建立有限元模型，得到了不同材质叶片的前8阶固有频率和振型，并将分析结果与实验结果比较。结果表明：钛合金更适合作为叶片的铸造材料；在简谐载荷作用下，叶顶的响应要远大于叶根部的响应值；采用20节点的三维实体单元计算精度高；定轴转动叶片的离心力载荷主要影响叶片的扭转振动频率。

英文摘要：

In order to understanding and predominating the inherent vibration characteristics of engine blades, modal analysis and harmonic response analysis of a blade are calculated based on ANSYS program. Established finite element model by three dimensional solid element, got the first eight natural frequency and vibration mode. Compared with the experiment result, titanium alloy material can be used cast blade better. With the harmonic load, the response on blade tip is more greater than the response on blade root. The calculated results by ANSYS with twenty nodes element agree with the experimental results definitely. The centrifugal force of rotational blade changes the torsional vibration frequency principally.

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期刊信息
  • 《兵工自动化》
  • 中国科技核心期刊
  • 主管单位:中国兵器装备集团公司
  • 主办单位:中国兵器工业第58研究所
  • 主编：黄荔
  • 地址：四川省绵阳市仙人路二段七号
  • 邮编：621000
  • 邮箱：bgzdh@58suo.com
  • 电话：0816-2282073 2278175
  • 国际标准刊号：ISSN：1006-1576
  • 国内统一刊号：ISSN：51-1419/TP
  • 邮发代号:62-301
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:9121