| 基圆渐开线涡旋盘齿根综合应力集中系数的确定 |
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| 引用本文： | 强建国,马晓,刘振全. 基圆渐开线涡旋盘齿根综合应力集中系数的确定[J]. 兰州理工大学学报, 2007, 33(3): 38-41 |
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| 作者姓名： | 强建国 马晓 刘振全 |
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| 作者单位： | 兰州理工大学,机电工程学院,甘肃,兰州,730050;兰州理工大学,石油化工学院,甘肃,兰州,730050 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 分析涡旋齿根应力集中的主要影响因素,建立涡旋齿根应力集中的等效几何模型,在不考虑涡旋齿面质量影响的前提下,以齿根应力疲劳缺口系数和形状变化系数综合形成涡旋齿根综合应力集中系数,并基于机械设计手册数据拟合得到涡旋齿根综合应力影响系数的简化计算公式,实例说明计算结果与对应几何模型从《机械设计手册》中查取的结果吻合较好.
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| 关 键 词： | 涡旋机械 涡旋齿根 综合应力集中系数 |
| 文章编号： | 1673-5196（2007）03-0038-04 |
| 修稿时间： | 2006-09-12 |
Determination of concentration coefficient of synthetic stress at roots of scroll wrap in form of circle involute |
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| QIANG Jian-guo,MA Xiao,LIU Zhen-quan. Determination of concentration coefficient of synthetic stress at roots of scroll wrap in form of circle involute[J]. Journal of Lanzhou University of Technology, 2007, 33(3): 38-41 |
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| Authors: | QIANG Jian-guo MA Xiao LIU Zhen-quan |
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| Affiliation: | 1. College of Mechano-Electronic Engineering, Lanzhou Univ. of Tech. , Lanzhou 730050, China; 2. College of Petrochemical Technology, Lanzhou Univ. of Tech. , Lanzhou 730050, China |
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| Abstract: | Main influencing factor on the stress concentration at the roots of scroll wrap was analyzed and an equivalent geometric model of this stress concentration was set up.On the premise of ignoring the surface quality of the scroll wrap,a concentration coefficient of synthetic stress at the root of scroll wrap was synthetically constituted according to fatigue notch coefficient and shape variation coefficient of the wrap roots and a simplified evaluation formula of influencing coefficient of the synthetic stress was also obtained by means of data-fitting presented in "Machine Design Manual".It was shown by an actual illustrative computation that its result was well consistent with that looked up in machine design manual. |
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| Keywords: | scroll machine scroll wrap root concentration coefficient of synthetic stress |
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