脉动血流发生器非圆齿轮副模态分析
Modal Analysis of Non-Circular Gear Pairs of Pulsating Blood Flow
陶德华 1张春晓 2李凝 1王笑 1郑丽娟1
作者信息
- 1. 浙江师范大学 行知学院,浙江 金华 321000
- 2. 嘉兴盈泰五金电子有限公司,浙江 嘉兴 314001
- 折叠
摘要
为进一步验证新型脉动血流发生器驱动机构的性能,对脉动血流发生器非圆齿轮—曲柄滑块式驱动机构中的非圆齿轮副进行模态分析.利用编制的可视化设计平台和Solid Works的三维建模软件获得非圆齿轮副三维实体模型,在研究齿轮模态振动理论的基础上,利用COMSOL软件得到主、从动非圆齿轮前6 阶固有频率及其模态振型.结果表明:脉动血流发生器的工作频率远低于所设计非圆齿轮副的固有频率;非圆齿轮副前6 阶固有频率随阶数的增加而增大,呈正相关性,为后续脉动血流发生器样机试制及优化提供理论依据.
Abstract
In order to further prove the structural performance of the novel pulsating blood flow generators driven by non-circular gears,modal analysis of the non-circular gears of the pulsating blood flow generators de-signed by the research group was carried out.The 3D solid model of non circular gear pairs were obtained by u-sing the developed visual design platform and Solid Works 3D modeling software;on the basis of studying the theory of gear modal vibration,first 6 natural frequencies and modal shapes of the driving and driven non circular gears was obtained by COMSOL.The results showed that operating frequency of pulsating blood flow generator was much lower than the natural frequency of non circular gear pairs,therefore,the noval pulsatile blood flow generator driving mechanism designed by the research group was not experiencing resonance phenomenon during normal operation;natural frequencies of non circular gears were increased positively with the increase of order.A theoretical basis for the subsequent trial production and optimization of the pulsatile blood flow generator proto-type was provided by the above conclusion.
关键词
脉动血流发生器/非圆齿轮/模态分析/固有频率Key words
pulsating blood flow generator/non-circular gear/modal analysis/natural frequency引用本文复制引用
基金项目
浙江省教育厅一般项目(Y202249437)
金华市公益性技术应用研究项目(2022-4-069)
浙江师范大学行知学院省部级预研项目(ZC304923031)
出版年
2024
NETL
NSTL
万方数据