文献类型：期刊文献

英文题名：The Chaotic Property of BTA Deep-Hole Machining System under the Effect of Inner Cutting Fluid

作者：Zhang, Quanbin[1];Zhao, Wu[1];Li, Yamin[1,2];Jing, Shuangxi[1]

第一作者：Zhang, Quanbin

通讯作者：Zhao, W[1]

机构：[1]Henan Polytech Univ, Sch Mech & Power Engn, Jiaozuo 454000, Peoples R China;[2]Xinxiang Univ, Coll Mech & Elect Engn, Xinxiang 453003, Peoples R China

第一机构：Henan Polytech Univ, Sch Mech & Power Engn, Jiaozuo 454000, Peoples R China

通讯机构：[1]corresponding author), Henan Polytech Univ, Sch Mech & Power Engn, Jiaozuo 454000, Peoples R China.

年份：2023

卷号：2023

外文期刊名：SHOCK AND VIBRATION

收录：;EI(收录号：20232614303296);Scopus(收录号：2-s2.0-85162790341);WOS:【SCI-EXPANDED(收录号:WOS:001011234300001)】；

基金：AcknowledgmentsThis work was supported by the National Natural Science Foundation of China (no. 51075126) and Scientific and Technological Research Project of Henan Provincial Science and Technology Department (no. 192102210052).

语种：英文

外文关键词：Filling - Flow velocity - Hamiltonians - System stability

摘要：To clarify the action mechanism of parameter change on system stability, the chaotic property of BTA deep-hole machining system under the effect of inner cutting fluid was analyzed. According to the kinematic characteristics of the internal cutting fluid and the equation of the moment of momentum of the system, the kinematic equation of the boring bar considering the effect of the internal fluid was established. The critical conditions of chaos were deduced according to the Hamiltonian function and Melnikov function of the plane near-Hamilton system. The mechanism of the liquid filling ratio, cutting fluid flow velocity, and frequency ratio parameters on the system's critical instability surface is investigated. The correlation and sensitivity of influencing factors, such as filling ratio and frequency ratio, and cutting fluid flow velocity to the sensitivity of system chaos are explored. The results show that in precision machining, the change of liquid filling ratio is positively related to the stability of the system, the change of cutting fluid flow velocity is negatively correlated with the stability of the system, and the change of frequency ratio has no monotonicity effect on the stability of the system. The sensitivity of the chaotic characteristics of the system to each parameter is bounded by the filling liquid ratio h = 0.58. When 0 = h = 0.58, frequency ratio ? over bar > filling ratio h > cutting fluid flow velocity V-0; when 0.58 < h = 1, filling ratio h > frequency ratio ? over bar > cutting fluid flow velocity V-0. These research conclusions can lay a certain theoretical foundation for the analysis, control, and optimization of the complex mechanical behavior of BTA deep-hole machining systems in engineering practice.