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Design and Research on the Special System for High Efficient Manufacturing of Blisk Based on UG
Yaonan Cheng,Rui Guan,Diange Zuo,Tianqi Chen,Li Liu 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.10
As one of the most important parts of aeroengine, blisk has complex structure and its material is titanium alloy hard to machine. It results in some difficulties in modeling and NC programming. In this paper, from the perspective of application, the secondary development technology of UG/Open Grip is used to design and develop the CAD/CAM module of blisk after analyzing structure feature and milling process of blisk. Firstly, it completes parametric modeling of blisk by establishing CAD module through the optimization of the original data points in NUBRS curve fitting and node interpolation technology; secondly, the inner and outer tolerance algorithm are applied to calculate the cutting step, and the row spacing is determined based on constant scallop height. Besides, tool axis vector is defined. All of these things are done to complete the establishment of the CAM module and realize trajectory planning of semi-finish machining of the blisk. It greatly improves the efficiency of programming and machining in blisks; finally, the module of blisk designed is used to model and program in the machining experiments in five axis machining center to verify correctness and reliability of the system. The results show that this module greatly improves manufacturing efficiency of blisk.
Thermal deformation analysis and compensation of the direct-drive five-axis CNC milling head
Yaonan Cheng,Xianpeng Zhang,Guangxin Zhang,Wenqi Jiang,Baowei Li 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.9
The machining precision of the milling head is primarily affected by the thermal errors that originated from the thermal deformation. Thermal error compensation is an economical and efficient method to overcome these thermal errors. The milling head’s heat source is analyzed to calculate the thermal boundary load based on component parameters of the milling head. The milling head’s thermal deformation is then simulated using ANSYS software to achieve the milling head’s temperature distribution and the amount of thermal deformation. Through the design and construction of the milling head temperature and thermal deformation experiment platform, the thermal deformation experiment of the milling head is performed. Accordingly, the measuring point temperature and the tooltip offset are obtained. Finally, a thermal error compensation method is proposed based on the homogeneous transformation. The research results give a theoretical reference and technical support for the thermal error compensation, optimized design, and development of milling heads.
Yi Zuo,Yaonan Wang,Lihong Huang,Chunsheng Li 대한수학회 2009 대한수학회지 Vol.46 No.5
This paper considers the problem of existence and exponential stability of almost periodic solution for shunting inhibitory cellular neural networks with distributed delays and large impulses. Based on the contraction principle and Gronwall-Bellman's inequality, some sufficient conditions are obtained. The results of this paper are new and they complement previously known results. This paper considers the problem of existence and exponential stability of almost periodic solution for shunting inhibitory cellular neural networks with distributed delays and large impulses. Based on the contraction principle and Gronwall-Bellman's inequality, some sufficient conditions are obtained. The results of this paper are new and they complement previously known results.
Hang Zhong,Yaonan Wang,Zhiqiang Miao,Jianhao Tan,Ling Li,Hui Zhang,Rafael Fierro 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.1
The problem of circumnavigating a moving target in a three dimensional setting by a network of agentswhile avoiding inter-agent collisions is addressed in this paper. A distributed control strategy is proposed for themulti-agent system to achieve three objectives: reaching the target plane with predesigned orientation, circulatingaround the target with prescribed radius, and avoiding collisions among agents. After representing the controlobjectives by three potential functions, the gradient fields of which are orthogonal to each other, the control lawthen is developed using the gradient vector field-based approach. The novelty of the proposed controller lies in theorthogonality of the vector fields, which decouples the control objectives and ensures global asymptotic convergenceto the desired motion, subject to some mild initial condition constraints. The stability and convergence analysis arepresented using Lyapunov tools, and the effectiveness of the proposed control strategy is demonstrated throughnumerical simulations.
Zuo, Yi,Wang, Yaonan,Huang, Lihong,Li, Chunsheng Korean Mathematical Society 2009 대한수학회지 Vol.46 No.5
This paper considers the problem of existence and exponential stability of almost periodic solution for shunting inhibitory cellular neural networks with distributed delays and large impulses. Based on the contraction principle and Gronwall-Bellman's inequality, some sufficient conditions are obtained. The results of this paper are new and they complement previously known results.
Sports injury treatment and sports rehabilitation employing the Nanoparticles containing zinc oxide
Zhichao Ma,Jie Qi,Weiwei Xun,Yaonan Li Techno-Press 2023 Advances in nano research Vol.15 No.1
The combination of physical activities and individual skills in sports creates an entertaining and competitive environment governed by a set of rules. In today's world, sports attract significant attention and are approached differently by various groups. Inevitably, injuries occur in sports, significantly impacting an athlete's performance and ability to participate in exercises and competitions. Addressing this issue, one of the crucial measures involves restoring the athlete's ability to engage in sports and compete. Sports rehabilitation serves as a treatment to mitigate the effects of injuries, and when combined with surgery, it can expedite the recovery process. Therefore, the primary objective of this study is to utilize a biocompatible technology for synthesizing zinc oxide (ZnO) nanoparticles in sports rehabilitation, ensuring minimal harm to the environment.