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Chinese Journal of Aeronautics 2024年第3期37卷 404-416页

作者： huibin sun Meng LIU Yingzhi ZHANG Chenle WEI Key Laboratory of High Performance Manufacturing for Aero Engine Ministry of Industry and Information TechnologyNorthwestern Polytechnical UniversityXi’an 710072China AECC South Industry Company Limited Zhuzhou 412002China

Due to the excellent self-centering and load-carrying capability,curvic couplings have been widely used in advanced aero-engine ***,curvic tooth surface errors lead to poor assembly *** physical-master-gauge-based indirect tooth surface error measurement and circumferential assembly angle optimization methods have the disadvantages of high cost and weak *** unknown tooth surface fitting mechanism is a big barrier to assembly precision prediction and ***,this work puts forward a data-driven assembly simulation and optimization approach for aero-engine rotors connected by curvic *** origin of curvic tooth surface error is deeply *** 5-axis sweep scan method,a large amount of high-precision curvic tooth surface data are acquired *** on geometric models of parts,the fitting mechanism of curvic couplings is uncovered for assembly precision simulation and prediction.A circumferential assembly angle optimization model is developed to decrease axial and radial assembly *** results show that the assembly precision can be predicted accurately and improved *** uncovering the essential principle of the assembly precision formation and proposing circumferential assembly angle optimization model,this work is meaningful for assembly quality,efficiency and economy improvement of multistage aero-engine rotors connected by curvic couplings.

关键词： Curvic couplings Tooth surface error Assembly precision Axial and radial runouts Circumferential assembly angle

Multiple-Stimuli Responsive Luminescent Gels Based on Cholesterol Containing Benzothiadiazole Fluorophores

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Chinese Journal of Chemistry 2015年第10期33卷 1140-1144页

作者： huibin sun Shujuan Liu Qiang Zhao Wei Huang Key Laboratory for Organic Electronics and lnformation Displays & Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications Nanjing 210023 Jiangsu China Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM) Jiangsu NationalSynergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University (NanjingTech) Nanjing 211816 Jiangsu China

Two new fluorescent organogelators based on cholesterol containing benzothiadiazole group have been de- signed and synthesized. Three methods for gels preparation have been presented, such as heating-cooling process, ultrasonic treatment and mixed solvents under room temperature. For both of the gels, their states and emission col- ors exhibit striking changes upon addition of Hg^2＋. The gelation properties, structural characteristics and fluores- cence of the gels were studied by FT-IR, UV-Vis absorption and PL spectra. The underlying mechanism of gelation property was studied by X-ray diffraction combined with theoretical calculation, and the important role of π-π in- teractions in forming the gels has been proved.

关键词： organogel nanofibers nanotubes fluorescence sensor

Characterization of Nucleation Behavior in Temperature-Induced BCC-to-HCP Phase Transformation for High Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2021年第11期34卷 1546-1556页

作者： Xiusong Huang Lehua Liu Weibing Liao Jianjun Huang huibin sun Chunyan Yu College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials South China University of TechnologyGuangzhou 510640China

Phase transformation is one of the essential topics in the studies on high entropy alloys(HEAs).However,characterization of the nucleation behavior in the phase transformation for HEAs is still challenging through experimental *** the present work,HfNbTaTiZr HEA was chosen as the representative material,and molecular dynamics/Monte Carlo(MD/MC)simulations were performed to investigate the nucleation behavior in temperature-induced BCC-to-HCP transformation for this HEA *** results indicate that Nb–Ta,Ti–Zr,Hf–Zr and Hf–Ti atom pairs are preferred in the BCC solid solution of HfNbTaTiZr HEA and Hf–Ti–Zr-rich atom cluster with chemical short range order acts as the nucleation site for HCP *** nucleation process follows the non-classical two-step nucleation model:BCC-like structure with severe lattice distortion forms first and then HCP structure nucleates from the BCC-like ***,at low temperature,the BCC-to-HCP nucleation hardly occurs,and the BCC solid solution is *** present work provides more atomic details of the nucleation behavior in temperature-induced BCC-to-HCP phase transformation for HEA,and can help in deep understanding of the phase stability for HEAs.

关键词： Atomistic characterization Nucleation Lattice distortion Chemical short-range order HfNbTaTiZr High entropy alloys

A tip clearance prediction model for multistage rotors and stators in aero-engines

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Chinese Journal of Aeronautics 2021年第2期34卷 343-357页

作者： huibin sun Jing WANG Kai CHEN Huateng XIA Xin FENG Zhiyong CHANG Key Laboratory of High Performance Manufacturing for Aero Engine Ministry of Industry and Information TechnologyNorthwestern Poly technical UniversityXi'an 710072China AECC South Industry Company Limited Zhuzhou 412002China

Tip clearances of multistage rotors and stators greatly affect aero-engines’ aerodynamic efficiency, stability and safety. The inevitable machining and assembly errors, as well as the complicated error propagation mechanism, cause overproof or non-uniform tip clearances. However, it is generally accepted that tip clearances are difficult to predict, even under assembly state. In this paper, a tip clearance prediction model is proposed based on measured error data. Some 3 D error propagation sub-models, regarding rotors, supports and casings, are built and combined. The complex error coupling relationship is uncovered using mathematical methods. Rotor and stator tip clearances are predicted and analyzed in different phase angles. The maximum, minimum and average tip clearances can be calculated. The proposed model is implemented by a computer program,and a case study illustrates its performance and verifies its feasibility. The results can be referred by engineers in assembly quality judgement and decision-making.

关键词： Tip clearance Prediction Error propagation model Rotor and stator Aero-engine Assembly

Pulse control of frequency and width for a real-time independently adjustable laser source

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Frontiers of Information Technology & Electronic Engineering 2021年第10期22卷 1379-1389页

作者： Zhiwei YANG Xu WU Deqin OUYANG Encheng ZHANG huibin sun Shuangchen RUAN Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Physics Science and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China College of Sino-German Intelligent Manufacturing Shenzhen Technology UniversityShenzhen 518118China

A set of semiconductor laser pulse seed sources based on an embedded chip is *** greatest feature is that the optical pulse frequency and width can be independently adjusted in real *** pulse seed sources can be switched independently and online from the gain-switched mode to the quasi-continuous wave mode to obtain optimal optical parameters for specific *** explore the physical mechanism of the semiconductor laser source,the rate equation that describes the carrier-photon transient change in a semiconductor laser cavity is numerically derived and ***,problems that need to be considered while designing the drive circuit are *** system evaluation indicates that the optical pulse frequency adjustment range is 250 Hz to 42 MHz,and the narrowest optical pulse output width is 80 *** pulse seed source can drive semiconductor lasers with different central wavelengths(1064,1550,and 1970 nm),and can also simultaneously drive two semiconductor lasers and output dual-band optical *** can be used as a seed source for general high-power optical systems,and exhibits good application value and extensive market prospects.

关键词： Electric variable control Electronic design automation and methodology Optical pulse generation Optical control

Dramatic transition between electric and magnetic rotations in ^(106)Ag

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Science China(Physics,Mechanics & Astronomy) 2014年第9期57卷 1669-1675页

作者： ZHENG Yun ZHU LiHua CHEN YongShou WU XiaoGuang HE ChuangYe HAO Xin LIU Ying WANG ZhiMin LI XueQin LI GuangSheng GAO ZaoChun sun huibin China Institute of Atomic Energy School of Physics and Nuclear Energy Engineering Beihang University Faculty of Science Shenzhen University School of Environmental and Biological Engineering Nanjing University of Science and Technology Nuclear and Radiation Safety Center Ministry of Environmental Protection

The lifetimes for the states of magnetic dipole band in106Ag have been measured using the Doppler-shift attenuation method via the reaction of100Mo(11B,5n)106Ag at a beam energy of 60 *** reduced transition strengths of the magnetic dipole band,the B(M1)/B(E2)ratios together with the signature of the level energy as a function of angular momentum for the positive parity states of106Ag show that a drastic change of excitation mode,that is,from electric rotation to magnetic rotation,occurs within one unit of spin at around Iπ=12+.Theoretical calculations based on the triaxial projected shell model consistently reproduce the experimental data and provide an explanation on the nature of observed phenomena such that the dynamical drift of the rotational axis suddenly from the principal axis to the tilted one,along the positive parity bands of106Ag.

关键词： lifetime measurements DSAM TPSM magnetic rotation electric rotation

Longitudinal follow-up survey of effects of oral health education on ECC

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世界最新医学信息文摘 2018年第42期 52-53页

作者： Ting Cui XiaoXiao Yang Ting Li Zeyu Li huibin sun Department of Stomatology The Affiliated hospital of Qingdao University

Objective To investigate the effect of oral comprehensive health care measures on the prevalence of early childhood caries in urban areas of *** A total of 345 children aged 4 to 5 years old in Qingdao city were recruited for a year to conduct a single blind randomized controlled clinical trial. The children from four different kindergartens were included in the study. They were randomly divided into an experimental group(160 children) and a control group(185 children). The experimental group received oral health examination, while the children in the control group received oral health examination only. After 1 year's intervention, the oral health status of two groups of children was statistically analyzed, in order to explore the effect of dental care on early childhood *** One year after intervention,the dmft and dmfs of the experimental group were significantly different from those in the control group(P < 0.05).One year later, the oral hygiene habits and eating habits of the children and parents in two groups were significantly different from those before(P< 0.001).Conclusion Studies have shown that the implementation of oral health education have a certain effect on the prevention and reduction of early childhood caries.

关键词： Caries Child Oral behavior Oral health education

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基于模板的虚拟企业制造信息跟踪方法研究

西安交通大学学报 2006年第1期40卷 36-39页

作者：孙惠斌江平宇西安交通大学机械工程学院

针对虚拟企业制造执行过程中对进度跟踪、成本跟踪和质量跟踪的需求,提出了一种基于实例化模板(TIT)网络模型的制造信息跟踪方法.该方法采用模板封装制造信息,用模板结构树体现产品信息对于不同配置、不同组织结构的交叉,并用TIT网络模... 详细信息

针对虚拟企业制造执行过程中对进度跟踪、成本跟踪和质量跟踪的需求,提出了一种基于实例化模板(TIT)网络模型的制造信息跟踪方法.该方法采用模板封装制造信息,用模板结构树体现产品信息对于不同配置、不同组织结构的交叉,并用TIT网络模型体现了制造信息在时间坐标轴上的动态性.在TIT搜索算法的支持下,通过制造和管理数据的实时视图和历史视图,实现了制造信息的实时跟踪与历史跟踪,不仅满足了虚拟企业中不同人员跟踪制造执行过程的需求,而且为移动制造协同提供了数据源.

关键词：模板制造信息跟踪实例化模板网络

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圆弧端齿齿面加工偏差对配合状态的影响

航空动力学报 2024年第5期39卷 253-261页

作者：孙帅孙惠斌付玄童浩颜诚西北工业大学机电学院航空发动机高性能制造工业和信息化部重点实验室西安710072 中国航发四川燃气涡轮研究院四川绵阳621000 中国航发南方工业有限公司湖南株洲412002

为了优化圆弧端齿装配工艺,对圆弧端齿齿面加工偏差对齿面配合状态的影响机理进行了研究。根据圆弧端齿加工原理,研究了关键成型参数对齿面偏差的影响规律,建立了圆弧端齿装配初始齿面间隙模型,研究了齿面偏差对端齿盘装配初始齿面间隙... 详细信息

为了优化圆弧端齿装配工艺,对圆弧端齿齿面加工偏差对齿面配合状态的影响机理进行了研究。根据圆弧端齿加工原理,研究了关键成型参数对齿面偏差的影响规律,建立了圆弧端齿装配初始齿面间隙模型,研究了齿面偏差对端齿盘装配初始齿面间隙的影响规律。理论研究和试验研究表明:齿面偏差是导致装配初始齿面间隙的直接原因。通过优化安装相位能使装配初始齿面间隙的均值减小18%,方差减小25%。为圆弧端齿连接结构装配精度形成原理与装配工艺优化研究提供基础,对于提高圆弧端齿连接的航空发动机转子装配品质具有重要的意义。

关键词：圆弧端齿装配工艺齿面偏差齿面间隙配合状态

Parametrization of woods-saxon potential for heavy-ion systems

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Science China(Physics,Mechanics & Astronomy) 2017年第8期60卷 28-34页

作者： Lin Gan ZhiHong Li huibin sun DanYang Pang Bing Guo YunJu Li Jun Su ShengQuan Yan ErTao Li YouBao Wang Gang Lian ZhiYu Han XinYue Li DongHui Li TianLi Ma ChangJin Pei YangPing Shen Yi Su Sheng Zeng Yong Zhou WeiPing Liu China Institute of Atomic Energy College of Physics and Energy Shenzhen University School of Physics and Nuclear Energy Engineering Beihang University

Several elastic scattering angular distributions of 12C from target nuclei of A≥ 39 are analyzed to extract the Woods-Saxon poten- tial parameters with the fixed imaginary potential and Coulomb radius parameters. Using the best fitted diffuseness parameters, the correlations of the real part parameters with A1/3 1 ＋ A1/3 2and incident energy are revealed, and the systematic Woods-Saxon potential parameters are presented for nucleus-nucleus interaction. The proposed potential parameters can reproduce not only the elastic scattering angular distributions induced by 12C, but also many elastic scattering angular distributions induced by the projectiles other than 12C, thus providing important inputs for the study of nuclear reactions of heavy-ion systems.

关键词： optical potential elastic scattering heavy-ion reactions