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轴承制造中磨削烧伤的分析和预防

今日制造与升级 2024年第8期 93-95页

作者：李绪前梁云峰杨光明舍弗勒(宁夏)有限公司宁夏银川750021 宁夏大学机械工程学院宁夏银川750021 银川东方气力运输设备有限公司宁夏银川750021

轴承零件的磨削加工过程中,磨削热会传导到被加工工件表面。这些热量在磨削过程中来不及传入工件深处,而是聚集在表层形成局部高温,当超过某一临界值时,就会引起淬火后的轴承工件表面机械性能和局部组织发生变化,这种变化称为磨削烧伤... 详细信息

轴承零件的磨削加工过程中,磨削热会传导到被加工工件表面。这些热量在磨削过程中来不及传入工件深处,而是聚集在表层形成局部高温,当超过某一临界值时,就会引起淬火后的轴承工件表面机械性能和局部组织发生变化,这种变化称为磨削烧伤。文章主要分析轴承制造中磨削烧伤的情况及预防,以期为行业提供借鉴。

关键词：磨削加工磨削烧伤冷却液砂轮

Improved training framework in a neural network model for disruption prediction and its application on EXL-50

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Plasma Science and Technology 2024年第5期26卷 29-39页

作者：蔡剑青梁云峰 Alexander KNIEPS 齐东凯王二辉向皓明廖亮黄杰阳杰黄佳刘建文 Philipp DREWS 徐帅顾翔高轶琛罗宇李直 the EXL-50 Team Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Cluster(TEC)Jülich 52425Germany ENN Science and Technology Development Co. LtdLangfang 065001People’s Republic of China

A neural network model with a classical annotation method has been used on the EXL-50tokamak to predict impending ***,the results revealed issues of overfitting and overconfidence in predictions caused by inaccurate *** mitigate these issues,an improved training framework has been *** this approach,soft labels from previous training serve as teachers to supervise the further learning process;this has lead to a significant improvement in predictive model ***,this enhancement is primarily attributed to the coupling effect of the soft labels and correction *** improved training framework introduces an instance-specific label smoothing method,which reflects a more nuanced model assessment on the likelihood of a *** presents a possible solution to effectively address the challenges associated with accurate labeling across different machines.

关键词： neural network disruption soft label EXL-50 tokamak

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环氧乙烷/乙二醇生产装置用能分析与调优

现代化工 2003年第11期23卷 43-46页

作者：杜建军梁云峰樊希山大连理工大学化工系统工程研究所辽宁大连116012

利用以夹点技术为基础的针对大型复杂过程系统用能的诊断和调优策略,对环氧乙烷/乙二醇生产装置全过程进行用能分析,找到了系统用能不合理的地方。同时应用化工流程模拟软件Aspen plus和自行开发的软件对系统用能进行调优,提出了改造方案。

关键词：能量集成夹点分析环氧乙烷乙二醇过程系统节能改造生产装置用能分析

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全尺寸独头巷道内瓦斯爆炸超压预测模型

煤炭学报 2009年第1期34卷 15-17页

作者：梁云峰周心权张九零邵劭中国矿业大学(北京)煤炭资源与安全开采国家重点实验室北京100083

通过对TNT当量法理论的分析,以及对全尺寸独头巷道内瓦斯爆炸超压数据的研究,建立了全尺寸独头巷道内瓦斯爆炸超压随距离衰减的预测模型,并通过3个实例对其进行了验证.验证结果表明:该预测模型的计算值和实验值吻合较好.

关键词：独头巷道爆炸超压 TNT当量法

Impact of T_(i)/T_(e )ratio on ion transport based on EAST H-mode plasmas

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Plasma Science and Technology 2024年第4期26卷 68-78页

作者：刘建文臧庆梁云峰陈佳乐邬潇河 Alexander KNIEPS 扈嘉辉金仡飞张斌储宇奇刘海庆吕波段艳敏李妙辉陈颖杰龚先祖 the EAST Team Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)Jülich 52425Germany

At the EAST tokamak, the ion temperature(T_(i)) is observed to be clamped around 1.25 keV in electron cyclotron resonance(ECR)-heated plasmas, even at core electron temperatures up to 10 keV(depending on the ECR heating power and the plasma density). This clamping results from the lack of direct ion heating and high levels of turbulence-driven transport. Turbulent transport analysis shows that trapped electron mode and electron temperature gradient-driven modes are the most unstable modes in the core of ECR-heated H-mode plasmas. Nevertheless, recently it was found that the T_(i)/T_(e)ratio can increase further with the fraction of the neutral beam injection(NBI) power, which leads to a higher core ion temperature(Ti0). In NBI heating-dominant H-mode plasmas, the ion temperature gradient-driven modes become the most unstable ***, a strong and broad internal transport barrier(ITB) can form at the plasma core in high-power NBI-heated H-mode plasmas when the T_(i)/T_(e)ratio approaches ~1, which results in steep core Teand Tiprofiles, as well as a peaked neprofile. Power balance analysis shows a weaker Teprofile stiffness after the formation of ITBs in the core plasma region, where Ticlamping is broken,and the core Tican increase further above 2 keV, which is 80% higher than the value of Ticlamping in ECR-heated plasmas. This finding proposes a possible solution to the problem of Ticlamping on EAST and demonstrates an advanced operational regime with the formation of a strong and broad ITB for future fusion plasmas dominated by electron heating.

关键词： ion temperature clamping transport neutral beam injection stiffness internal transport barrier

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高计数率软X射线能谱仪诊断高温等离子体

核聚变与等离子体物理 1997年第3期17卷 57-60页

作者：梁云峰中国科学院等离子体物理研究所

本文给出了在ＨＴ－６Ｍ托卡马克装置上做ＥＣＲＨ实验时，用软Ｘ射线诊断等离子体电子温度的数据及处理结果。还尝试了能够提供每次放电数据的方法。如果在实验中要求温度的时间分布，本方法能够及时提供每次放电的电子温度及其随时间... 详细信息

本文给出了在ＨＴ－６Ｍ托卡马克装置上做ＥＣＲＨ实验时，用软Ｘ射线诊断等离子体电子温度的数据及处理结果。还尝试了能够提供每次放电数据的方法。如果在实验中要求温度的时间分布，本方法能够及时提供每次放电的电子温度及其随时间变化的情况。

关键词：等离子体诊断堆积效应软X射线能谱仪高温

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Pb-Sn合金固-液转变过程的内耗行为

物理学报 2000年第7期49卷 1327-1330页

作者：梁云峰水嘉鹏陈刚朱震刚中国科学院固体物理研究所内耗与固体缺陷开放研究实验室合肥230031

在连续升温过程中 ,测量了Pb Sn合金的内耗 .实验发现 :在共晶成分范围内 ,伴随着Pb Sn合金的固—液转变 ,内耗值出现突然下降 .内耗值的下降幅度与Pb Sn合金成分有关 .固—液转变过程中的内耗是由材料结构变化或弛豫时间变化引起的 .

关键词：内耗固-液转变 Pb-Sn合金

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新型防晒霜的研制

精细化工 1998年第4期15卷 18-20页

作者：徐宝财赵珞梁云峰北京轻工业学院

选择优异的ＵＶＢ及ＵＶＡ防护剂相复配，并添加适当药物及营养成分，通过配方优选、性能测试、防晒因子测定，研制了高效、安全的新型防晒化妆品。

关键词：防晒霜化妆品护肤品

Characteristics of the SOL ion-to-electron temperature ratio on the J-TEXT tokamak with different plasma configurations

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Plasma Science and Technology 2024年第2期26卷 13-21页

作者：李存凯梁云峰江中和周松华建坤阳杰杨庆虎 Alexander KNIEPS Philipp DREWS 徐鑫毛飞越谢伟杨雨桐郭金龙李杨波任正康陈志鹏王能超 the J-TEXT Team International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People's Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung—PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)Julich 52425Germany 不详

Accurate measurement of the average plasma parameters in the edge region,including the temperature and density of electrons and ions,is critical for understanding the characteristics of the scrape-off layer(SOL) and divertor plasma transport in magnetically confined fusion *** the J-TEXT tokamak,a multi-channel retarding field analyzer(RFA) probe has been developed to study average plasma parameters in the edge region under various poloidal divertor and island divertor *** edge radial profile of the ion-to-electron temperature ratio,τ_(i/e),has been determined,which gradually decreases as the SOL ion self-collisionality,v_(SOL)*,*** is broadly consistent with what has been observed previously from various tokamak ***,the comparison of experimental results under different configurations shows that in the poloidal divertor configuration,even under the same v_(SOL)*,τ_(i/e) in the SOL region becomes smaller as the distance from the X-point to the target plate *** the island divertor configuration,τ_(i/e) near the O-point is higher than that near the X-point at the same v_(SOL)*,and both are higher than those in the limiter *** results suggest that the magnetic configuration plays a critical role in the energy distributions between electrons and ions at the plasma boundary.

关键词： ion temperature island divertor poloidal divertor retarding field analyzer(RFA)probe