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Vibration characteristics of rotor system with tilting-pad journal bearing of elastic and damped pivots 被引量:3
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作者 刘思涌 肖忠会 +1 位作者 闫志勇 陈朱杰 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第1期134-140,共7页
In view of an entire dynamic model of tilting-pad journal bearing(TPJB) in which the pads swing and vibrate along geometric direction of preload, a TPJB of elastic and damped pivots was designed and manufactured. Vibr... In view of an entire dynamic model of tilting-pad journal bearing(TPJB) in which the pads swing and vibrate along geometric direction of preload, a TPJB of elastic and damped pivots was designed and manufactured. Vibration experiments were carried out under the conditions of different rotor bending stiffness and oil supply pressure to find out the relationship between the new bearing's vibration depression effect and other dynamic parameters of the rotor. The result shows that critical amplitudes can be efficaciously reduced while system's stability can be remarkably improved by this bearing. Besides, the bearing's effect of vibration depression weakens as the rotor bending stiffness increases, but heightens it as the oil supply pressure increases. 展开更多
关键词 tilting-pad journal bearing of elastic and damped pivots elastic shims damping stiffness oil supply pressure
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS 北大核心 2025年第1期I0005-I0005,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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Rapid solution for analysis of nonlinear fluid film force and dynamic behavior of a tilting-pad journal bearing-rotor system with turbulent and thermal effects 被引量:5
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作者 Yingze JIN Zhaoyang SHI +1 位作者 Xiaojing ZHANG Xiaoyang YUAN 《Friction》 SCIE CSCD 2020年第2期343-359,共17页
To analyze the nonlinear dynamics of a tilting-pad journal bearing(TPJB)-rotor system with high accuracy and speed,the database method(DM)is modified to rapidly determine the nonlinear fluid film force(NFFF)of a TPJB ... To analyze the nonlinear dynamics of a tilting-pad journal bearing(TPJB)-rotor system with high accuracy and speed,the database method(DM)is modified to rapidly determine the nonlinear fluid film force(NFFF)of a TPJB while considering turbulent and thermal effects.A high-accuracy,large-capacity NFFF database for a single pad is constructed by numerically solving the turbulent adiabatic hydrodynamic model for five equivalent state variables of the journal,which are discretized in the pad coordinates.The remaining variables are not discretized in the DM.A combined linear and parabolic interpolation polynomial based on the database is established to accurately calculate the NFFF of the tilting pads;thus,the NFFF of a four-pad TPJB is obtained in the bearing coordinates.The DM is applied to analyze and compare the nonlinear dynamic behavior of a water-lubricated TPJB-Jeffcott rotor system with and without turbulent and thermal effects.The present DM solution without these effects and the previous DM solution are shown to be consistent.The results demonstrate the importance of the flow regime and the negligibility of temperature increases in the nonlinear dynamics of a water-lubricated TPJB.This work contributes to the accurate and efficient analysis of the nonlinear dynamics of high-speed TPJBs and low-viscosity-fluid-lubricated TPJBs. 展开更多
关键词 tilting-pad journal bearing nonlinear fluid film force rotor dynamics turbulent flow thermal effect
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Nonlinear dynamic analysis of low viscosity fluid-lubricated tilting-pad journal bearing for different design parameters 被引量:4
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作者 Yingze JIN Fei CHEN +1 位作者 Jimin XU Xiaoyang YUAN 《Friction》 SCIE CSCD 2020年第5期930-944,共15页
To reveal nonlinear dynamic rules of low viscosity fluid-lubricated tilting-pad journal bearings(TPJBs),the effects of design parameters on journal center orbits and dynamic minimum film thicknesses of water-lubricate... To reveal nonlinear dynamic rules of low viscosity fluid-lubricated tilting-pad journal bearings(TPJBs),the effects of design parameters on journal center orbits and dynamic minimum film thicknesses of water-lubricated TPJBs with and without static loads are investigated.The hydrodynamic bearing force used in the nonlinear dynamic analysis is an approximate analytical solution including the turbulence effect.The results reveal the methods for vibration suppression and load capacity improvement and give an optimal pivot offset and clearance ratio that can maximize the minimum film thickness.The results also show that four-pad TPJBs with loads between pads are preferred due to good dynamic performance and load capacity.This study would provide some guidance for nonlinear design of low viscosity fluid-lubricated TPJBs under dynamic loads. 展开更多
关键词 journal center orbit dynamic minimum film thickness tilting-pad journal bearing bearing design parameter
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The Prediction of Dynamic Coefficients for Tilting-Pad Journal Bearings Based on an AGA-BP Neural Network 被引量:1
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作者 GAO Dang-cheng YIN Ming-hu CHEN Guo-ding 《International Journal of Plant Engineering and Management》 2014年第1期39-45,共7页
To provide real-time dynamic coefficients of tilting-pad journal bearings( TPJBs) for the dynamic analysis of a rotor-bearing system accurately,an improved error back propagation( BP) neural network model is built in ... To provide real-time dynamic coefficients of tilting-pad journal bearings( TPJBs) for the dynamic analysis of a rotor-bearing system accurately,an improved error back propagation( BP) neural network model is built in this paper.First,the samples are gained by solving the Reynolds equation with the finite differential method based on hydrodynamic lubrication theory.Secondly,the adaptive genetic algorithm( AGA) is applied to optimize the initial weights and thresholds of the BP neural network before training.Then,with a number of trial calculations,the optimum parameters for the neural network are obtained.Finally,an application case of the neural network is given as well as the results analysis.The results show that the AGA can efficiently prevent the training of the neural network from falling into a local minimum,and the AGA-BP neural network of dynamic coefficients for TPJBs built in this paper can meet the demand of engineering. 展开更多
关键词 neural network adaptive genetic algorithm tilting-pad journal bearing dynamic coefficients
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Journal Club教学法用于临床药学专业硕士研究生理论教学实践
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作者 蒋为薇 钱妍 《中国药业》 CAS 2024年第4期30-32,共3页
目的探讨Journal Club教学法在临床药学专业硕士研究生理论教学中的应用效果。方法选取重庆医科大学2022年的2020级(4名)、2021级(6名)临床药学专业硕士研究生为研究对象。课前,2个年级的学生分别以小组为单位,围绕与“临床药物治疗学... 目的探讨Journal Club教学法在临床药学专业硕士研究生理论教学中的应用效果。方法选取重庆医科大学2022年的2020级(4名)、2021级(6名)临床药学专业硕士研究生为研究对象。课前,2个年级的学生分别以小组为单位,围绕与“临床药物治疗学前沿”授课内容相关的2个临床用药问题,通过设定关键词、检索文献、分析评价、证据分级,制订最优用药方案;课中以幻灯片形式分享经典文献,并对最优用药方案进行循证药学证据分析。采用匿名问卷调查法统计对该教学法8个条目完全赞同、基本同意及否定的人数,并计算占比;授课教师对学生撰写的综述进行评分(90~100分、80~89分、70~79分、60~69分分别为优、良、中、及格);统计学生通过本轮教学的论文发表情况。结果2020级、2021级分别发放调查问卷4份、6份,均全部回收,有效回收率均为100.00%;对所有调查项目均完全赞同或基本同意的分别有29人次、47人次。期末考试成绩为优、良、中的,2020级分别有2名(50.00%)、1名(25.00%)、1名(25.00%),优良率为75.00%;2021级分别有2名(33.33%)、3名(50.00%)、1名(16.67%),优良率为83.33%。2021级学生有1篇综述发表在科学引文索引(SCI)期刊上。结论Journal Club教学法有助于提高学生的文献查阅能力和英文阅读能力,可调动自主学习的积极性,增强独立思考能力和科研创新意识。 展开更多
关键词 journal Club教学法 临床药学 硕士研究生 教学教育
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Journal of Integrative Agriculture(JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第3期I0002-I0002,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAsS).JIAis a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAS President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Journal of Integrative Agriculture (JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第6期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAss).JIA is a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAs President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS CSCD 北大核心 2024年第5期I0014-I0014,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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Journal of Integrative Agriculture(JIA)Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第10期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAASS).JIAis a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields. 展开更多
关键词 AGRICULTURAL journal JIA
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Journal of Sport and Health Science Guide for Authors
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《Journal of Sport and Health Science》 SCIE CAS CSCD 2024年第4期F0002-F0002,共1页
Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publish... Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publishes original and impactful research,topical reviews,editorials,opinion,and commentary papers relating physical and mental health,injury and disease prevention,traditional Chinese exercise,and human performance.Through a distinguished,carefully selected international editorial board,JSHS has adopted the highest academic standards,impeccable integrity,and an efficient publication platform. 展开更多
关键词 journal PREVENTION ACADEMIC
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Journal of Sport and Health Science Guide for Authors
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《Journal of Sport and Health Science》 SCIE CAS CSCD 2024年第2期F0002-F0002,共1页
Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publish... Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publishes original and impactful research,topical reviews,editorials,opinion,and commentary papers relating physical and mental health,injury and disease prevention,traditional Chinese exercise,and human performance.Through a distinguished,carefully selected international editorial board,JSHS has adopted the highest academic standards,impeccable integrity,and an efficient publication platform. 展开更多
关键词 journal PREVENTION EDITORIAL
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Journal of Integrative Agriculture (JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第5期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAsS).JIA is a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA'Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAs President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Journal of Sport and Health Science Guide for Authors
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《Journal of Sport and Health Science》 SCIE CSCD 2024年第1期F0002-F0002,共1页
Please visit https://www.sciencedirect.com/journal/journal-of-sport-and-health-science for the detailed version of Guide for Authors.Aims The Journal of Sport and Health Science (JSHS) is a peer-reviewed,international... Please visit https://www.sciencedirect.com/journal/journal-of-sport-and-health-science for the detailed version of Guide for Authors.Aims The Journal of Sport and Health Science (JSHS) is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publishes original and impactful research,topical reviews,editorials,opinion,and commentary papers relating physical and mental health,injury and disease prevention,traditional Chinese exercise,and human performance.Through a distinguished,carefully selected international editorial board,JSHS has adopted the highest academic standards,impeccable integrity,and an efficient publication platform. 展开更多
关键词 journal PREVENTION EDITORIAL
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Journal of Sport and Health Science Guide for Authors
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《Journal of Sport and Health Science》 SCIE CAS CSCD 2024年第3期F0002-F0002,共1页
Please visit https://www.sciencedirect.com/journal/journal-of-sport-and-health-science for the detailed version of Guide for Authors.Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,m... Please visit https://www.sciencedirect.com/journal/journal-of-sport-and-health-science for the detailed version of Guide for Authors.Aims The Journal of Sport and Health Science(JSHS)is a peer-reviewed,international,multidisciplinary scientific journal dedicated to the advancement of sport,exercise,physical activity,and health sciences.JSHS publishes original and impactful research,topical reviews,editorials,opinion,and commentary papers relating physical and mental health,injury and disease prevention,traditional Chinese exercise,and human performance.Through a distinguished,carefully selected international editorial board,JSHS has adopted the highest academic standards,impeccable integrity,and an efficient publication platform. 展开更多
关键词 journal PREVENTION EDITORIAL
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Journal Introduction:China Finance Review International
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《系统管理学报》 CSSCI CSCD 北大核心 2024年第1期275-276,共2页
Background The China Finance Review International is a flagship academic journal broadly covering the Chinese and international financial markets.The journal is founded by Antai College of Economics and Management at ... Background The China Finance Review International is a flagship academic journal broadly covering the Chinese and international financial markets.The journal is founded by Antai College of Economics and Management at Shanghai Jiao Tong University,one of the top universities in Asia.The China Finance Review International aims to publish quality empirical and theoretical works on important financial and economic issues in the profession.We encourage ground-breaking research related to new and niche areas in finance,such as Fintech and cryptos,ESG,climate finance,and socially responsible investments.We welcome critiques of existing literature and comparative analysis between emerging markets and developed economies. 展开更多
关键词 FINANCE journal BREAKING
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS CSCD 北大核心 2024年第6期I0015-I0015,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS CSCD 北大核心 2024年第16期I0015-I0015,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS CSCD 北大核心 2024年第7期I0015-I0015,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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Call for Papers from Journal of Future Foods
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《食品科学》 EI CAS CSCD 北大核心 2024年第3期I0015-I0015,共1页
FoodsJournal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal be... FoodsJournal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 PAPERS technology. journal
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