作者: 龙凯,程颖 (北京理工大学车辆与交通工程学院;北京理工大学车辆与交通工程学院)
出处: 计算机仿真 2002 第6期 P87-88,91
关键词: 齿轮;激振力;仿真
摘要: 该文通过建立某传动系统的三维实体模型 ,以Hertz弹性撞击理论为基础 ,合理地定义了齿轮激振力的参数 ,利用多体动力学仿真软件ADAMS进行了齿轮啮合力仿真计算 ,并给出某一特定传动条件下的齿轮激振力的计算结果。结果表明 ,该文提出的齿轮激励力仿真计算时参数选取是合理的。
作者: 席军强,丁华荣,陈慧岩 (北京理工大学)
出处: 汽车工程 2002 第2期 P89-94
关键词: 自动变速;ASCS;AMT
摘要: 自动变速操纵系统ASCS(Automatic Shift Control System)是一种可以使车辆传动系统实现自动或半自动操纵的系统,ASCS与传统手动固定轴式机械变速系统MT(Manual Transmission)相结合构成了自动机械传动系统AMT(Automated Mechanical ...
作者: Wang, Hongzhou1;Deng, Lihu1;Ge, Weigao1; (1Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, China)
出处: Acta Mathematicae Applicatae Sinica 2002 Vol.18 No.3 P523-528
摘要: In this paper we study a class of semi-positone singular boundary value problem. With prior bounds estimate and topology degree method, some existence ...
作者: Sun, Weiping1;Ge, Weigao1; (1Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, China)
出处: Acta Mathematicae Applicatae Sinica 2002 Vol.18 No.2 P341-348
摘要: The existence of infinitely many solutions to Sturm-Liouville boundary value problem with a Laplacian-like operator is studied by applying generalized ...
作者: 姚延荪,邹健 (Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国物理:英文版 2002 第11卷 第11期 P1200-1204
关键词: Josephson;junction;quantized;field;collapse;and;revival;damping;rate
摘要: We study the quantum dynamics of a single-Cooper-pair box biased by a classical voltage and also irradiated by asingle-mode quantized field. We demons ...
作者: 李显方,范天佑 (College of Science, Hunan Normal University, Changsha, Hunan 410081, China;Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国物理(英文版) 2002 第11卷 第3期 P266-271
关键词: quasi-crystal;crack;elastic;field;energy;release;rate;singularity
摘要: The elastic analysis of a mode Ⅱ Griffith crack penetrating through a decagonal quasi-crystal along the periodicaxis is made within the context of the ...
作者: 王树勇,梅凤翔 (Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国物理(英文版) 2002 第11卷 第1期 P5-8
关键词: analytical;mechanics;non-holonomic;mechanics;form;invariance;Lie;symmetry
摘要: In this paper, we study the relation between the form invariance and Lie symmetry of non-holonomic systems.Firstly, we give the definitions and criter ...
作者: 金海,李正元,叶其孝 (Department of Mathematics, Beijing Institute of Education, Beijing 100044, China;School of Mathematical Sciences, Peking University, Beijing 100871, China;Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, China)
出处: 数学物理学报(英文版) 2002 第22卷 第2期 P227-240
关键词: Differential;inequality;reaction-diffusion;system
摘要: In this paper, positiveness theorems of solutions for several differential inequalities are proved and are used to prove the existence of traveling wa ...
作者: HE Zhi Min (Department of Applied Mathematics and Applied Software, Central South University, Changsha 410083, P. R. China;Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, P. R. China)
出处: 数学学报(英文版) 2002 第18卷 第2期 P253-262
关键词: Impulsive;functional;differential;equation;Upper;and;lower;solution;Monotone;iterative;technique;Periodic;boundary;value;problem
摘要: This paper uses the method of upper and lower solutions and the monotone iterativetechnique to investigate the existence of maximal and minimal soluti ...
作者: 理华,徐春广,肖定国 (北京理工大学机械工程与自动化学院)
出处: 轴承 2002 第1期 P24-26,40
关键词: 滚动轴承;声发射;故障诊断
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