检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

409 篇 会议
129 篇 期刊文献
6 册 图书

馆藏范围

544 篇 电子文献
2 种 纸本馆藏

日期分布

学科分类号

486 篇 工学
- 185 篇 控制科学与工程
- 164 篇 材料科学与工程（可...
- 159 篇 力学（可授工学、理...
- 144 篇 机械工程
- 144 篇 计算机科学与技术...
- 133 篇 电气工程
- 130 篇 航空宇航科学与技...
- 116 篇 土木工程
- 93 篇 软件工程
- 76 篇 电子科学与技术（可...
- 41 篇 仪器科学与技术
- 36 篇 化学工程与技术
- 28 篇 建筑学
- 10 篇 信息与通信工程
- 7 篇 冶金工程
- 7 篇 动力工程及工程热...
- 4 篇 光学工程
- 3 篇 生物医学工程（可授...
- 1 篇 测绘科学与技术
381 篇 理学
- 312 篇 物理学
- 273 篇 数学
- 7 篇 统计学（可授理学、...
- 6 篇 系统科学
- 4 篇 化学
- 2 篇 生物学
6 篇 管理学
- 6 篇 管理科学与工程(可...
- 2 篇 工商管理
1 篇 经济学
- 1 篇 应用经济学
1 篇 法学
- 1 篇 社会学
1 篇 教育学
- 1 篇 教育学
1 篇 军事学

主题

86 篇 actuators
78 篇 control systems
76 篇 intelligent stru...
72 篇 sensors
65 篇 vibration contro...
46 篇 smart structures
35 篇 composites
34 篇 smart materials
27 篇 feedback control
25 篇 ferroelectric ma...
19 篇 structures (buil...
19 篇 mathematical mod...
17 篇 chemical element...
17 篇 finite element m...
14 篇 matrices
14 篇 aluminum
14 篇 systems modeling
14 篇 acoustics
14 篇 aerospace engine...
13 篇 fiber optics sen...

机构

8 篇 the pennsylvania...
8 篇 virginia polytec...
7 篇 univ. of missour...
6 篇 pennsylvania sta...
5 篇 chungnam natl un...
4 篇 the ohio state u...
4 篇 lanzhou univ
3 篇 massachusetts in...
3 篇 univ dayton res ...
3 篇 massachusetts in...
3 篇 univ. of utah sa...
3 篇 univ of missouri...
3 篇 purdue univ sch ...
3 篇 inha univ. inche...
3 篇 dongguk univ kor...
3 篇 univ manchester ...
3 篇 virginia polytec...
3 篇 martec ltd halif...
3 篇 catholic univ am...
3 篇 pennsylvania sta...

作者

12 篇 varadan vasundar...
12 篇 rao vittal s.
10 篇 librescu liviu
10 篇 varadan vijay k.
6 篇 atalla mauro j.
6 篇 varadan vk
6 篇 varadan vv
6 篇 librescu l
5 篇 inman daniel j.
5 篇 tomlinson gr
5 篇 rogers ca
5 篇 khot narendra s.
5 篇 gopinathan senth...
5 篇 song ohseop
4 篇 kim jaehwan
4 篇 zhou you-he
4 篇 yedavalli rama k...
4 篇 hall steven r.
4 篇 wen john t.
4 篇 jiang qing

语言

542 篇 英文
1 篇 其他

检索条件"任意字段=Smart Structures and Materials 1994: Mathematics and Control in Smart Structures"

共 544 条记录，以下是271-280 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Problem of the local field for plane grids with bianisotropic particles

Problem of the local field for plane grids with bianisotropi...

引用

smart structures and materials 1997: mathematics and control in smart structures

作者： Belov, Pavel A. Simovski, Constantine R. Kondratjev, Michael S. St. Petersburg Inst. of Fine Mechanics and Optics St. Petersburg Russia

ISBN: (纸本)0819424528

A problem of local field for 2D regular and weakly non- regular arrays of bi-anisotropic particles is considered. Such arrays are excited by an incident plane electromagnetic wave. The local field is formed by incident wave and by all the particles besides an arbitrary chosen particle under consideration which can be named as zero-particle. For infinite or very large arrays we can express the local fields with only tow vector complex values which are to be defined in frames of the separate problem of an exciting and scattering by such grids. But the equations relating electric and magnetic dipole moments of zero-particle with an incident wave field are that we find in this paper. Since these moments can be easily related with the surface density of electric and magnetic moments averaged on the grid surface the equations under consideration are analogues with the known local field formulae in theories of 3D media. Our relations are given by several dyadics which are named below as key dyadics.

关键词： Intelligent structures

来源：评论

学校读者我要写书评

暂无评论

Nonlinear modeling for control of Terfenol-D-based actuators

Nonlinear modeling for control of Terfenol-D-based actuators

引用

smart structures and materials 1997: mathematics and control in smart structures

作者： Dozor, David M. Gerver, Michael J. Swenbeck, J.R. SatCon Technology Corp. Belmont MA USA

ISBN: (纸本)0819424528

Nonlinear modeling and control methods can be used to increase the usable range of operation of Terfenol-D. Presently, in dynamic applications the usable range of Terfenol-D is often limited to approximately 850ppm. This limitation is imposed by harmonic distortion, spurious vibration, and/or tracking error considerations. These nonlinear effects are due to large variations in the magnetoelastic parameters and hysteresis. The preliminary results of this program indicate that a large performance advantage may be gained through proper control of the nonlinearities. As an example, a recently designed reaction mass actuator that weighs 1.125lbm can produce peak forces as high as 125lbf. However, to limit the open-loop total harmonic distortion to less than 2 percent requires that peak forces be limited to roughly 65lbf. To determine the magnetoelastic parameters, quasi-static experiments were performed with a specially designed apparatus. The research included modeling and simulation based on the static nonlinear magnetoelastic equations. Under assumptions of quasi-static magnetoelastic behavior, a fourth-order linear model was extended with the static nonlinearities. The model is compared with preliminary experiments. These types of models will allow nonlinear control strategies to be developed for Terfenol-D based actuators, thus extending the harmonic-free operating range.

关键词： control systems

来源：评论

学校读者我要写书评

暂无评论

Antiphase control system for active microvibration damping onboard satellites

Antiphase control system for active microvibration damping o...

引用

smart structures and materials 1997: mathematics and control in smart structures

作者： Vaillon, Ludovic H. Philippe, Christian Matra Marconi Space Toulouse Fr

ISBN: (纸本)0819424528

Disturbances attenuation, typically up to 200 Hz, onboard satellites is a key issue for advanced optical space systems with stringent spatial and temporal resolution requirements. Under ESA contract, Matra Marconi Space has conducted an ambitious proof-of-concept programme aiming at designing and demonstrating through prototypes and test innovative active vibration damping systems. In particular, a centralized anti-phase control (APC) system operating on distributed sensors and actuators to compensate stationary harmonic disturbances has been breadboarded and tested. The APC algorithm involves three major functions: (i) extraction of the harmonics signal by synchronous demodulation, (ii) identification of the complex gains between sensors and actuators using a recursive least squares algorithm, and (iii) anti-phase computation. The control algorithm has been implemented on a real-time test bench based on a fast DSP computer. The experiment has been performed on an engineering model of a representative space platform, namely MARCOTS. The measured performances, i.e. harmonic rejection at the controlled frequencies, range from 20 to 40 dB and are consistent with predictions from numerical simulations. Finally, a major advantage of the APC algorithm is intrinsic robustness to actuator failures, without performance impact for a single failure and 10 dB degradation for a double failure.

关键词： Vibration control

来源：评论

学校读者我要写书评

暂无评论

control of sound radiation from a plate into an acoustic cavity using active piezoelectric-damping composites

Control of sound radiation from a plate into an acoustic cav...

引用

smart structures and materials 1997: mathematics and control in smart structures

作者： Shields, Wilfred H. Ro, J. Baz, Amr M. Catholic Univ. of America Arnold MD USA

ISBN: (纸本)0819424528

Sound radiation from a plate into an acoustic cavity is controlled using patches of active piezoelectric-damping composites (APDC). The APDC, under consideration, consists of piezoelectric fibers embedded across the thickness of a visco-elastic matrix in order to control the compressional damping characteristics of the composite. The effectiveness of the APDC treatments in attenuating the sound radiation from thin plates into cavities is demonstrated theoretically and experimentally. A finite element model (FEM) is developed to describe the dynamic interaction between the plate, the APDC patches and the acoustic cavity. The FEM is used to predict the dynamics of the plate/acoustic cavity and the sound pressure distribution for different control strategies. The predictions of the FEM are validated experimentally using a square aluminum plate whose sides are 29.8 cm and thickness of 0.04 cm. The plate is mounted on a 29.8 cm × 29.8 cm × 75 cm cavity. The test plate is treated with a single APDC patch placed at the plate center. The patch is 5 cm × 5 cm × 0.03125 cm which is made of 15-25 percent lead zirconate titanate fibers embedded in soft and hard polymeric resin matrices and provided with silver-epoxy electrodes. Vibration and sound pressure level attenuations of about 70 percent are obtained a the plate/cavity first mode of vibration, with a maximum control voltage of 330 volts using a derivative feedback controller. Such attenuations are attributed to the effectiveness of the APDC treatment in increasing the modal damping ratios by about a factor of four over those of conventional passive constrained layer damping treatments. Comparisons between the theoretical predictions of the FEM with the experimental results indicate close agreement between theory and experiments. The obtained results suggest the potential of the APDC treatments in controlling the sound radiation from plates into acoustic cavities. Such potential can be exploited in many critical applicati

关键词： Acoustic waves

来源：评论

学校读者我要写书评

暂无评论

smart structures and materials 1996: mathematics and control in smart structures

Smart Structures and Materials 1996: Mathematics and Control...

引用

smart structures and materials 1996: mathematics and control in smart structures

The proceedings contains 60 papers. Following topics are discussed: control of smart structures;shape memory alloys;mathematics of control;ferroelectric materials;control theory;finite element modeling;active/passive ... 详细信息

ISBN: (纸本)0819420905

关键词： Intelligent structures

来源：评论

学校读者我要写书评

暂无评论

Predictive neuro control of vibration in smart structures

Predictive neuro control of vibration in smart structures

引用

Conference on mathematics and control in smart structures

作者： Pado, LE Damle, RR MCDONNELL DOUGLAS CORP SMART STRUCT & SYSTST LOUISMO 63166

ISBN: (纸本)0819420905

Neural network based predictive control for random vibration suppression has been demonstrated on a cantilevered beam with bonded piezoelectric actuators and sensors. This real time system is run on a 60 MHz Pentium processor and is considered a stepping stone to both adaptive flutter suppression and buffet load alleviation in advanced aerospace vehicle. An extended neural control system using Intel/Nestor's ETANN analog neural network chip is discussed. Generalized neural predictive control uses a neural network based model of a system to make predictions about the effect of future control signals on the response of the system. These predictions can be used with a tailored performance index to determine the optimal control signal for the modeled system. A comparison of this approach with both PID and pole placement control methods shows ease of implementation comparable to that of the PID controller with the approximate performance of the pole placement method. The advantages of neural control over conventional control techniques include a simpler and more cost effective design methodology as well as the capability to learn on-line the time varying nature of a system due to wear, loss of actuators, or other causes.

关键词： neural networks predictive control vibration suppression smart structures ETANN

来源：评论

学校读者我要写书评

暂无评论

Decentralized adaptive control designs and microstrip antennas for smart structures

Decentralized adaptive control designs and microstrip antenn...

引用

smart structures and materials 1996: mathematics and control in smart structures

作者： Khorrami, Farshad Jain, Sandeep Das, Nirod K. Polytechnic Univ. Brooklyn NY USA

ISBN: (纸本)0819420905

smart structures lend themselves naturally to a decentralized control design framework, especially with adaptation mechanisms. The main reason being that it is highly undesirable to connect all the sensors and actuators in a large structure to a central processor. It is rather desirable to have local decision-making at each smart patch. Furthermore, this local controllers should be easily `expandable' to `contractible.' This corresponds to the fact that addition/deletion of several smart patches should not require a total redesign of the control system. The decentralized control strategies advocated in this paper are of expandable/contractible type. On another front, we are considering utilization of micro-strip antennas for power transfer to and from smart structures. We have made preliminary contributions in this direction and further developments are underway. These approaches are being pursued for active vibration damping and noise cancellation via piezoelectric ceramics although the methodology is general enough to be applicable to other type of active structures.

关键词： Adaptive control systems

来源：评论

学校读者我要写书评

暂无评论

Vibration control of smart structures featuring piezofilm actuator via discrete-time sliding modes

Vibration control of smart structures featuring piezofilm ac...

引用

smart structures and materials 1996: mathematics and control in smart structures

作者： Choi, Seung-Bok Kim, Myoung-Suk Inha Univ. Incheon South Korea

ISBN: (纸本)0819420905

An active vibration control of a smart flexible structure featuring a piezofilm actuator is presented in this study. A governing equation of motion for the smart beam structure is derived and a state space model is obtained in order to formulate a controller. A new discrete- time sliding mode controller is proposed for a single-input linear system with mismatched uncertainties. The main difference between the discrete-time sliding mode control and the continuous-time sliding mode control is the determination of the existence condition of the sliding mode. In the discrete-time case, both the sliding condition and the convergence condition must be satisfied. In the design of the discontinuous controller, a time-varying gain that is a function of the relation between predetermined sliding surface and representative points in the state space is adopted to minimize a sliding region. In addition, for faster reaching to the sliding surface, an equivalent controller separation method is employed. The proposed controller is applied to the smart structure, and control responses of transient and forced vibrations are evaluated by undertaking both simulation and experiment.

关键词： Intelligent structures

来源：评论

学校读者我要写书评

暂无评论

Convergence of numerical algorithms in feedback control optimization problems arising in smart material structural acoustic interactions

Convergence of numerical algorithms in feedback control opti...

引用

Conference on mathematics and control in smart structures

作者： Hendrickson, E Lasiecka, I ARKANSAS STATE UNIV DEPT MATH & COMP SCISTATE UNIVAR 72467

ISBN: (纸本)0819420905

This paper considers an optimal control problem constrained by coupled hyperbolic and parabolic-like dynamics arising in an acoustic structure interaction. A numerical algorithm, based on the FEM, is formulated for computations of solutions to associated Matrix Algebraic Riccati Equations. Results of a numerical simulation of the algorithm are presented.

关键词： Acoustics Algorithm development Chemical elements Feedback control Algorithms smart materials Bohrium Finite element methods Manganese Optimization (mathematics)

来源：评论

学校读者我要写书评

暂无评论

controllability and observability of vibration control systems with viscoelastic damping layers

Controllability and observability of vibration control syste...

引用

Conference on mathematics and control in smart structures

作者： Wu, JF Yang, BG UNIV SO CALIF DEPT ENGN MECHLOS ANGELESCA 90089

ISBN: (纸本)0819420905

In this paper a set of controllability and observability conditions are proposed for vibration control systems with viscoelastic damping. Both conditions are stated in terms of the eigenstructures (eigenvalues and eigenvectors) of the control systems under consideration. They are similar to the well known eigenvector tests, except that to determine controllability, the knowledge of the stress-strain relations of the viscoelastic damping material is needed in addition to the modal information.

关键词： controllability observability viscoelastic damping

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共55页 << < 24 25 26 27 28 29 30 31 32 33 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：