mechanical systems
03 analysis of mechanical systems using interval computations applied to finite element methods o dessombz
Ngày tải lên :
12/01/2014, 21:45
... addresses the problem of mechanical systems in which parameters are
uncertain and bounded. Interval calculation is used to find an envelope of transfer
functions for mechanical systems modeled with ... analytically. The exact
mechanical solution set is given in Figure 2. It is called mechanical exact solution
set. The hull of this set (which is an interval vector) has also been drawn. The
mechanical exact ... solving linear systems of interval equations. We will then
introduce a new formulation of the problem, based on interval parameters which is
adapted for the modeling of mechanical systems.
An adaptation...
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Tài liệu Fundamentals of Robotic Mechanical Systems: Theory, Methods, and Algorithms, Second Edition P2 pdf
Ngày tải lên :
19/01/2014, 18:20
... undergone by robotic mechani-
cal systems or, for that matter, by mechanical systems at large, requires
a suitable motion representation. Now, the motion of mechanical systems
involves the motion of ... me-
chanical systems, and hence, appear as constituents of other, more complex
robotic mechanical systems, as will become apparent in later chapters. A
manipulator, in general, is a mechanical ... Robotic Mechanical Systems
FIGURE 1.3. Canadarm2 and Special-Purpose Dextrous Manipulator (courtesy
of the Canadian Space Agency.)
1.3 Serial Manipulators
Among all robotic mechanical systems...
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Tài liệu Fundamentals of Robotic Mechanical Systems: Theory, Methods, and Algorithms, Second Edition P1 ppt
Ngày tải lên :
19/01/2014, 18:20
... then
weendupwithadynamic mechanical system. For brevity, we will refer to
such systems as mechanical systems, the dynamic property being taken for
granted throughout the book. Mechanical systems of this ... a subclass of the much
broader class of mechanical systems. Mechanical systems, in turn, consti-
tute a subset of the more general concept of dynamic systems. Therefore,
in the final analysis, ... Robotic Mechanical Systems 401
10.1Introduction 401
10.2 Classification of Robotic Mechanical Systems with Regard
toDynamics 402
10.3 The Structure of the Dynamics Models of Holonomic Systems4 03
10.4...
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Tài liệu Microelectro mechanical Systems Engineering Second Edition doc
Ngày tải lên :
13/02/2014, 14:20
... Data
Maluf, Nadim.
An Introduction to microelectromechanical systems engineering–2nd ed. –(Artech House
microelectromechanical library)
1. Microelectromechanical systems
I. Title II. Williams, Kirt
621.3’81
ISBN ... into
complete microsystems.
One notable example is the evolution of crash sensors for airbag safety
systems. Early sensors were merely mechanical switches. They later evolved into
micromechanical sensors ... surveillance
Weapons safing, arming, and fusing
Integrated microoptomechanical components for identify-friend-or-foe
systems
Head- and night-display systems
Low-power, high-density mass data storage devices
Embedded...
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Tài liệu Nonholonomic Mechanical Systems with Symmetry ppt
Ngày tải lên :
22/02/2014, 08:20
... me-
chanical systems, and Lagrangian systems in particular. There are several reasons
why mechanical systems are good candidates for new results in nonlinear control.
On the practical end, mechanical systems ... references show.
1.2. Control Systems in Momentum Equation Form
1
To help clarify the link with control systems, we now discuss the general form
of nonholonomicmechanical control systems with symmetry ... main difference between classical work on nonholonomic systems and the
present work is that this paper develops the geometry of mechanical systems with
nonholonomicconstraintsand therebyprovidesa...
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MICRO-ELECTRO-MECHANICAL- SYSTEMS (MEMS) AND FLUID FLOWS pptx
Ngày tải lên :
09/03/2014, 00:20
... 30:579–612
Copyright
c
1998 by Annual Reviews Inc. All rights reserved
MICRO-ELECTRO -MECHANICAL-
SYSTEMS (MEMS) AND FLUID
FLOWS
Chih-Ming Ho
Mechanical and Aerospace Engineering Department, University of California ... to be inte-
grated with signal conditioning and processing circuitry to form micro-electro-
mechanical- systems (MEMS) that can performreal-timedistributed control. This
capability opens up a new ... available to
fabricate micron-sized mechanical parts. Micromachines have had a major
impact on many disciplines (e.g. biology, medicine, optics, aerospace, and
mechanical and electrical engineering)....
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.MODELLING OF MECHANICAL SYSTEMS VOLUME 2..MODELLING OF MECHANICAL SYSTEMS VOLUME 2Structural docx
Ngày tải lên :
22/03/2014, 13:20
... description) or the position of material points during
motion (Lagrangian description).
3. The mechanical properties of the continuum are described by scalar, vector,
and tensor fields, which ... the elastic strain energy 25
1.3.2.9. Equation of elastic vibrations 27
1.3.2.10. Conservation of mechanical energy 28
1.3.2.11. Uniqueness of solution of motion equations 29
1.4. Elastic waves ... been introduced and extensively used in
[AXI 04] for deriving the Lagrange equations of discrete systems. It is recalled
that this variational principle is expressed analytically as:
δ[A(t
1
,...
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Mechanical Systems, Classical Models potx
Ngày tải lên :
28/03/2014, 10:20
...
consider
discrete mechanical systems of particles (formed by a finite number of
particles) or
continuous mechanical systems. The main mechanical results which are
obtained for a mechanical system ... J
kgf⋅m
Energy (mechanical) E,T,V L
2
MT
-2
LF erg J
kgf⋅m
Power (mechanical) P L
2
MT
-3
LFT
-1
erg/s W
kgf⋅m/s
MECHANICAL SYSTEMS, CLASSICAL MODELS
60
2.1.3 Systems of units
The ...
dynamics of systems. It is understood that these considerations refer first to mechanical
systems; but, in general, taking into account the connection between various systems,
dynamics of systems...
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MODELING AND CONTROL OF NONHOLONOMIC MECHANICAL SYSTEMS doc
Ngày tải lên :
01/04/2014, 00:20
... nonholonomic mechanical
systems. In particular, three different sources of nonholonomy are considered: rolling
contacts without slipping, conservation of angular momentum in multibody systems,
and ... nonlinear
control systems are reviewed and used to obtain conditions for partial or complete non-
holonomy, so as to devise a classification of nonholonomic systems. Several kinematic
models of nonholonomic systems ... θ
N−1
)0
=
g
1
(q) g
2
(q)
. (7.28)
302 A. De Luca, G.Oriolo NONHOLONOMIC MECHANICAL SYSTEMS
makes x
e
asymptotically stable.
For nonlinear systems, this implication does not hold. Local results may be obtained
looking...
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Fundamentals of Robotic Mechanical Systems: Theory, Methods, and Algorithms, Second Edition doc
Ngày tải lên :
01/04/2014, 00:20
... possible.
A genealogy of mechanical systems, including robotic ones, is given in
Fig. 1.1. In that figure, we have drawn a dashed line between mechanical
systems and other systems, both man-made ... below.
1.2 The General Structure of Robotic Mechanical
Systems
From Section 1.1, then, a robotic mechanical system is composed of a few
subsystems, namely, (i) a mechanical subsystem composed in turn ... (2.41)
TLFeBOOK
Fundamentals of Roboti
c
Mechanical Systems:
Theory, Methods, and
Algorithms,
Second Edition
Jorge Angeles
Springer
TLFeBOOK
6 1. An Overview of Robotic Mechanical Systems
FIGURE 1.3. Canadarm2...
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Vibration of mechanical systems
Ngày tải lên :
08/04/2014, 11:49
... 58 Vibration of Mechanical Systems
From Equation 1.5.72,
ξ =
δ
(2π)
2
+ δ
2
= 0.001
Here, (2π)
2
+ δ
2
∼
=
(2π)
2
. ... 228
Exercise Problems 231
5 Finite and Infinite (Continuous) Dimensional Systems . . . . . 237
5.1 Multi-Degree-of-Freedom Systems 237
5.1.1 Natural Frequencies and Modal Vectors
(Mode Shapes) 239
5.1.2 ... ratio,
x
1
x
2
=
x
2
x
3
=···=
x
m−1
x
m
=
x
m
x
m+1
(1.5.73)
1
EQUIVALENT
SINGLE-DEGREE-OF-FREEDOM
SYSTEM AND FREE VIBRATION
The course on Mechanical Vibration is an important part of the
Mechanical Engineering undergraduate curriculum. It is necessary
for the...
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Micro Electronic and Mechanical Systems 2009 Part 1 ppt
Ngày tải lên :
21/06/2014, 18:20
... wall
(a) (b)
(c) (d)
tar
g
et aneur
y
sm
Micro Electronic
and
Mechanical Systems
Micro Electronic and Mechanical Systems
4
layer of cells. Biologists have studied cellular ... materials as
enabling technologies for the microsystems. Reliability issues concerning both electronic and
mechanical aspects of these devices and systems are also addressed in various chapters. ... concepts of
microsystems including micro aerial vehicles, microbots, and nanosatellites have been
proposed. Contrary to ordinary electronic devices, these microsystems perform mechanical
work...
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Micro Electronic and Mechanical Systems 2009 Part 2 pot
Ngày tải lên :
21/06/2014, 18:20
... Micro Electronic and Mechanical Systems
28
glass wafer, polydimethylsiloxane (PDMS), and low temperature co-fired ceramic ... usually used for startup period only due to its low thermal efficiency.
Micro Electronic and Mechanical Systems
50
Kim, T. & Kwon, S. (2006b). Preparation of Cu/ZnO for Fabrication of a ... Micromechanics and
Microengineering, Vol. 16, pp. S191–S197, 0960-1317
Micro Electronic and Mechanical Systems
60
Sugiyama, S.; Takigawa, M. & Igarski, I. (1983). Integrated piezoresistive...
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Micro Electronic and Mechanical Systems 2009 Part 3 ppt
Ngày tải lên :
21/06/2014, 18:20
... Jakšić, 2009). Such dimensions make them a hybrid between micro and
nanosystems, even between macroscopic systems and nanosystems, since their lateral
dimensions may be of the order of centimeters, ... sensing of mechanical movements is to utilize nanomembrane-based
freestanding waveguides for evanescent field sensing. This was proposed for optical
Micro Electronic and Mechanical Systems
... enable coupling – i.e., to ensure
phase matching between the two waves.
Micro Electronic and Mechanical Systems
70
Our nanomembranes were made using 50-20 nm thin sputtered films of chromium...
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