electrically controlled hydraulic system
Tài liệu BASIC HYDRAULIC SYSTEMS AND COMPONENTS docx
Ngày tải lên :
22/12/2013, 18:16
...
Hydraulic systems are classified as either open-center or closed-center. Open-center systems have only
open-center selector valves and closed-center systems only closed-center valves.
Hydraulic ...
flow in a hydraulic system the heart of any hydraulic system can be a hand pump, power-driven pump,
accumulator, or any combination of the three. Finally, a means of converting hydraulic pressure ... components of the hydraulic system,
including the devices which actuate, discharge, and control the flow of hydraulic fluid
and those devices which sense, control, and limit hydraulic pressure....
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Design of hydraulic systems for lift truck
Ngày tải lên :
23/03/2014, 11:37
... three-way
Design of Hydraulic Systems for Lift Trucks 33
Chapter 3
Hydraulic Components
Hydraulic components can be grouped according to their function:
I. Valves
Hydraulic valves are ... Design of Hydraulic Systems for Lift Trucks 9
Pump, variable volume
Pump, pressure compensated
Hydraulic motor, one direction of flow
Hydraulic motor, reversible ...
connectors.
IV. Hydraulic reservoirs
There are two main types of reservoirs- open and closed. The hydraulic
systems for industrial trucks use open type reservoirs.
V. Hydraulic fluid
The...
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Aircraft Hydraulic System Design pptx
Ngày tải lên :
28/03/2014, 10:20
... Single hydraulic system fails
Major: Two (out of 3) hydraulic systems fail
Hazardous: All hydraulic sources fail, except RAT or APU
(US1549 Hudson River A320 – 2009)
Catastrophic: All hydraulic systems ...
Electro-Hydrostatic Actuators (EHA) or local hydraulic
systems, consisting of
•
Miniature, electrically driven, integrated hydraulic power
generation system
•
Hydraulic actuator controlled by electrical input
... Redundancies
•
Two independent hydraulic systems
+ one electric system (backup)
•
Primary hydraulic power supplied by 4
EDP’s per system
•
All primary flight controls have 3 channels
– 2 hydraulic + 1 electric
•
4...
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NONLINEAR PHENOMENA IN HYDRAULIC SYSTEMS
Ngày tải lên :
30/03/2014, 20:21
... isn’t small
enough, the system can’t be considered as second-
orde system.
CONCLUSION
This paper has presented an accurate mathematical
model for valve control hydraulic system with long
pipeline. ... Deutsch
NONLINEAR PHENOMENA IN HYDRAULIC SYSTEMS
Satoru Hayashi
Professor Emeritus, Tohoku University, 981-3202, Sendai, Japan
HZK00631@nifty.ne.jp
ABSTRACT
Hydraulic systems include various non-linearities ... a variety of nonlinear phenomena occur
in the systems. This paper deals with intrinsic
nonlinear dynamic behaviors of hydraulic systems.
KEYWORDS
Hydraulics, Nonlinear phenomena, Hard self-
excitation,...
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Tài liệu Automotive Computer Controlled Systems P2 doc
Ngày tải lên :
19/01/2014, 23:20
... computer controlled system that is commonly
used. Figure 1.22 shows a relatively modern system that uses individual wheel
control for ABS and is known as a four-channel system. The braking system ... 1.25 The electrically- operated throttle used with the traction control system
Fig. 1.26 A traction control system
28 Common technology
Fig. 1.28 The principles of air conditioning
Computer controlled ... and turbocharging
(exhaust system particulate traps also have a beneficial effect).
Figure 1.33 shows a computer controlled diesel engine management system.
The exhaust system is equipped with an...
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Tài liệu Automotive Computer Controlled Systems P1 pptx
Ngày tải lên :
19/01/2014, 23:20
... common
to many of the systems can be used to perform effective diagnosis on a range
of computer controlled systems. Also covered is a range of modern computer
controlled systems, computer technology ...
1.2 Engine-related systems 2
1.3 Ignition systems 2
1.3.1 THE CONSTANT ENERGY IGNITION
SYSTEM 2
1.3.2 DIGITAL (PROGRAMMED) IGNITION
SYSTEM 3
1.3.3 DISTRIBUTORLESS IGNITION SYSTEM 6
1.3.4 OPTOELECTRONIC ... computer controlled vehicle
systems that are in current use and to make an assessment of the technology
involved that is common to a range of systems. It is this knowledge that is ‘common’
to many systems...
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Tài liệu Automotive Computer Controlled Systems doc
Ngày tải lên :
13/02/2014, 09:20
... common
to many of the systems can be used to perform effective diagnosis on a range
of computer controlled systems. Also covered is a range of modern computer
controlled systems, computer technology ... exhaust
system back to the induction system, on the engine side of the throttle valve.
Figure 1.20 shows the principle of an EGR system.
Fig. 1.20 Exhaust gas recirculation system
Ignition systems ... control of a single computer and the resulting system is known as an engine
management system.
1.5 Engine management systems (EMS)
Engine management systems are designed to ensure that the vehicle...
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Automotive Computer Controlled Systems ppt
Ngày tải lên :
14/03/2014, 16:20
...
1.2 Engine-related systems 2
1.3 Ignition systems 2
1.3.1 THE CONSTANT ENERGY IGNITION
SYSTEM 2
1.3.2 DIGITAL (PROGRAMMED) IGNITION
SYSTEM 3
1.3.3 DISTRIBUTORLESS IGNITION SYSTEM 6
1.3.4 OPTOELECTRONIC ... common
to many of the systems can be used to perform effective diagnosis on a range
of computer controlled systems. Also covered is a range of modern computer
controlled systems, computer technology ... computer controlled vehicle
systems that are in current use and to make an assessment of the technology
involved that is common to a range of systems. It is this knowledge that is ‘common’
to many systems...
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Báo cáo khoa học: "Using a Randomised Controlled Clinical Trial to Evaluate an NLG System" doc
Ngày tải lên :
23/03/2014, 19:20
... evaluations of NLG systems against
non-NLG alternatives.
3 STOP and its Clinical Trial
The STOP system has been described elsewhere
(Reiter et al., 1999). Very briefly, the system took
as input ... Appropriate?
When is it appropriate to evaluate an NLG system
with a large-scale task or effectiveness evaluation
which compares the NLG system to a non-NLG al-
ternative? Certainly this should ... is seriously considering using the sys-
tem, indeed customers may refuse to use a system
without such testing.
Controlled task/effectiveness evaluations are
also scientifically important, because...
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controlled synthesis of nanoparticles in microheterogeneous systems
Ngày tải lên :
04/06/2014, 15:18
... organizing this information.
v
Controlled Synthesis of
Nanoparticles in
Microheterogeneous
Systems
Vincenzo Turco Liveri
University of Palermo, Italy
that in bulk systems. Some of these deviations ... microheterogeneous systems, each containing one of the
various reactants. In the case of microheterogeneous systems whose structure is
sensitive to mechanical or electrical stresses or of reactions controlled ... solute
entrapment in such systems will also be given. Taking into account that
reaction rates and mechanisms show distinctive features due to the peculiar
structure of microheterogeneous systems, some information...
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Báo cáo hóa học: " Brain-Computer Interface Controlled Functional Electrical Stimulation System for Ankle Movement" doc
Ngày tải lên :
19/06/2014, 08:20
... EEG-
based BCI system with a noninvasive FES system for the
lower extremities. The schematic diagram of the overall
system is shown in Figure 1A. The proposed system uti-
lizes a contralaterally -controlled ... BCI-FES systems, the integration of BCI with
lower extremity FES systems has received less atten tion.
At the time of this publication, review of the literature
revealed that no actual BCI-FES systems ... stimulation (FES) system that
enables the direct brain control of foot dorsiflexion in able-bodied individuals.
Methods: A noninvasive EEG-based BCI system was integrated with a noninvasive FES system for...
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Báo cáo hóa học: " Research Article Software-Controlled Dynamically Swappable Hardware Design in Partially Reconfigurable Systems" doc
Ngày tải lên :
22/06/2014, 19:20
... wide-acceptance.
3. DYNAMICALLY RECONFIGURABLE SYSTEMS
A dynamically reconfigurable system is a hardware-software
system which is capable of saving and restoring the context
of any system task, as and when required ... software im-
plementation requires an operating system that can manage
both software and hardware tasks. Such an operating system
for reconfigurable systems (OS4RS) is an important infras-
tructure ... Embedded Systems
Volume 2008, Article ID 231940, 11 pages
doi:10.1155/2008/231940
Research Article
Sof tware -Controlled D ynamically Swappable Hardware
Design in Partially Reconfigurable Systems
Chun-Hsian...
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