Abstract

In paper the fundamental question about optimal interaction between the controlling stimuli generated by the active (powered) and the passive (unpowered) drives of the robotic systems have been studied. A mathematical statement of the problem has been proposed that is suitable to study this question for the semi-passively actuated n-degree-of-freedom robotic systems. The problem is formulated as an optimal control problem for n-degree-of-freedom mechanical system models a semi-passively actuated robot. We take into account the inter ....etc

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Electroactive Polymer (EAP) Actuators


Electroactive Polymer Technology

Electroactive polymers (EAP) are promising as actuators in intelligent material
systems, where large deformations are required. Electromagnetic, piezoelectric
or shape memory alloy actuators are either too heavy, too complex or too slow
for such applications. EAP however are relatively lightweight, rather simple and
fast enough.
In particular, dielectric electroactive polymers were shown to have good ove ....etc

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An actuator is a component of machines that is responsible for moving or controlling a mechanism or system.

An actuator requires a control signal and source of energy. The control signal is relatively low energy and may be electric voltage or current, pneumatic or hydraulic pressure, or even human power. The supplied main energy source may be electric current, hydraulic fluid pressure, or pneumatic pressure. When the control signal is received, the actuator responds by converting the energy into mechanical motion.

An actuator is the mecha ....etc

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to get binformation about the topics3d sensors to allow interact with computers without touch refer the page link bellow

http://seminarsprojects.net/Thread-sensors-to-allow-interact-with-computers-without-touch

http://seminarsprojects.net/Thread-3d-sensors-to-allow-interact-with-computers-without-touch ....etc

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Hydraulic actuators: cylinders



Properties:

.The cylinders have to be good quality steel with close tolerances.
There have to be good sealing both at the piston rod and at the cylinder.

.With time dirt may come in and damage the surfaces. This has to be possibly reduced.
In this case, the leakage will increase all the time.

Calculation of cylinders

1 Stick-slip
2 Transition
3 Normal behaviour

Hydraulic cylinders should be possibly operated in the 3rd region for ....etc

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ppt of street lightning based on sensors using plc and scada

Abstract

The man developed many more application for its convenience and luxury. All things change with technology. Man-made machines are going to be automotive to make it more efficient & to save electric power. In city areas, street lights are powered by the administrations & are controlled by man-made apparatus operated automatically. This is very common that street lights are Off in the daytime or sometimes at night due to unavailability of duty men. So this system was developed ....etc

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i need the ppt of miniature sensors and actuators of nanotechnology with mathematical,computer,electronical and mechanical component ....etc

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To get full information or details of latest trends in pneumatic actuators please have a look on the pages

http://seminarsprojects.net/Thread-sensors-and-actuator-system-of-special-hyper-redundant-robot?pid=29423&mode=threaded

if you again feel trouble on latest trends in pneumatic actuators please reply in that page and ask specific fields in latest trends in pneumatic actuators ....etc

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Please visit the below given thread for more details

http://seminarsprojects.net/Thread-piezoelectric-actuator ....etc

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Since 1945 Parker Autoclave Engineers has designed and built premium quality valves, fittings and tubing. Parker Autoclave Engineers ball valve actuators can be supplied with a variety of features and options. Operators are supplied either pneumatic or electric actuated.
FEATURES
Use for remote and automatic operation.

Air-to-open/spring-to-close and air to open and close.

Limit switches or limit switches with visual indicators available.

High temperature options.

Stainless steel housings for corrosive applications.

Manual ove ....etc

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