ABSTRACT
This paper focused on the development of capacitor voltage
balancing methods in a flying capacitor multilevel inverter
(FCMLI) fed induction motor drive. For improving the
performance of flying capacitor multilevel inverter, a switching
pattern selection scheme is implemented. The proposed method
has been designed a seven-level flying capacitor multilevel
inverter by using sinusoidal pulse width modulation technique.
The selected pattern has been exposed to give superior
performance in load voltage, total harmonics dist ....etc

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SYSTEM ANALYSIS
2.1 DEFINATION OF PROBLEM
EXISTING SYSTEM
In the existing System, the data existing is all the databases is consolidated manually, and the report is generated from the data of each database and the data is taken in to Excel Work Sheet and consolidated and finally the data is loaded into Oracle database manually by an operator.
PROPOSED SYSTEM
This System Extracts data from different databases using uniform interface/procedure and then transforms the extracted data into destination databas ....etc

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MAGNETORHEOLOGICAL FLUID DAMPER
1.INTRODUCTION
Vibration isolators or dampers are commonly used to mitigate vibrations in structures or machines. The isolators are typically passive and they are designed to reduce the vibration of the most undesired frequency. However, in many applications, the excitation frequency varies across a large range. In a semi-active device, the stiffness or damping can be adjusted during operation. Changing the stiffness of the support device can be exploited by moving the eigenfrequency of t ....etc

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AIM:
To synchronize and operate the two electric sources in parallel with bus bar arrangement and draw the performance characteristic curves.
NAME PLATE DETAILS:
3 alternator DC shunt motor 3 Load
FUSE RATING:
125% of rated current (full load current)
For DC shunt motor:
For ac alternator
PRECAUTIONS:
(1) The motor field rheostat should be in minimum resistance position.
(2) The Alternator field Potential divider should be at minimum voltage position.
(3) Initially all ....etc

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for the techinical ppt i want fpga based sine pwm waveform for solar inverter
[email protected] dis my id plz send ppt ....etc

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Over the last decade, particle tracking microrheology has matured as a new tool for complex fluids research. The main advantages of microrheology over traditional macroscopic rheometry are: the required sample size is extremely small ( 1 mL); local viscoelastic properties in a sample can be probed with high spatial resolution ( 1-10 mm); and the sample is not disturbed by moving rheometer parts. I will present two examples of recent work in my group that highlight how these characteristics can be exploited to acquire unique information about t ....etc

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Evaluation of Active Damping for Reduction of Noise, Vibration and
Motion of Ground Vehicles
The off-road vehicles are subject to large vibrations which can have severe affects on drivers, crew and load.Most ground vehicles are equipped with passive spring and damping devices which have reached a high
level of sophistication.active damping, has reached production stage for luxury vehicles, trucks and trains.

Studies by Karnopp for automotive applications suggest that the efficiency of semi-active dampers is only marginally low ....etc

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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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P V Ramaiah J. and G Krishnaiah2
I Department of Mechanical Engineering, Srikalahasteeswara Institute of Technology, Andhra Pradesh, India 2Department of Mechanical Engineering, SV University College of Engineering, Andhra Pradesh, India
The manuscript was received on 15 June 2006 and was accepted after revision for publication on 30 May 2007. DOl: 1O.1243/09544062JMES411


abstract

The paper deals with modelling and design of a friction damper. This has been done in four phases. In the first pha ....etc

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Although grinding is considered one of the more established manufacturing processes, it is still relatively poorly understood. In particular, the interaction of the wheel with the workpiece at times seems more like an art than a science. In this presentation, a 3-D topographic measurement approach which encompasses both the wheel and the workpiece will be presented. The topographic information obtained from the wheel will be applied to a model to predict the workpiece surface generated which will then be verified by experimentation. The prelimi ....etc

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