Gear Box Faults

Gearbox is one of the most important components in an automobile, enabling power transmission from the engine to the wheels. Gears and bearings are prone to failure. The impending caseof failure can be predicted by performing vibration analysis of a gear box, usually done by acquiring data in lab conditions. Objective: This paper proposes an idea to enable fault detection in the gearbox by acquiring data under on road conditions without having to remove the gearbox, thereby simplifying the condition monitoring of a gearbox

An Analytical Approach for Situational Behavioral Pattern in MSN

The past decade has witnessed the emergence and progress of multimedia social networks (MSNs), which have explosively and tremendously increased to penetrate every corner of our lives, leisure and work. Moreover, mobile Internet and mobile terminals enable users to access to MSNs at anytime, anywhere, on behalf of any identity, including role and group. Therefore, the interaction behaviors between users and MSNs are becoming more comprehensive and  omplicated. This paper primarily extended and enriched the situation analytics framework for the specific social domain, named as SocialSitu, and further proposed a novel algorithm for users' intention serialization analysis based on classic Generalized Sequential Pattern (GSP). We leveraged the huge volume of user behaviors records to explore the frequent sequence mode that is necessary to predict user intention. Our experiment selected two general kinds of intentions: playing and sharing of multimedia, which are the most common in MSNs, based on the intention serialization algorithm under different minimum support threshold (Min_Support).By using the users' microscopic behaviors analysis on intentions, we found that the optimal behavior patterns of each user under the Min_Support, and a user's behavior patterns are different due to his/her identity variations in a large volume of sessions data

H6-type Igbt Configuration for Single Phase Grid Connected Transformerless Photovoltaic Applications

All active switches is presented for a proposed high-efficiency photovoltaic inverter, no isolated, grid connected photovoltaic applications. The proposed H6-type configuration features high efficiency over a wide load range, low ground leakage current, no need for split capacitors, and low-output ac-current distortion. The detailed SPWM scheme, photovoltaic power supply and the power stage of operating principle are described. In this paper not only IGBT, but also MOSFET switch inverter topology explained. The proposed H6 type transformerless inverter topology can be able to reduce strong ground leakage current. The single phase IGBT H6-type transformerless grid connected PV system is simulated using MATLAB/SIMULINK

Improving the Reliability of Three Phase Inverter Base on Cuk Converter for Pv Application

This paper present three phase inverter base on the cuk converter. The prime foredeal of this proposed theory is energy storage element like as inductors and capacitors can be reduced in order to reforms the system reliability and reduced total size alike total cost of system. The uncommon characteristics of cuk converter, when required ac voltage is depress or greater than dc side voltage but this quality is not found in conventional Current source inverter as well as voltage source inverter. Traditional method required any mathematical model but the fuzzy controller does not require any mathematical model and it's very simple to implement. The cuk converter is simulated for grid and their output voltage is settling at desired voltage. The performance of cuk converter simulated by using MATLAB/SIMULINK and contrast study is performed

Review Paper On Evaporative Cooling System

Air-conditioningsystemisan essential role of ensuring occupants thermal comfort. Review the recent developments concerning evaporative cooling technologies that could potentially providetosufficient cooling comfort,Then thereducetheenvironmental impact and lower energy consumption.[1]Evaporative cooling is an energy efficient and environmentally friendly air conditioning technology. Direct evaporative cooling systems technology whichis involvesadiabatic humidification and cooling of air with supplementary heat exchange facilities tothelower final air temperature and try to reduce therelative humidity. This concept is enhanced in all engineering fields due to its characteristics of zero pollution, energy efficiency, simplicity and good indoor air quality. This cooling effect has been used to the various scalesusefrom small space coolingsystem tothelarge industrial applications

Design and Implementation of Single Phase Inverter

Now a days due to industrialization, there is gap between demand and supply, therefore the need of electricity is increased and we use the electricity efficiently. We cannot store the electricity in AC form, so we store the energy in battery in the form of DC and then it converts into AC using inverter. In that project, we are design and implement the inverter bridge on single phase full and half bridge inverter with R and RL load In that project the PWM method can be used for the generation of the waveforms