Research Papers/Topics in Mechanical Engineering

Design and costruction of bicycle ergometer

CHAPTER ONEINTRODUCTION1.1 BACKGROUND OF THE STUDY: trolling body weight, reducing the chances of heart diseases, reducing the risk of diabetes and some other chronic diseases by improving the functions of the heart, lungs and improving the biomechanical system of the body. Aside surgeryand medication, several methods have been proposed for the prevention and treatment of heart conditions. One of such methods is the use of regulated and supervised exercise as therapy both for prevention of he...

DESIGN OF 2TONNES AUTOMATED HYDRAULIC JACK

ABSTRACTThe design of 2 tones automated hydraulic jack was carried out using the basic principles of machine design and analysis. The hydraulic jack was designed with a 204watts wiper motor with the output lever having a torque of 30Nm.  The effective diameters of ram and plunger pistons were found to be 12mm and 6mm respectively, when the load lifted was 2000N with mechanical advantage being 3.4. The working stress was 21MPa when the effort applied at the handle by the lever w...

SUSTAINABLE E-LEARNING FOR NIGERIAN EDUCATIONAL DEVELOPMENT

ABSTRACTAs Nigeria aims at optimizing the implementation of the E-learning programme in tertiary institutions, this paper discusses the ways by which the implemented E-learning can be sustained. The discussion was carried out using data derived from students, teaching staff and telecommunication engineers in Nigeria using Owerri metropolis as a case study. Data analysis was carried out and analyzed using excel and Minitab. Conclusions and recommendations were drawn for effective imp...

DEVELOPMENT OF A SOLAR POWERED CAR

ABSTRACT: This project work is on the development of a solar powered car. It involves the design and fabrication of a solar powered car with a carrying capacity of two and a maximum speed of 30 km/hr, which runs entirely on a stand-alone solar system. The car is a unique prototype sedan car. It is designed with dimensions of 3 meters’ x 1.6 meters'. The maximum load carrying capacity of the vehicle is 700 kg and it requires a driving force of about 4.3 kW. The solar car uses a clean engine ...

Maintenance, supervision and inspection at a water treatment plant.

Clean and potable water is one of the basic infrastructures any responsible government needs to provide for its people.I was part of a team of competent engineers that carried out inspection, repair and maintenance of facilities at a water treatment plant.This is a paper work for different maintenance and supervision activities carried out at the water treatment plant. I employed my engineering skills in inspection, maintenance and supervision of the machines, making sure tha...

A TERM PAPER ON DIRECT ENERGY CONVERTING DEVICES AND SYSTEMS

Fossil fuels (coal, fuel oil and natural gas) still meet the major part of our energy demand and are getting fast depleted. Moreover, there are serious pollution hazards like greenhouse effect and global warming which occur due to fossil fuel burning. The use of nuclear power too has its own problems and nuclear fusion is yet to be realized in practice. We have thus been forced to look for non-conventional power generation systems so as to reduce fossil fuel consumption by increasing the conv...

A HYBRID HISTOGRAM IN-MOTION MAPPING MODEL FOR AUTONOMOUS MOBILE ROBOT NAVIGATION AND OBSTACLE AVOIDANCE

In this paper, the simplicity of the convectional Histogram in-motion mapping for obstacle avoidance technique which is now modified and modeled to Hybrid histogram in-motion mapping (HHIM) for autonomous mobile robot navigation and obstacle avoidance was primarily developed by AKWARA UCHENNA C. to solve robot navigation problems for completely unknown environment particularly for a static wave concave shaped obstacle. The developed model is to address the problem associated with a static wav...

VELOCITY HEAT CONDUCTIVITY (VHC) MODEL FOR TWO AUTONOMOUS MOBILE ROBOTS IN ENERGY WORKSPACE

In this paper, the research study on velocity heat conductivity (VHC) model for two autonomous mobile robots in energy workspace is adopted. The model is applied to solve and address; the conversion of heat energy conductivity into kinetic (internal) energy conductivity of the robots, to obtain the velocity energy placement and to derive a velocity heat conductivity mathematical model for algorithm simulation drive using specific heat capacity and thermal diffusivity response in energy worksp...

A Virtual Force Vibration Concept for four Resonances Autonomous Mobile Robot Navigation

In this paper, the research on virtual force vibration concept for four resonance autonomous mobile robots navigation is welcome. This concept is adopted and applied to solve and address; the behaviour of four autonomous mobile robots without initial force of vibration, the amplitude frequency of the vibrating medium, the effect of inapplicable resonance, the wavelength of vibration and the vibrating amplitude length of the four mobile robots. Robot 1 is set into motion at an ampli...

A VIRTUAL THERMODYNAMIC TEMPERATURE CONCEPT IN 2D OBSTACLE ENVIRONMENT FOR AUTONOMOUS MOBILE ROBOT

 In this paper, the virtual thermodynamic temperature concept (VTTC) proposed for 2D obstacle environment for autonomous mobile robot is welcome. The concept emphasis on the heat transfer and temperature measurement of an obstacle and robot workspace with reference to the virtual target concept (VTC) for Lengthy, Concave and Wave concave shaped obstacle. This method is used to address the heat transfer (internal) and the temperature incremental area that occur in 2D workspace for autonomous ...

A TERMPAPER ON STRESS CONCENTRATION

TABLE OF CONTENTStress Concentration -Causes-Prevention-Examples-Determination of the Maximum Stress at the Crack Tip Stress Concentration Factor-Determination of Stress Concentration Factor -Stress Concentration factor for cracks-Stress Concentration factor CalculationsTypes of Loading

A TERMPAPER ON TYPES, AND DESIGN OF BRAKES

TABLE OF CONTENT Introduction Brake System Types of Brake System Applications of Brake System Performance Parameters of Brake System INTRODUCTIONA brake is a device which inhibits motion. Its opposite component is a clutch. The rest of this article is dedicated to various types of vehicular brakes.Most commonly brakes use friction to convert kinetic energy into heat, though other methods of energy conversion may be employed. For exa...

A TERMPAPER ON TYPES, SELECTION AND DESIGN OF BEARING

TABLE OF CONTENTDefinition of  BearingVarious types of Bearing and FeaturesClassification of bearingUses of types of bearingCriteria for bearing selectioDEFINITION OF BEARINGA bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as well as by the directions of applied loads they can handle.

Secondary treatment of pm

Machining:  Sintered parts do have some porosity and it is, therefore, necessary to differentiate their machining behaviour from those of fully dense wrought products. The major differences are, as follows: (i) when a porous metal is machined, the depth of work hardening is more important than for the wrought metal, as in case of former, pores create stress concentration. (ii) The temperature at the tool end causes oxidation of the ...

Students Industrial Work Experience Scheme in Nigeria Railway Corporation Enugu.

ABSTRACTThe report beamed at relying the student intense knowledge and skill acquired during my industrial training attachment of the Nigeria Railway Corporation  Enugu.  it is a well articulated report that gives a comprehensive hand-or-the job report of the student and each chapters from machine shop, smith, foundry and the react gives an indepth. coverage of the corporation work nature. TABLE OF CONTENTSTitle pageDedication Acknowledgment Abstract CHAPTER...


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