Research Papers/Topics in Mechanical Engineering

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 amplitude freque...

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 CONTENT Stress 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 Calculations Types 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 INTRODUCTION A 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 example regenerative braking converts much of the energy to e...

A TERMPAPER ON TYPES, SELECTION AND DESIGN OF BEARING

TABLE OF CONTENT Definition of  Bearing Various types of Bearing and Features Classification of bearing Uses of types of bearing Criteria for bearing selectio DEFINITION OF BEARING A 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.

Students Industrial Work Experience Scheme in Nigeria Railway Corporation Enugu.

ABSTRACT The 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 ONE (MACHINE WORKSHOP...

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 pore surface. (iii) The surface porosity enhances tool vibra...

PLANT MAINTENANCE AND SERVICES

INTRODUCTION Planned maintenance apart from programming inspection, should include monitoring, logging, periodic checks and tests of system as to guarantee correct day-today hitch free functioning and control of “closed circuit” water systems to maintain trouble-free operations.This first requirement for any maintenance system planned or otherwise is to compile an inventory of all plants and equipment to be maintained. Besides, additional information must be readily obtained from the manu...

Design and Performance Evaluation of an Ice Block Making Machine

ABSTRACT The ambient temperature of tropical countries like Nigeria is as high as 40oC during the dry season. This ultimately gives rise to increase in demand for ice which is used to reduce the temperature of water, soft-drinks as well as other uses. This increase in demand for ice block makes the design and construction of a machine which can be used for the production of ice within a short period of time in order to save energy and time imperative and a worthwhile venture. This paper prese...

DESIGN AND FABRICATION OF A MECHANISM FOR OPENING AND CLOSING OF HIGH WINDOW OF A CHURCH

ABSTRACT The technical report presented below is based on the design of mechanism that can be used to open and shut the windows of mechanical engineering workshop from ground level .this mechanism was designed in order to improve safety and convince in their workshop .in the report, the design analysis were made and materials were selected based on operating conditions of each component. The material of the tilt and turn mechanism is cast iron while the material of the lever (handle) is stain...

Main Features of Pump and Pumping Systems

INTRODUCTION This section briefly describes the main features of pumps and pumping systems.  What are pumps and pumping systems? Pumping systems account for nearly 20% of the world’s electrical energy demand and range from 25-50% of the energy usage in certain industrial plant operations (US DOE, 2004). Pumps have two main purposes: 1. Transfer of liquid from one place to another place (e.g. water from an underground aquifer into a water storage tank) 2. Circulate liquid around a system ...

MACHINE COMPONENT DESIGN

DEFINITION OF A KEY  A key is a piece of steel in inserted between the shaft and a hub of the pulley or the gear, mainly to that power. Key are always inserted parallet to the shaft axis. They are need as temporally fastening and are subjected to considerable cursing and shearing stresses.  A key - way in a slut or recess in the shaft and hub of a pulley to accommodate a key.  KEYS A key is a machine member employed at the interface of a pair of mating male and female circular cross-secti...

Technical report on the fabrication of a fan blade

ABSTRACT In recent times, most of the household appliances are using electric power and as such, electricity shortage has become a major problem throughout the world. Ceiling fan is one of such appliances that consume electric power. The best way to minimize the power consumption of the ceiling fan is to reduce the weight of the ceiling fan blade. Thus, this project work entails the design of a new ceiling fan blade in which case the weight and power consumption was compared to the Panasonic ...

Advanced Fine Finishing Process

ABSTRACT This technology is so helpful in our everyday life. This paper dealt extensively about the latest technology which is useful for finishing materials with a very high precision. These latest processes are known as Advanced Fine Finishing Processes. In this paper, we gave a thorough insight into some of these processes. With the demand of stringent technological and functional requirements of the parts from micro- to nano-meter range, evolution of ultra-precision finishing processes ...

Thermodynamic Principle Of Energy Conversion

ABSTRACTEnergy conversion engineering (or heat-power engineering, as it was called prior to the Second World War), has been one of the central themes in the development of the engineering profession. It is concerned with the transformation of energy from sources such as fossil and nuclear fuels and the sun into conveniently used forms such as electrical energy, rotational and propulsive energy, and heating and cooling. A multitude of choices and challenges face the modern energy conversioneng...


166 - 180 Of 182 Results