Engineering Mechanics One is one of the basic courses for Civil Engineers. This course involves a lot of Mechanical analysis of Structures, objects and Force systems. However, this course is impossible to undertake for students unless the students know how to deal with the units and other basic values are calculated in. Therefore in the first chapter of Engineering Mechanics One, the students are taught the Conversions of Units. Units are the basics calculation. A system of forces cannot be interpreted unless there is homogeneity of units. A very simple example can be used to explain this concept. Imagine a force of twenty kips and twenty Newton acting on the same direction, we know the two forces will add up however we do not know what the value will be since the two forces do not have the same base units. It cannot be said the summation of the two forces will add up to forty, even if the value was forty, the unit of this force will be unknown. Therefore, to solve this example, homogeneity of units is required and this can be either obtained by either converting the twenty kips into Newton or by changing the twenty Newton force to kip force or by converting both forces to some other form of force. If the twenty kip force is transferred to Newton force, then the final answer will be in Newton and if the twenty Newton force is converted to kip force, then the final value of force will be in kip or both forces can be transferred into a new type of force where the final value will be in the new type of force. To transfer a force, a factor is needed to convert kip force into Newton force or vice versa which is a unit converter. The unit converter that transfers kip force into Newton force is 138.2 Newton per kip and the unit converter that transfers Newton force to kip force is 0.00723 kip per Newton. Using these converters, we have the final force in the direction of the force as 20.14 kip in terms of kip force or 2784 Newton in terms of Newton force. Therefore, it...

...International Journal of Advanced Engineering Research and Studies
E-ISSN2249–8974
Research Paper
DESIGN AND ANALYSIS OF CRANKSHAFT FOR SINGLE
CYLINDER 4-STROKE DEISEL ENGINE
Jaimin Brahmbhatt1, Prof. Abhishek choubey2
1
Address for Correspondence
P G student, 2 Assistant professor, Department of Mechanical Engineering, Oriental Institute Of science and
technology, Bhopal, India
ABSTRACT
Crankshaft is one of the critical components for the effective and precise working of the internal combustion engine. In this
paper a dynamic simulation is conducted on a crankshaft from a single cylinder 4- stroke diesel engine. A three-dimension
model of diesel engine crankshaft is created using SOLID WORKS software. Finite element analysis (FEA) is performed to
obtain the variation of stress magnitude at critical locations of crankshaft. Simulation inputs are taken from the engine
specification chart. The dynamic analysis is done using FEA Software ANSYS which resulted in the load spectrum applied
to crank pin bearing. This load is applied to the FE model in ANSYS, and boundary conditions are applied according to the
engine mounting conditions. The analysis is done for finding critical location in crankshaft. Stress variation over the engine
cycle and the effect of torsion and bending load in the analysis are investigated. Von-mises stress is calculated using
theoretically and FEA software ANSYS. The relationship between the...

...ASSIGNMENT 2: ROBOTS
In this report I will write in detail about the uses and operations of industrial robots, flexible manufacturing systems, productivity loading and unloading systems and coordinated work schedules. I will show the benefits and disadvantages of the above and evaluate the consequences of such practices.
First of all robots have many applications such as: assembling products, handle dangerous material, spray finishes on, inspect parts/produce/livestock and cut/polish products. Robots are also used to do tasks that are too dull, dirty, or dangerous for humans. Industrial robots used in manufacturing lines used to be the most common form of robots, but that has recently been replaced by consumer robots cleaning floors and mowing lawns. The advantages of Industrial Robots are:
• Quality - Robots have the capacity to drastically improve product quality when compared to humans. Applications are performed with precision and mass repeatability every time. This level of consistency can be hard to achieve any other way.
• Production - With robots speeds increase, which directly increases the rate of production. Because robots have the ability to work at a constant speed without pausing for breaks, sleep, holidays, they have the potential to produce more than a human worker.
• Safety - Robots increase workplace safety as they’re less likely to cause accidents. Workers are moved to other roles, so they no longer have to perform dangerous applications in...

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111
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111
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3.25
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Engineering
Computer...

...are connected by a large spike. If a force P = 120 N is required on the handle of each crowbar to loosen the spike, calculate the corresponding tension T in the spike. Also find the value of b which will eliminate any tendency to bend the spike. State any assumptions which you make.
Ans. T = 1560 N, b = 53.8 mm
Two light pulleys are fastened together and form an integraL unit. They are prevented from turning about their bearing at O by a cable wound securely around the smaller pulley and fastened to point A. Calculate the magnitude R of the force supported by the bearing O for the applied 2-kN load.
Ans. R = 4.38 kN
Figure P.S.1.9
Figure P.S.1.10
Figure P.S.1.11
Figure P.S.1.12
A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 400 N and a small 80-N spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 76 N, the scale A reads 268 N. What are his correct weight and mass m?
Ans. W= 648 N, m= 66.1 kN
The exercise machine consists of a lightweight cart which is mounted on small rollers so that it is free to move along the inclined ramp. Two cables are attached to the cart – one for each hand. If the hands are together so that the cables are parallel and if each cable lies essentially in a vertical plane, determine the force P which each hand must exert on its cable in order to maintain an...

...1. Using diagrams and/or graphs, explain the following terms:
a. Pressure Head
pressure head [′presh·ər ‚hed]
(fluid mechanics)
Also known as head.
The height of a column of fluid necessary to develop a specific pressure.
The pressure of water at a given point in a pipe arising from the pressure in it.
b. Total Discharge Head
Total discharge head refers to the actual physical difference in height between the liquid level in the pit and the highest point of the discharge pipe or water level in the outlet.
c. NPSH
Net Positive Suction Head (NPSH). The measurement of liquid pressure at the pump end of the suction system, including the design of the pump.
d. Suction Lift
Pump Performance Curve
The pump characteristic is normally described graphically by the manufacturer as a pump performance curve. The pump curve describes the relation between flow rate and head for the actual pump. Other important information for proper pump selection is also included – efficiency curves, NPSHr curve, pump curves for several impeller diameters and different speeds, and power consumption.
Increasing the impeller diameter or speed increases the head and flow rate capacity - and the pump curve moves upwards.
The head capacity can be increased by connecting two or more pumps in series, or the flow rate capacity can be increased by connecting two or more
e. Pump Efficiency
Pump Efficiency
The term pump efficiency is used on all types of pumps to describe the ratio of...

...Faculty of Engineering and Technology (FET)
PPH 0125 Mechanics Foundation in Engineering
ONLINE NOTES
Chapter 1 Physical Quantities
Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, Bukit Beruang, 75450 Melaka, Malaysia.
PPH0125
MECHANICS
Contents 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Introduction to SI Units. Basic Quantities Derived Quantities Conversion of Units Scalar and Vector Quantity Factor of ten Simplification (Standard Prefixes) Dimension: Homogeneity of Physical Equations. Vectors. Component of a vector. Vector addition and Subtraction. Graphical Methods. Component Methods. Dot Product and Cross Product.
Mind Map
OBJECTIVES
__________________________________________________________________________________ FET 2013/14 PHYSICAL QUANTITIES 1/ 18
PPH0125
MECHANICS
Upon completion of this chapter, you should be able to: 1) 2) 3) 4) 5) 6) list the base quantities and their SI units. use common standard prefixes explain the advantage of and apply dimensional analysis and unit analysis. distinguish between scalars and vectors. Add and subtract vectors graphically and by the component method. determine the dot and cross products of given vectors.
1.0
INTRODUCTION TO SI UNITS
A physical property that can be measured is called a physical quantity. The most commonly encountered physical quantities are...