Instructions for setting the ENGINEERING MECHANICS paper R - 2012-13 (revised) The following points about the paper pattern for setting the paper of engineering mechanics R2012-13 (revised) has been discussed and finalized in the core committee meeting of engineering mechanics held at University of Mumbai dated 30-08-2012, 1.00pm. 1. For center of gravity chapter: No integration method to be taught and subsequently no question is to be asked in question paper. Secondly no odd shape problem to be asked for finding out the CG. No question on CG of rod. 2. While selecting questions for including in a question paper care should taken that 4 marks question should be solved in nine minutes and 6 marks question should be solved 13 minutes. (One marks = 2.25 minutes since we are giving 3 hrs for 80 marks paper). 3. You must follow strictly the topic wise distribution as per the blue print. For eg. Topic 1.1 for 4 marks and it should appear in Q1a, topic 2.1 for 4 marks and it should appear in Q1b and similarly all other questions (reference syllabus R2012-13). 4. You have to submit 3 sets for R 2012(Revised) and 3 sets for R2007-08(old) separately with signature of the concerned faculty. 5. Soft of the same sets is to be mailed to the mail id which will given by university in due course of time. 6. Soft copy should in word...

...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...

...CONFIDENTIAL
s't
ry ,b
t:.,Wj
UNIVERSITI TUN HUSSEIN ONN MALAYSIA
FINAL EXAMINATION
SEMESTER II
SESSION 2012t20t3
COTIRSE NAME
FLUID MECHANICS
COURSE CODE
BNQ 10303
PROGRAMME
I BNN
EXAMINATON DATE
JUNE 20I3
DURATION
3 HOURS
INSTRUCTION
ANSWERALL QUESTIONS
CONFIDENTIAL
BNQIO3O3 FLUID MECHANICS
Ql. (a)
Define pressure head, velocity head, and elevation head for a flurd stream alld
express them for a fluid stream whose pressure is p, velocity is V, and elevation
is z.
(6 ma*s)
(b)
Outline three (3) major assumptions used in the dedvation of the Bemoulli
equation.
(6 marks)
(c)
A pressurized tank of water has a 10 cm diameter orifice at the boftom, where
water discharges to the atmosphere. The water level is 2.5 m above the outlet.
The rank air pressure above the water level is 250 kpa (absolute) while the
atmospheric pressure is 100 kpa. Neglecting frictional effects, determine rhe
initial discharge rate ofwater from the tank. Refer to FIGURE
(c).
el
Q2.
(a)
(13 ma*s)
Explain why liquids are usually transported in circular pipes.
(3 marks)
(b)
Briefly describe ihr significance ofReynolds nurnber. Refer to FIGURE
e2 (b).
How is it defined for:
(D flow in circular pipe of inner diameter D
(iD flow in a rectangular duct ofcross section a x b
(7 marks)
(c)
Refer to
IGURE Q2 (c), Water at l5"C (p:999.1 kg/m3 and p = 1.138 x l0-3
kg/ms) is flowing steadily in a 30 m long and 5 cm diameter horiiontal pipe...

...BPH – Tut # 2
Fluid Mechanics – University of Technology, Sydney – Engineering & IT
Tutorial # 2 – Questions and Solutions
Q.1
For the situation shown, calculate the water level d inside the inverted container, given the manometer
reading h = 0.7 m, and depth L = 12 m.
Q.2 (from Street, Watters, and Vennard)
The weight density γ = ρg of water in the ocean may be calculated from the empirical relation γ = γo +
K(h1/2), in which h is the depth below the ocean surface, K a constant, and γo weight density at the
ocean surface. Derive an expression for the pressure at any depth h in terms of γo, h and K. Calculate
the weight density and pressure at a depth of 3.22 km, assuming γo = 10 kN/m3, h in meters, and K =
7.08 N/m7/2. Calculate the force on a surface area of 2 m2 (of a submarine, for example).
Question 3
The sketch shows a sectional view through a submarine. Atmospheric pressure is 101 kPa, and sea
water density is 1020 kg/m3. Determine the depth of submergence y.
1
BPH – Tut # 2
Question 4
In the dry adiabatic model of the atmosphere, in addition to the ideal gas equation, air is also assumed
to obey the equation
p/ρn = constant
where n = 1.4. If the conditions at sea level are standard (101.3 kPa, 15°C), determine the pressure and
temperature at an altitude of 4000 m above sea level.
Solutions.
Q.1
For the situation shown, calculate the water level d inside...

...Types
of
Engineering
Offered
Biomedical
Engineering
Chemical
Engineering
Computer
Engineering
Computer
Science
Electrical
Engineering
Mechanical
Engineering
Systems
Science
&
Engineering
CHE
111
Pre-‐Engineering
Course
CS
111
Requirements
ENG
101
or
certification
of
proficiency
(Students
must
also
fullfill
all
of
Wabash's
graduation
requirements,
including
major,
minor,
and
distribution,
except
for
the
34
course
credits)
Minimum
G.P.A.
(Overall
and
required
pre-‐engineering
courses)
Admissions
Deadline
Financial
Aid
Additional
Notes
MAT
111
(or
010/110),
112,
223,
224,
225
PHY
111,
112
Minimum
of
60
semester
hours
of
transferable
credit
(C+
or
better)
Add'l
courses
for
engineering
specialty
3.25
Columbia
University
Purdue
University
Applied
Mathematics
or
Applied
Physics
Biomedical
Engineering
Chemical
Engineering
Civil
Engineering
Computer...

...MEM23061A Test Mechanical Engineering Materials
Lab 5. TORSION TESTING: Finding G
Like Bending, Torsion is an important type of loading that can produce critical stresses in engineering applications. Under torsion, SHEAR stresses are produced. The stiffness under shear stress is called the MODULUS OF RIGIDITY G.(MPa) It is also called Shear Modulus.
In this laboratory, we will determine the Modulus of Rigidity of the metal rod, and verify that the angle of deflection corresponds to what we would predict from equations. You must do your working in Excel.
1. Prepare a report, describing the purpose of the experiment, the equipment and setup used and the results obtained.
2. Using the following equations, calculate the shear strain and shear stress for each increment. Tabulate the stress and strain values.
Rod Diameter = .................... +/- .................. mm
Load (kg) > Weight (N) > radius > Torque (Nm)
Angle of twist > radians. (To convert degrees to radians: Radians = Degrees * /180
Shear Stress & Shear Strain (These are needed for you graph)
3. Using the vertical axis for shear stress and horizontal axis for shear strain, plot stress -strain diagram.
4. Determine the shear modulus (G) from the slope of the straight line.
5. Compare your result with the published value of the shear modulus. Calculate the % error using the error analysis rules. Make sure you include all the possible sources of...

...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...