Mechanical Engineering Questions and Answers June 19, 2021

Given that if 0.55mA and i 0.13mA, what is io in the figure io R if

2, k 0 If x(k) 1, k 1,2 lo, elsewhere And if the digital convolution Find the impulse response h (k). h(k)0, for n 0 y(k) MERCEGO 1, k0 k 1 k 2 k 3 5, k 4 k 5 k 6 0, k 7

Discuss the phenomenon of secondary flows in fluid mechanics, particularly in open-channel flows. What causes the development of secondary flows, and how do they influence the overall flow patterns and sediment transport? Explore the challenges in predicting and modeling secondary flows, and suggest engineering approaches to mitigate their effects

Explore the concept of laminar-turbulent transition in boundary layers. What factors influence this transition, and how does it impact the drag characteristics of a surface? Provide insights into the challenges of predicting and controlling the laminar-turbulent transition in engineering applications, and discuss techniques employed to delay or

Discuss the concept of boundary layer separation in fluid mechanics. How does it occur, and what are the consequences for drag forces on immersed bodies? Provide insights into the factors influencing boundary layer separation, and propose engineering strategies to delay or prevent separation for improved aerodynamic performance.

Examine the concept of boundary layer separation in aerodynamics. How does it impact the lift and drag forces on an airfoil, and what aerodynamic design considerations are employed to control or manipulate boundary layer separation?

What is the importance of heat transfer ?

Consider the CE amplifier circuit of Figure 1. 1c) 1d) le) 1f) Vi CB 100 SINE (0 5m 1K 0 0 0 5) .tran 5m RB 10K RC 4.7K CC HH 100 Q2 2N2222 CE 100 1m vo RL 1Meg Figure 1 CE Amplifier circuit A V 10 10 20 points Draw the AC circuit and perform incremental analysis to calculate the expression for the gain A Show work. 1 10 points Simulate the

The rated operating voltage and current of a permanent magnet DC motor are 48V and 2 amperes, respectively. Its nominal speed is 1400 rpm. The motor's friction losses are 0.0385 Nm, and it has an efficiency of 90%. Accordingly, calculate the motor's: a) back electromotive force (Ke), and b) armature resistance (R).

A crystal is tilted so that only one row of diffractions is excited, and Kikuchi lines appear as shown in Fig. 7.47. Obtain formulas for the value of s for the diffrac tions 2g and 2g. Assume that the Ewald sphere is flat. Fig. 7.47 Problem 7.2 0 deficit 5.0 2g excess g5

One way of handling large flat sheets of material, without physically contacting the material, is to use aerodynamic levitation. In industry, a pressurized air source is connected to a large disc, with a hole drilled in the centre of the disc. The disc (with air coming out of the hole) is then brought near a flat surface, and the aerodynamics of

Initial conditions of air entering a centrifugal compressor are 1 bar and 15C static. The power input to the compressor is 440 kW. The total pressure at exit is 5.1 bar. The velocity of air at inlet is 140 ms and the speed of the compressor is 19000 rpm. The hub diameter is 13 cm. Assume isentropic efficiency 0.79 and slip factor 0.95. Calculate

When 25 kg is pushed across a frictionless horizontal floor with a force of200N directed30below the horizontal,the magnitude of the normal force of the floor on the crate is: 180N 350N 68N 25N

ASSIGNMENT 1 The bar shown has a mass of 5 kg and the radius of gyration about the c.g. is 0.235 m. Find the natural period of oscillation. fot stiffness 520 Nm mass 3kg 380mm 520mm pivot

1. For a certain ship steering system represented by the block diagram shown below, Y(s) is the ships course, R(S) is the desired course, and A(s) is the rudder angle. Find the transfer function Y(s)R(s) R(s) K H(s) G(s) Hy(s) A(s) G(s) Y(s)

A rotating solid shaft is made of colddrawn steel. The material properties of the shaft is S 500MPa, Sy400MPa, a fully corrected endurance limit of Se200MPa, and a fatigue stressconcentration factor Kris 1.44. If the load line slope r0.6, use the diagram below to a) Draw the Yield (Langer) line, Modified Goodman line, and the load line. b)

For the condenser, determine the mass flow rate of the cooling water, in kgs. Take T 546C, T4 75C, T5 23C, and T6 43C, and a mass flow of 122 kgs. For the turbine, determine the rate of entropy production, in kWK. Take T 543C, T4 66C, T5 28C, and T6 43C, and a mass flow of 115 kgs. For the pump, determine the rate of entropy production, in

Determine the diameter of the rivet which is to be used to join two bracket plates as shown in Fig. 4, to sustain the load of 50 kN. Take maximum permissible shear stress 80 MPa and C 100 mm, e 400 mm. kotot Calen You C nane a dono tocat e totivasy to Fig. 4.000 P

A flow perfusion bioreactor is being used to provide shear flow to mesenchymal stem cells seeded into a cylindrical polylactic acid scaffold. The scaffold has a radius of 15 mm, a porosity of 65, and an average pore diameter of 307.9 um. If a volumetric flow rate of 12 mm3s is applied and the dynamic viscosity of the perfusion media is 6.9 x 104

At the instant shown, perform the following tasks using the individual values of lengths OA, AB, BC, OE, CE, L, H, angle , angular velocity wOA, mass mBD, and moment of inertia JBD. Length of the walking beam BD is equal to 2BC. Distance CG from point C to the centre of mass of the walking beam is equal to BC 5. How would I be able to calculate

What is viscosity and how temperature change affect it in fluids?

(a) Write the equation of motion of machine represented by spring and dashpot attached in parallel to the mass when the base is excited by yYSinot and the response of the machine is x(t). (b) Define and explain the static and dynamic coupling in reference to the two degree undamped vibratory system. (c) When do we get complex Eigen value problem

Differentiate between linear element and quadratic element. Derive the stiffness and force for two dimensional triangular elements.,Consider the thin (steel) 200 mm long tapered plate varying width from 40 mm to 5 mm along the length. Plate is fixed at the top. The plate has uniform thickness t 1 mm, Youngs modulus E 200 x 10 Pa, and weight

Estimate the number of PV Panels required to be conected together in order to design a solar system with following requirements Power 10kW, Voltage Peak Power 200V. The PV modules available for this plant are havig followign parametrs, Vm 35V, Im 8A. Recalculate the numbers. After calculation of number of PV modules, estimate actual peak

A battery is charged through a single phase half wave controlled converter. The supply voltage is 230 V, 50 Hz and battery emf is constant at 160 V. Find the value of average charging current for firing angle of 30 degrees. Internal resistance of battery is 2 Omega

Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period. n (a) xn ei) (b) xn cos (1) 2 COS (1) 4 . (c) xn cos() sin() 2 cos (1) 4 8

(a) Draw the Equivalent model for 2DOF vibratory system having FixedFree boundary conditions at its ends, and the mass m, m2m and stiffness k, k2k. Determine the natural frequencies and the mode shape for the given system. (b) List the methods for prediction of natural frequency of multi degree freedom system Discuss Raleighs quotient method to

Differentiate between linear element and quadratic element. Derive the stiffness and force for two dimensional triangular elements.

A 500mmlong, 16mmdiameter rod made of a homogenous, isotropic material is observed to increase in length by 300 m, and to decrease in diameter by 2.4 m when subjected to an axial 12kN load. Determine the modulus of elasticity and Poissons ratio of the material. L 500 mm d 16 mm 8, 300 m 12 kN

The vertical and horizontal two forces are applied as shown to the gears mounted to the solid shaft AB. Knowing that the yield stress of the shaft is 210 MPa and the factor of safety is 2, determine the smallest permissible diameter of the solid shaft AB using maximum distortion energy theory. 150 mm 350 mm F 5 kN 75 mm 50 mm B F. 75 KN G 250 mm

A massspring system subjected to an oscillating forcing function described by F(t) 2.3 cos 8.5t. The effective mass and spring stiffness are 1.5 kg and 57 Nm respectively. Determine the steadystate solution.

Rigid vessel is divided into two parts A and B by means of frictionless, perfectly conducting piston. Initially, part A contains 0.4 m of air (ideal gas) at 10 bar pressure and part B contains 0.4 m of wet steam at 10 bar. Heat is now added to both parts until all the water in part B is evaporated. At this condition the pressure in part B is 15

In an Epicyclic gear train shown in figure below, the internal wheels A, F and the compound wheel C, D rotate about the axis O. The wheels B and E rotate on a pin fixed to the arm L. The wheels have same pitch and the number of teeth on B and E are 18, C 28, D 26. If the arm L makes 150rpm clockwise, find the speed of when (1) wheel A is fixed

Describe accurately as possible the aim of this lab experiment and summarize the main finding from your own lab experiment. How can this experiment be improved? Will classify the forced convection as internal or external ? Characteristics of the experiment: Cross section of the Duct =0.015m2 Flat surface area =0.0225m2 Generator Power =200W

Preliminary Question Describe accurately as possible the aim of this lab experiment and summarize the main finding from your own lab experiment. How can this experiment be improved Will classify the forced convection as internal or external Characteristics of the experiment Cross section of the Duct 0.015 m Flat surface area 0.0225 m Generator

A 3.5- in . diameter bar of SAE 1020 steel is to be turned to a 3- in . diameter in one cut, using cutting fluid. A feed of 0.028in.rev /will provide a satisfactory surface finish and a tool life of 145 minutes is desired. Determine the cutting speed ( in rpm ) that will accomplish the cut if 14-4-1 HSS tool is to be used. what is the recommended

A heat exchanger facility is designed to use type J thermocouple to sense an outlet temperature. A safety device is installed to shut down the low heating system when the gas temperature reaches 773 K. During because of oxidation. By mistake, a type N thermocouple is installed as the replacement. What may be the result of such an installation

A back or backing weld is a type of:__ aGroove weld bResistance weld cArc and gas weld dUpset weld

find from velocity distribution for laminar flow in pipe given below a-the centerline velocity b-the average velocity c-the volume flow rate in terms of head loss and pipe diameter d-the friction factor as function of reynolds number

u(r) R2 dp 4u dx (1

in Finite element methods determine the B matrix determine plane stress matrix determine plane strain matrix determine stiffness matrix k write the boundary condition for this system

4 A mass spring damper system is subjected to a sinusoidal force represented by theF(t) 180 cos(wt). The system has a mass of 85 kg, a spring stiffness of 6250 Nm and a damping constant of 415 Nsm. Determine the steady state solution for x(t) when the driving frequency, w5.2 rads

Derive the general solution for displacementin terms of spring stiffness k and mass m of a mass spring system which is subjected to forcing function described by f(t) 3t2 1.5t2e(t)3 Derive the general solution for displacementin terms of spring stiffness k and mass m of a mass spring system which is subjected to forcing function described by

1.)Dynamic equation of motion This equation have to included that F, a, general V equation. 2.) We need to Laplace transform equation, transfer function, steadystate equation related to Dynamic equation of motions.,Fcmd(s) Electric motor G Rotational direction 0(s) Force sensor F(s) Environment (Des K)

A decreasing current ratio indicates: A.A stable liquidity B.An increasing liquidity C.A strained liquidity D.Satisfactory current solvency

Use modal analysis to find the steadystate displacement of each mass when F 0 for two degree of freedom system shown in Figure Jun 7.210 rads(X)1 0.490) W radsX W1 W 1 11.410 radsX0.740 m K www x (1) Figure where m 4kgm2kgk k 0.5 kNmk3 k4 1 kNm The natural frequencies and corresponding mode shapes are F(t) www m x (1) F(t) 4t and F

Determine the forces acting on the ground and the torque, T12, to maintain static equilibrium for the fourbar linkage shown in the figure below (a) (b) De 3 A B 2 C 4 P 210 T12 04 B 3 RAO2 RDO4 7 in, and RO04 2 in. P 105.1 240 A 3.5 in, RBA RBO4 6 in, RC04 2 02 T12 4 in, 152.4

These weld symbols have no arrow-side or other-side significance: aProjection or seam weld bBack or backing weld cSurface or groove weld dFlash and upset weld

Represent approximately the pressing behavior of clay in a graphic with abscissa indicating pressure, and ordinate representing % pressed density. The curve should nearly obey %d=f(P) =KP^(n)(n~~0.4) function. The highest density was obtained for 75%(0.75) pressed density (empty volume) for 69 Mpa,%63 pressed density at 7MPa in 100cm^(3) empty

Consider a 2- ply lamination with all plies at 45 degrees and both layers have the same hardness Q as below Let's assume you have the matrix: [ Q ] = [130 2.5 2.5 10 0 ] 0 0 3.5 ( a ). Calculate matrices A , B and D for 2- layer lamination ( b ). The applied load is Nx =100 kN /

2 mm 2 mm 45 45 2

Figure shows five different spherical objects with different drag effect. Identify the sequence of drag coefficient, Cp for these spherical objects (from highest Cp to lowest Cp) when the flow passed through the object at Re 1 and Re 104. Explain the reason of your sequence. V D D V 06 D B V D

Calculate the forces in members AB, BG, and GF. 45 B 4 m 60 G C 4 m F 8 kN 60 D 4 m 45

The no-wind takeoff distance for a turbojet airplane, at sea level on a standard day, is 3,905 ft with a takeoff velocity of 130 kt. If the same airplane departs an airport with a tailwind component of 10 kt, assuming all other conditions are the same, what is the new minimum takeoff distance required?

Calculate the new stall speed ( V s2 ) of an airplane when the V s1 is 43kts, and the airplane is experiencing a bank angle of 68 during a level altitude, banked turn. 70kts 94kts 65kts 59 kts

An electric motor has a rotor with a mass moment of inertia of 21 ftlbs2. What torque is required to accelerate it from rest to 1,167 rpm in 7.5 seconds Provide your answer in lbft and round to the nearest whole number. Crate A is moved 17 ft to the right by the forces shown in the figure. Force y is 84 lb and force z is 49 lb. Force z is 13

A rocket with a specific impulse of 400 s and initial mass of 100 kg is traveling in deep space (i.e., neglect gravity and drag). The thrust is a function of time given by the following expression: where t is time in seconds. Show any necessary calculations and/or provide justification for answer where appropriate. 1. Draw a free body diagram,

Our company wants to start manufacturing gallon milk containers and caps out of LDPE polyethylene, with a 67,500 psi elastic modulus. Milk density is 8.61 Lb/gallon, so we want to be able to restrain 10 pounds of force with our cap. First, assume the bottle itself will not flex. The cap will be for a 1.25 inch diameter outer diameter of the jug

Determine the magnitude, direction and sense of the resultant and equilibrant forces acting on the above component and the perpendicular distance of their line of action from the point A.

1 m 0.5 m 9kN 7kN 30 0.5 m 1m 4kN 45 6kN

helium liquefier operating according to the flow diagram shown in the Fig. below receives highpressure helium vapor, liquefies a fraction of the vapor, and returns the remainder to be recycled. The following operating conditions prevail Point 1 (vapor entering warm side of heat exchanger), T 15 K, h 78.3 kJkg, w 5 gs, P 2000 kPa Point 5 (vapor

You are attempting to turn on the blackout marker lights for travel in a night convoy under blackout conditions. You push the Blackout Lights switch to the center position, but find that the normal marker lights are still on, and the blackout markers are off. Which of the following actions have you omitted? Turn on the Dash Light Dimmer switch

After driving your MK23 through soft, off-road terrain, you are returning to a primary road. What should you do to adjust the CTIS for on-road travel. Select all that apply. Change the CTIS cargo selection to 7.1-15 Tons On Road Only. Push each CTIS terrain selection in sequence to check CTIS operation. Change the CTIS terrain selection to HWY.

3). The compression chamber BC of the truss ABC in Fig. 2 is a square solid steel bar with 45 mm x 45 mm cross section. The tension member AB is a solid steel rod that has a circular cross section with diameter d. Let Est 200 GPa and Gyp 250 MPa. Assuming BC is an Euler Column, (a) draw a free boy diagram of the truss in Fig. 1. (b) Determine

If you are holding an aluminum alloy part in a vice with mild steel jaws and the vice has a 400:1 mechanical advantage between the handle and the jaws and then apply 50 lbs to the handle to tighten the vice on the part, the maximum force that can be applied to the part parallel to the jaws before slipping occurs is most nearly? (in lbs) a.12,000

Q2. For the shaft of a gearbox, 2D views for which are shown in fig. 2, find the internal forces and moments in the shaft at the mating region for gear C for the three locations specified below. Both gears are to be assembled from the right end of the shaft due to sensor requirements and retained axially using retaining rings. Brg. A (Roller

The heat pump cycle shown in Fig. P6.53 operates at steady state and provides energy by heat transfer at a rate of 15 kW to maintain a dwelling at 22C when the outside temperature is 22C. The manufacturer claims that the power input required for this operating condition is 3.2 kW. Applying energy and entropy rate balances evaluate this claim.

The cantilever beam has three distinct regions of distributed forces, as shown in the Figure. 1. Find the magnitude and direction (up or down) of the resultant force for each of the three distributedforce regions. 2. Locate the lineofaction of each of these three resultant forces (i.c., find the x coordinate location with respect to the point A).

At the instant shown (Figure Determine the rigid body at point D, V, move vertically downwards with 4 ms. a. the type of motion of member AB, CD, BDE and EF b. the velocity of point B, Vs, velocity of point E, V, angular velocity of member AB, WAB and angular velocity of member CD, wcp c. velocity of point F, V, and the angular velocity of member

a disc OA and a rod CD is linked by a connecting rod AB. The disc is pinned at O and the rod CD is pinned at C. At the instant shown, the disc is rotating with an angular velocity, won 5 rads. Determine a. The velocity of point A, VA, point B, V, and point D, VD, b. The angular velocity of rod CD, Wep and connecting rod AB, WAB Given OA0.5 m,

Based on Figure Q1 (a), rod AB rotates clockwise with WAB 5 rads, determine the following 1. 11. Velocity at B Velocity at C B AB BC 0.25 m CD 0.5 m G Figure Q1 ( 30

a) Discuss whether the system should be controllable or not. Check your intuition by forming the controllability matrix and checking its rank. b) Assume that all of the state variables can be measured directly that is, x is measured. Find a state feedback law that places the dominant closedloop poles of the system so that t 0.1 sec and M 5. Place

A 4speed AT for a FWD vehicle is shown in the stick diagram. The clutch engagement schedule is shown in the table. The first gear ratio and the overdrive gear ratio are designed to be 2.96 and 0.68 respectively. The chain ratio and the final drive ratio are 1.0 and 3.11 respectively. 3 a) Determine the planetary train parameters B., B. and B. for

A ceramic has a fracture toughness of Kic1.5 MPam. Its strength is controlled by random semicircular flaws of radius a distributed over the surface. The modeI stressintensity factors for these flaws is given by K, 0.50, where o is the stress in the ceramic. The fracture strength of the ceramic is controlled by these surface flaws it follows a

(2) The data below is given as input values for a waterflood in a horizontal, linear reservoir. Relative permeability data in this reservoir are given as kr krw.max kyo Kyo,max Fluid and Formation Parameters Porosity, Absolute permeability, k Crosssection area, A Length of formation, L Injection rate, qt Injection time, t Viscosity of water, Uw

Determine the stored strain energy in the beam shown in the figure below. Neglect the effect of transverse shear forces. Note that the total length of the beam is L. 12

The below figures show a simple computer chip package, such as a diode. Fine wires connect the silicon die to metallic leads that are soldered to a circuit board. The entire unit is encapsulated in a polymeric compound such as epoxy. During operation, as electricity flows through the silicon unit, heat is generated throughout the package. The

You are driving your MK23 through extreme off-road terrain and want to travel in 3rd gear. How do you ensure the Gen IV transmission does not automatically advance to a higher gear range? Use the arrow buttons to set the left-hand display digit to 3. Press the Mode button when the transmission shifts to 3 to lock in the gear range. Select EMER on

Find the state space representation of the following system. You will first have to model the system in the s-domain, similar to the work you did in Module 3. Show all work. Show all work. All MATLAB commands used must be provided.

. K1 f(t) m 4 kg m 1 kg k 6 Nm k 5 Nm C 1 Nsm C 3 Nsm C3 2 Nsm Y m K2 C1 Y m 3 C C3

In machining, there is an optimum cutting speed for minimum cost per cut because... a. higher cutting speeds result in fewer parts per tool b. slower cutting speeds result in higher costs due to the cost of the machine tool time c. lower cutting speeds result in longer tool changing time d. all of the above e. a and b only f. b and c only g. none

A BWR core operates at 7.0 MPa and generates 5000 MWt. Core dimensions and parameters are Number of rids: 70000, rod lengths: 4.5 m, rod outer clad diameter: 1.14, inlet flow velocity: 8 m/s, lattice pitch: 1.24 cm, and inlet temperature: 275 C. Assume a sinusoidal axial power distribution: Assuming a constant heat flux condition: a. Find the

Find the angular acceleration of the rotational thinring, slender rod assembly. The 100 kg thin ring is firmly affixed to the 100 kg slender rod so they rotate as a single body. F 100N a, w

A 10,000 lb airplane flying at sea level has a liftdrag relation given by Cp 0.02 0.05 CL2. It is equipped with a jet engine delivering 3000 lbs of thrust independent of flight speed. If the wing planform area is 200 ft, a) Determine the maximum and minimum speeds by an analytical method. b) Does the minimum speed seem theoretically possible c)

7. The state of Oklatexachussets has two major political parties The Rabbit Party Currently the Duck Party controls the state legislature, and it is time to draw new legislative districts. You are the redistricting manager for the Duck Party. There are 15 counties in the state, as described below. County Rabbit Voters Duck Voters A B C D E F G

The beam shown is loaded with w 400 lbft and L 8ft. Note that x 0 is defined at A and you should leave it that way. It has a Tshaped cross section and point K is labeled. WL 2 L2 y L B M L2 K 2 in. 2 in. 2 in. 2 in. 6 in. a) Determine the Second Moment of Area, I b) Determine the equations of shear and moment as functions of x. Clearly note

As an engineer for an implant design company, the FDA contacts you because it is receiving reports that your companys pin implant is failing in patients, a less than ideal situation. Your pin is used to stabilize a fracture of the fifth metatarsal and the FDA would like to work with you to identify the problem. After analyzing how the adhesive for

Qualitatively explain why an enclosure with lots of glass windows (like a greenhouse or parked car can get much hotter than its surrounding environment during the daytime.

CO2 gas is highly absorbing of radiation in the wavelength band of 1015 m. Given that the average surface temperature of the earth is approximately 15C, explain how a small increase in the atmospheric concentration of CO could lead to significant effects on the climate. I Absorption () 100 50 100 50 100 50 0 0.1 mirr 1.0 10.0 Wavelength (microns)

Most thermal imaging cameras have special coatings on their lenses that are transmissive to radiation in the 8 - 14 m wavelength range, but are reflective to all other wavelengths. Explain why this is done.

Steel column AB is fixed at B and the constraint at A prevents motion in the xy plane. If E = 200 GPa and a factor of safety 2 is desired,(a) Determine the design load P of the beam (b) Show the first mode of bucking (deformed shape) in the column at the critical bucking load Pcr

10 www. 10 m

Consider melting of a one-dimensional slab of ice due to a temperature of 10 C imposed on one end of the ice. Assuming standard properties of water, please (a) calculate and plot the location of the melting front as a function of time, up to 1 minute. a.determine the length of ice melted in 1 minute. b. determine how much does the imposed

Design and build a circuit to achieve A +, A-, Pressing PB1 momentarily will start a single cycle only if the selector switch is NOT ON. If the selector switch is ON, the cycle will not start if the PB1 is pressed. A control relay must be used in this circuit.

How the gas behaves across the fluidized bed, when the velocity is more than minimum fluidization? a) Bubbles formation b) Slugs formation c) Smooth flow d)None of the mentioned

When the temperature of air leaving the intercooler, in a two-stage compression with intercooler, is the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling. a) equal to b) less than c) more than

Ashby plot for materials index of (E2p), suitable for a Beam of minimum weight and prescribed stiffness. On the Log E versus Log p graph, slide the materials index line of slope 2 upwards to optimize the stiffness to weight for a beam. The solid (i.e., nongreyed out) materials above the materials index line are suitable candidates for a beam

The two rods AB and BC in Figure are connected by a pin joint. They are at rest on a frictionless table when an impulsive force F is applied to point C. Calculate the angular velocities of the two rods immediately after the impulse.

b) m, L B. 120 m, L

A student performed a toreic-n test in a lab on a bar of length L with a circular eroeaeectien. If the bar we made of a brittle material, what would be the orientation of the fracture plane relative to the axis of the bar? What would it be if the bar were made of a ductile material?

In graphic form, explain the elements that distinguish a mediocre or good engineering designer from an excellent engineering designer. Draw, sketch, or glue anything that illustrates these differences. You can annotate your drawing with explanatory notes if necessary. This work should be based on your actual experiences during GNG1503 and may

Consider the double A-arm suspension systems in Figure 15.65. Given the desired location of the roll center, graphically construct the rest of the linkage. Note: There are multiple solutions to this problem and for both parts.

a) b) 118 118

Use the energy method to determine the equations of motion and the natural frequencies of the systems shown in the following figures k www 30 111 m,Assume the mass of the torsional bar k,k2,is negligible. k ww k ww R A B b ww ww

A small business jet aircraft is flying at a true air speed of 428 knots in ISA conditions at an altitude of 18050 feet. Propulsion for this aircraft is provided by two small turbofan engines each of which, at this flight operating condition, has a core mass flow of 5.1 kgs, a bypass ratio of 3.3, fan pressure ratio of 1.57 and a fan polytropic

Only about 20% of the combustion energy makes it to the wheels. The rest of the energy either heats the engine or is rejected through the tail pipe. Research how much heat will need to be dissipated and cite your sources. Assume the car is optimized for a 90 degF day driving at an average highway speed of 55 mph. Pick a cross flow heat exchanger

(a) Consider the following unityfeedback system shown in the below figure, where 1 G(s) (s1)(s4)(s10) 10 8 0.6 0.8 40 Imaginary Axis (seconds) 24 6 23 1 s315s54s40 0.4 0.2 R(s) K G(s) Y(s) Point K P A 17.04 2.25 B 39.55 2.191.64i 10 8 4 A2 C 77.82 1.962.61i D 150.1 1.613.68i E 310.11.045.10i F 770 7.35i 0.8 0.6 0.4 0.2 10 12 10 8 6 4 2 0

The triangular wedge shown in Figure 2 resides in air moving at M 3. Making the assump tions that (1) the flow separates at the corners, with the streamlines trailing downstream of the corners deflected toward the base at an angle of 15 degrees from the horizontal and (2) the base pressure PB is the arithmetic average between the pressure