Apply systems thinking as a methodology to how you intend to investigate and assess your study project (Power Generator Speed Breaker), following, and documenting all the 7 steps to Systems Engineering (SE).

A batter stands at home plate in Yankee Stadium and hits the ball toward the right field foul pole. The pole is 314 ft from home plate. If the baseball leaves the bat at a speed of 100 mph and an angle of 17.5 degrees upward, how high would the right fielders glove have to be to catch the ball before it hits the foul pole. Neglect air drag.

Draw a typical creep curve and show the 1st, 2nd and 3rd Creep zones on them and explain the creep mechanisms that occur in these zones.

Consider an orthogonal machining process carried out on a steel alloy of 600 MPa shear strength, the width of the cut is 10mm. The depth of cut is 0.5 mm and the chip thickness 0.7mm. The cutting speed is 2400 m/sec, the coefficient of friction is 0.364 and the rake angle of the tool is 10 oC. Estimate : a) Material removal rate b) specific power in shear c) specific power in friction

A Parter governor with upper and lower arms (250 mm) equal length, each pivoted at a distance ( 30 mm) from the spindle axis. The ball and dead mass ( 10 & 25 kg) respectively. the friction force (± 10 N). Determine the maximum and minimum speed when the upper arm makes angle equal to (60 deg) with vertical.

Fatigue is a condition which usually causes damage in aircraft structures. The damage of an
aircraft structure could possibly lead to failure.
(a) Discuss how to sustain damage in aircraft structures before an inspection can be done. Provide
appropriate mathematical equations to support your answer

Level 0 from the product structure indicate the subassemblies at the lower level? T OR F

What is the closure problem, which occurs when applying Reynolds-averaging to the Navier-
Stokes equations, and why is it a problem? How does one work around it?

Consider a very long rectangular fin attached to a flat surface such that the temperature at the end of the fin is essentially that of the surrounding air, i.e. 20°С. Its width is 5.0 cm; thickness is 1.0 mm; thermal conductivity is 200 W/m·K; and base temperature is 40°C. The heat transfer coefficient is 20 W/m2 .K. You can use Table 1(a) for assistance. (i) Estimate the fin temperature at a distance of 5.0 cm from the base, and; (ii) Calculate the rate of heat loss from the entire fi

A converging-diverging nozzle is designed to operate with an exit Mach number of 2. The nozzle is supplied from an air reservoir at 600 kPa and temperature is 300 K. The throat area of the nozzle is 5 cm2.
Determine:

(a) The ratio of exit-to-throat area and exit area.
(b) Given the area ratio in part (a), find the range of back pressure over which the nozzle is choked. What is the critical pressure and design pressure?
Also, calculate the mass flow rate when the nozzle is choked and at design conditons.
(c) Determine the mass flow rate for a back pressure of 450 kPa and 500 kPa.
(d) Determine the mass flow rate for a back pressure of 0 kPa.
(e) Plot pressure variation along centerline of nozzle and mark all the points (back pressures) on it.
(f) Use excel sheet to plot mass variation Vs back pressures and mark all points on it.

Interpret typical creep curve and use mathematical analysis to predict creep behaviour

1. Why do surfaces absorb solar radiation differently?

Problem 3 (36 Pts)

The steel pipe is 0.5 m long and has an internal diameter of 60 mm and an external diameter of 80 mm. The Young’s modulus E is 200 GPa and the Poisson ratio ν is 0.32. The pipe experiences a twisting moment of 8 kNm and a bending moment of 3.5 kNm.

4p a) Sketch roughly how the angle of rotation and vertical displacement change as a function of distance from the free end of the pipe to the wall.

8p b) Determine the torsion angle and vertical displacement at the free end of the pipe.

6p c) Determine the stress at the top and bottom of the beam at an arbitrary cross- section, say at a-a.

6p d) Determine (i) the principal stress, (ii) the maximum shear stress, and (iii) average normal stress if available.

4p e) Determine whether plastic deformation occurs. Here, the elastic limit for steel is 250 MPa.

4p f) The base of the rod is fastened to the wall by 4 bolts, 2 vertical and 2 horizontal. Analyze different stresses (in normal stress, shear stress, or both) experienced by different bolts.

4p g) If the bolts are 6 mm in diameter and made of the same steel. With the increase of two moments in proportion, which bolt will yield first and how will the yield look like?