A hollow shaft has to be designed for a marine engine delivering 1200 kW when running at 120 r/min. The maximum allowable shear stress is 50 MPa and the maximum torque to be transmitted by the shaft is 30 % greater than the mean torque. The internal diameter of the shaft is 50 % that of the external diameter. Calculate the shaft dimensions and the angle of twist of the shaft over 3 m when transmitting the above torque (G = 80 GPa).

Q: If the internal torque experienced by a hollow brass shaft (G = 39 GPa) at a section with diameter d...

A:

Q: A shell-and-tube condenser with horizontal 7/8-in BWG 16 copper tubes is used to condense benzene va...

A: Tube diameter D0=78inch P=1 atm Enthalpy of vaporization hl =394 kJ/kg Thermal conductivity at refer...

Q: You are out at your grandparents property where they store rainwater in large tanks for later use. O...

A:

Q: Two blocks of wood 50mm wide and 20mm thick are glued together. a. Using the free body diagram conce...

A: Calculated shear load and from it the shearing stress in the glued joint and also deriving shear str...

Q: An element that has Young's modulus is E=70GPA, the Poisson's ratio is v=0.33 and yield stress Y = 2...

A:

Q: Water flows down an inclined tapered pipe 45 m long at a slope of 1:10. The areas at upper and lower...

A: Water flows down a 45-meter long inclined tapered pipe with a slope of 1:10.The upper and lower ends...

Q: You have 2 shock waves and one expansion wave above the wing. What waves would you have to change or...

A: Lift is a force that directly opposes the weight of an airplane in the air. Lift is generated by eve...

Q: From a solid homogeneous hemisphere of radius r, it is desired to cut out a cone the base of which c...

A: Here the following figure from the given question

Q: A ray of light passes from air into plexiglass (n incident angle of the ray 0; if the angle of the r...

A: Given data Refractive index = 1.495Angle of refracted beam = 28°

Q: A U-tube manometer with one arm open to atmosphere is used to measure the pressure of kerosene vapou...

A: The pressure of kerosene vapour travelling through a pipe is measured using a U-tube manometer with ...

Q: 4 m F = {60i – 30j – 20k}N %3D 3 m X. -7 m- 4 m 6 m- 2 m

A: GIVEN DATA- A FORCE F GIVEN WE HAVE TO FIND MOMENT ABOUT POINT O

Q: force between two charges q1 and q2, separated by a distance d, is 20 mN. e distance between the cha...

A: F=20mN

Q: Q1- Choase the correct answer: 1. Thomas will be late to work, he has a dental appointment. A. but B...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: The flexural stress 250 Mpa is equal :to 250 Gpa 250 N/mm^2 250 Ib/in^2 250 psi Flexural bending cal...

A: GIVEN DATA- MCQ QUESTION GIVEN WE AHVE TO CHOOSE CORRECT OPTION

Q: The shaft ABC shown in the figure is drivenby a motor that delivers 300 kW at a rotational speedof 3...

A: Given: The power, P = 300 kW The speed of shaft, N = 32 Hz The power at gear B, P1 = 120 kW The powe...

Q: A thin-walled steel tube having an ellipticalcross section with constant thickness t (see figure) is...

A: Given Torque, T = 18 k-in.            G = 12 x 106 psi             t = 0.2 in            a = 3.0 in....

Q: A particle which moves with curvilinear motion has coordinates in millimeters which vary with the ti...

A:

Q: 14. The position x(in meters) of a particle moving along a straight line is given by x = 90( 1-e") w...

A:

Q: what horsepower would be developed under a head of 11 meters?

A: To find  Horse power developed under a head of 11 meters.

Q: Cable AB passes over the small ideal pulley C without a change in its tension. What length of cable ...

A:

Q: Aluminum [E= 70 GPa] member ABC supports a load of 28 kN. Determine: (a) the value of load P such ...

A:

Q: m3 of nitrogen contained in a cylinder behind a piston is initially at 1.2 bar and 15°C. The gas is ...

A: Given:Volume of nitrogen, V=0.05 m3initial pressure of nitrogen, P1=1.2 barinitial temperature of ni...

Q: 2016. Two cars A and B have a velocity of 60 mph in the same direction. As 250 ft behind B when the ...

A: GIVEN DATA- V=60mph=88 ft/s DISTANCE BETWEEN A AND B =250ft DEACCELERATION OF CAR B =10 ft/s2  

Q: A small ring Pis threaded on a fixed smooth horizontal rod AB. Three horizontal forces of magnitudes...

A:

Q: A space vehicle has a mass of 500 kg and is moving towards the moon. Calculate the kinetic and poten...

A:

Q: A pitot static tube is used to measure the velocity of air in a duct. The water manometer shows a re...

A:

Q: By using Doolittle's or Cholesky Decomposition method х — у %3D 2 2x – y +z = 4 2х — 2у — z — 3 -

A:

Q: 7.10 A two-dimensional supersonic wing has the profile shown in Figure P7.10. At zero angle of attac...

A:

Q: 7. Compute the internal force of member CD & EF 1000 lb 2000 lb 2000 lb 2000 lb C F 1000 lb D E 30 6...

A:

Q: The angular acceleration of a flywheel decreases uniformly from 8 rad/s2 to 2 rad/s2 in 6 sec at whi...

A:

Q: A motor driving a solid circular steel shaftwith diameter d = 1.5 in. transmits 50 hp to a gear atB....

A: Consider a shaft having radius R is subjected to a twisting moment T. Then, shear stress developed i...

Q: The riveted lap connection shown consists of two(2) – PL 12 mm × 280 mm.  2. If allowable bearing s...

A: Given: The thickness of plate, t = 12 mm The width of plate, b = 280 mm The ultimate strength of pla...

Q: Iny x" = 4y+1 13. What is the value of x in the system of equations Inx =y+ 10] A) 11.21

A:

Q: The L-shaped rod AOCD has an 80 kg mass hanging from it at B. The rod is leaning against a smooth wa...

A:

Q: A stepped shaft of solid circular cross sections(see figure) has length L = 0.80 m, diameterd2 = 40 ...

A: Given  Diameter, d1 = 1.0 in.                  d2 = 1.2 in.       Length, L = 45 in.                ...

Q: 29. Gamma radiation is bombarding an iron plate as shown in the figure. A con- vection boundary cond...

A: Given: "Since you have asked multiple questions, we will solve the first question for you. If you ...

Q: 1. Steadily flowing streams of steam, A and B meet and mix, then flow in a steady state in a pipe C,...

A: GivenPA=55barTA=643oK=370oCmA=99.208 lb/s=45kg/sPB=5500kPa=55barmB=160kg/sVc=1.64042 ft/s =0.5m/s

Q: Q.2 Determine the resultant moment of the forces shown about point O as shown in figure 2.

A:

Q: 2. The piston in the figure below has a downward velocity of 4.6 m/s. The lengths OC and BC are 0.21...

A: Since we only answer up to 3 subparts so we will answer the first 3. Please resubmit the question by...

Q: Given is a triangular shape that has a hole in it of radius ? = 15 ??. The triangular shape is 10 cm...

A:

Q: Electronic components inside a CPU are cooled using a fan through which air enters at 293 K at press...

A: Write the given data. P1=100 kPaT1=293 Kv1=0v2=1.30 m/sT3=305 K

Q: Write the shear and moment equations (not simplified and simplified) at each segment of the beam sho...

A:

Q: A conical pipe having end diameters 100 mm and 150 mmis used to supply oil. Find discharge through p...

A: Given that, d1=100 mm=0.1 m d2=150 mm=0.15 m, V1=5 m/s

Q: 8.18 Two planes AB and BC in an elastic material under load are inclined at 45° to each other. The l...

A:

Q: The conditions at the beginning of compression in an Otto engine operating on hot-air standard with ...

A:

Q: A hollow steel [E= 30,000 ksi] tube (1) with an outside diameter of 2.75 in. and a wall thickness of...

A:

Q: t K P (KPa) Y (%) h (KJ/kg) | U (KJ/kg) | S (KJ/kgK) Vx103 State m/kg 380 2013.2 353 70 300 859.6 61...

A: (1): At saturation pressure→P1=380 KPa: temperature→t1=141.7°C=414.85 K →hf=597.41 KJKg, hfg=2138.24...

Q: Determine the kinematic viscosity of cyclohexene at 50°C in m2/s

A:

Q: Two inaccessible points A and B on the ground lie on the east-west line. From point C, accessible to...

A:

Q: The displacement of a particle is given by s = 5t3 - 70t2 + 105t - 57 where s is in feet and tis in ...

A:

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.