Friction is extremely difficult to control. If excessively regulated, leads to exhaustive wear, while if loosely regulated, leads to ineffective maneuvers. As a mechanical engineer, you are to design a web handling device meant to transport the flexible films for monitor screens. Elaborate with the support of suitable diagrams the phenomena of wear that you should keep in consideration when designing the web handling device, and the sub- components associated with it. In your elaboration, at least provide three types of available wear in that web handling device to justify their differences

Discuss the sensitivity of modulus to shear correction factor and span to depth ratio in a short beam shear and flexure lab

Water at 0.15 MPa if the water is 0.25% between liquid and vapor what is the specific volume, Energy, Enthalpy and Entropy?

A large Factory space has an average occupancy of 45 people (only male workers in this space) they are doing light bench work. The average light level is 1.5W/ft² of recessed, vented to return air fluorescent fixtures. Other production equipment create a total heat gain of 3 W/ft². Compute the total sensible and total latent heat gain for the space. The floor area is 7500 ft². For the sensible heat gain, estimate the radiative and convective portions for each type of heat gain (in the unit of Btu/hr).

If a tank with water level H springs a small leak at the bottom, what will be the flow velocity?

1. Crude oil flows through an uphill section of the Keystone pipeline at a rate of 2.94 m3 /s (equivalent to 1.6 million barrels of day). The average elevation gain in the section of pipeline is 10 m per kilometer. The pipe diameter is 1.2m. The maximum allowable pressure in the pipe (at the inlet) is 8.27 MPa; the minimum pressure (at the exit) required is 3.45kPa. The crude oil has density 930kg/m3 and a dynamic viscosity of 1.68×10-2 Pa.s. For above condition consider the surface roughness factor is 0.26 mm. Determine the maximum possible distance between pumping station with and without elevation gain. Use Haaland equation for friction factor.

A beam of light hits a 2.36cm thick silicate glass plate at an angle of 64 degrees (as measured from the normal to the surface of the glass). If the coefficient of linear absorption is 0.019 cm-1 and the index of refraction is 1.417, what fraction of light is passed through the plate. The answer should have three decimals of accuracy.

You Answered: .867 Correct Answer 0.888 You will need to calculate the actual distance the light travels in the plate, do not just use the thickness. Don't forget to include Snell's law as needed.

how did they get 0.88

Find the length of a 0.5 in. schedule 40 pipe required to heat water from 60 deg. f to 160 deg. f using condended steam at 260 deg f given water flowing at 600 lb/min.

1.

A common difference between proscenia and masking is …

Develop a computer program or spread sheet to calculate, for a given day and location, the hourly-changed total solar radiation onto a southeast-facing vertical wall and a flat-roof where solar panels are located. The day and location are user-defined. Show your results for May 21 in Newark, NJ.

Assume you have a subsystem with a failure rate of .00002 failures/hour. At least one such subsystem must work for the system to be functional. You can use up to 2 such subsystems (either 1 or 2) in a network:

List and Sketch 3 types (options) of networks that could be used to arrange such subsystems FROM THE WORST to the BEST Reliability

Network Option 1: WORST Reliability Case (Name and Sketch Below)

Network Option 2: Intermediate Reliability Case (Name and Sketch Below)

Network Option 3: Intermediate Reliability Case (Name and Sketch Below)

Network Option 4: BEST Reliability Case (Name and Sketch Below)

Please answer this question fully.

The Different types of Networks are: Series, Parallel, Series-Parallel, Parallel Series, K-Out-of-M, and Standby

A small quantity of n-octane is placed in a wide test tube at 20 degrees C and two capillaries are inserted vertically and immersed to the same depth. The radii of the capillaries are unknown but are of the order of 0.1 and 0.01 mm. Air is blown through each capillary in turn and the pressure necessary to just produce a slow stream of bubbles is recorded on a manometer filled with water. Show that the surface tension of each test liquid may be expressed as K(h1 – h2) where h1 and h2 are the two manometer readings and K is a constant for the apparatus.

I need a two pages summary of the book ( Theory And Design For Mechanical Measurements, 6th Edition) for the chapters from one to chapter seven. The book also contain an introduction and summary for every single chapter which helps but these summaries have to be paraphrased and the most important these chapters have to be interconnected- how these chapters are connected to each others?

1. A load of 25,000 N is applied on a part of radius 15 mm, what is the shear stress,??

Hint, shear stress = load/cross sectional area.

(up to 10 points)

2. If the maximum shear stress,?, is 250MPa and the applied load is 40,000 N what must the area be to ensure it is a safe design?

Hint, load/shear stress = area.

(up to 10 points)

3. A rivet of radius 5 mm has a shear stress maximum of 170 MPa. What force can it withstand before failure?

Hint Shear stress x area = load.

(up to 5 points)

4. If a fuselage has a diameter of 4 m and material thickness of 1 mm, how will its ability to resist shear stress be compared against a fuselage of 8 m with the same thickness?

Hint, think about the ratio of thickness to diameter.

(up to 10 points)

Exercise 6.5 Compute the stresses in laminate coordinates at top and bottom of each lamina in Example 6.1 (p. 178) when the laminate is subjected to ?0x = 765(10?6) mm/mm, ?0y = ?280(10?6) mm/mm, ?xy = 34.2(10?6)1/mm and all remaining strains and curvatures equal to zero.

Note: this is Example 6.1 Compute the coefficients in the plate stiffness equations (6.9) for a two- lamina laminate with ?1 = 55?, ?2 = ?55?, t1 = t2 = 0.635 mm

with material properties given E1 = 19.981 GPa, ?12 = 0.274, E2 = 11.389 GPa, G12 = G13 = 3.789 GP a [172]. assume the out-of-plane shear modulus G23 ?= Gm = 0.385 GP a.