explain with sketches the different types of cams and followers

explain and elaborate the various types of gear trains

Explain the velocity ratio of epicyclic gear trains is obtained by tabular method

What goes in the Polynomial box and the LTI box in the simulink model?

A pair of gears with 25?, full-depth, involute teeth transmits 125 hp while the pinion rotates at 2500 rpm. The diametral pitch is 4, and the quality number is A9. The pinion has 32 teeth and the gear has 76 teeth. The face width is 1.5 in. The input power is from a multicylinder gasoline engine, and the drive is for a low speed water pump. The drive is a commercial enclosed gear unit. Specify suitable materials for the pinion and the gear. Assume a safety factor of SF=1.25, reliability of 0.90 and a design life of 8000 h. After that, determine the power-transmitting capacity for the pair of gears.

IE 672 Research Project

You will be required to research a topic relevant to industrial quality control and summarize this research in a brief report and a presentation to the rest of the class. The following is a sample list of topics:

            Multivariate SPC

            Process Monitoring and Feedback Adjustment

Wald Sequential Sampling (SPRT Method)

Failure Modes Effects Analysis

Fault Tree Analysis

Taguchi Methods

Robust Parameter Design

Continuous Sampling Plans

SPC with correlated data

HACCP (hazard analysis and critical control points)

Process Validation

Quality Function Deployment

Design Controls

In addition to this list you are free to choose a topic on your own. You can get ideas for your topic by reviewing the bibliography at the end of your book.

IMPORTANT:

You are expected to deliver the following:

1. A brief paper clearly explaining the topic that you chose

2. Approximately 3-6 pages

3. An example of an application if possible

4. Simulating data is acceptable

5. A short presentation for a class discussion

Approximately 5-10 slides

Please note that your project is intended to benefit the entire class. So you are expected to provide a presentation to the class; you are also expected to review the presentations of your peers and participate by asking questions.

PLEASE ANSWER THIS QUESTION WITH 3-6 PAGES AND 5-10 PPT SLIDES.

THANK YOU.

Several geothermal power plants are in operation in the united states and more are being built since the heat source of a geothermal plant is hot geothermal water which is “free energy.” An 8-MW geothermal power plant is being considered at a location where geothermal water 160 degrees C is available. Geothermal water is to serve as the heat source for a closed Rankine power cycle with refringent 134a as the working fluid. Specify suitable temperature and pressures for the cycle, and determine the thermal efficiency of the cycle. Justify your selection.

A normal shock wave propagates through stagnant air at 300K and 100kPa with a Mach number of 1.2. What is the post shock flow velocity in the lab frame of reference and the post shock pressure, and temperature? If a shock wave propagated through helium with the same pressure ratio as the air shock wave, what would its Mach number be?

(a) Show that for logarithmic oxidation, the rate of oxide growth dy/dt is inversely proportional to the time for large reaction times. (b) Then show that the oxidation rate approaches 0 for a large reaction time.

An ideal turbofan operates at 11,000m with a free-stream Mach number of 0.85. Considering the following design inputs:

Bypass ratio:?= 8

Fan pressure ratio:?F= 1.6

Compressor pressure ratio:?c= 25

Fuel heating energy:hPR= 43,500kJ/kg

Total temperature downstream of the combustor:Tt4= 1420K

a)Calculate all the points and plot the thermodynamic cycle of the core flow on a T-sdiagram.

b)Calculate specific thrust, specific fuel consumption, thermal efficiency, propulsive efficiency and overall efficiency.

c)Compare the performance parameters in part b)with those of an ideal turbojet with the same ?c, Tt4 and hPR.

A urethane elastomer is selected as an artificial heart valve material. You wish to calculate the maximum theoretical strain (strain endurance limit) the material can withstand forever. This material has a threshold fracture resistance of 50 J/m^2 based upon its crosslink density, its intrinsic flaw size is 50 micron, and its tensile modulus is 1 MPa.

Q4. State whether the following are true or false with a brief explanation (1-2 sentences).

(i) Given a control volume with one inlet and two exits, the two exits must have identical mass flow rates.

(ii) You are given a control volume with one inlet and one exit such that more ‘mechanical energy’ is coming in than going out (‘mechanical energy’ is the sum of enthalpy, kinetic energy and potential energy per unit mass), but are given no information on the work or heat interactions. The total energy (Ecv) within the control volume must increase with time.

(iii) You are given a control volume where the mass is changing with time but the control volume itself has no heat or work interactions with the surroundings. The total energy within this control volume must also change with time.

(iv) For a one-inlet, one-exit control volume at steady state, the volumetric flow rates must be equal at the inlet and the exit.

(v) An open control volume (i.e., with inlets and exits), by definition, always describes the same region and therefore, the specific volume of matter inside cannot change.

A shell and tube type of heat exchanger with one shell pass and two tube passes will be designed to provide the given heat transfer rate Q(kW) to cool hot water by using cold river water . The hot water flows through the shell and the cold water flows through the tubes. The inlet and outlet temperatures of the hot water and the cold water are given as Thi, The and Tci, Tce in degrees Celcius. Design the shell and tube heat exchanger by making necessary assumptions to calculate the dimensions of the heat exchanger. Q= 10 KW Hot Fluid( Water) Thi= 70 Celcius The= 40 Celcius Cold Fluid ( Water) Tci= 5 Celcius Tce= 15 Celcius 1) Assume the tube diameter and tube length . 2) Assume fouling coefficient based on inside and outside tubes, hdi and hdo . 3) Select the material of construction for the tubes to determine the thermal coefficient. 4) Find the Log Mean Temperature Difference (LMTD) . 5) Obtain the Correction Factor F. 6) Calculate the Mean Temperature Difference. 7) Assume the Overall Heat Transfer Coefficient “U” as initial guess according to type of heat exchanger. 8) Calculate the provisional area. 9) Calculate the number of tubes based on the assumed tube diameter, thickness of the pipe and tube length L. 10) Calculate the tube pitch and bundle diameter.

A fuel consists of a mixture of gases the composition of which is CO -20%, C2H2 - 35%, H2 45 % by volume. Determine the stoichiometric air-to-fuel ratio by mass. (10.6)

In a vertical high temperature wall with high prandtl number,write down the governing equation for natural convection outside the wall. Using scale analysis of the governing equations, estimate the ratio of hydrodynamic and thermal boundary layer thickness?