What safety precautions we need to take in the Powder Metallurgy lab? Please specify and explain
In: Mechanical Engineering
In: Mechanical Engineering
Matlab assignment.
The objectives of this project are (1) to introduce the students to scripting applied to solution of mechanical engineering problems and (2) to create a Matlab script that allows the computation of principal stresses and strains starting from a generic state of stress and that automates the drawing of 3D Mohr circles
Assignment
1) Read from input a stress tensor (3D);
2) For any state of 3D stress compute the principal stress values (σ1, σ2, σ3) with σ1 > σ2 > σ3;
3) Calculate the maximum shear stress (radius of the three circles);
4) Draws the correspondent Mohr circles;
5) Given the principal stresses (computed at point 2) use the Hooke’s law to calculate the correspondent principal strains;
6) Create a flowchart correspondent to this code (Points 1 to 5).
In: Mechanical Engineering
Fluid Mechanics:
The speed of shallow water waves in the ocean (e.g., seismic sea
waves or tsunamis) depends only on the still water depth
and the acceleration due to gravity. Derive an expression for wave
speed.
In: Mechanical Engineering
Determine the friction factor, f if water at 71 °C is flowing at 9.1 m/s in 25.4 mm Schedule 40 steel pipe. Given, roughness, Ɛ = 4.57 X 10-5 m.
In: Mechanical Engineering
when engineers disagree with their employees they may engage in organizational disobedience. Describe three types of organizational disobedience (by contrary action,by nonparticipation, by protest.)
In: Mechanical Engineering
Find out about the nominal cruise altitudes of any three aircraft types (you can also give a range of values, and cite the references). When you do the flight performance analyses at those altitude, you will need to use the gravitational acceleration and in most cases the sea level value g0 is used. Let us know what you think about that.
In: Mechanical Engineering
Topic: DCS
What is the difference between DCS Network Communication Protocol and Field Communication Protocol?
In: Mechanical Engineering
1- Comment on the effects of changing the position of G on the position of
metacentre.
2- Explain how unstable equilibrium might be achieved?
(Fluid Subject)
In: Mechanical Engineering
a)Using MIL STD 105E, find the sample size for inspection level III, normal inspection, AQL = 1.5%, and lot size of 1000. Determine the sample size.
b)For inspection level I, tightened inspection, AQL = 6.5%, and lot size = 500, find the sample size using MIL STD 105E.
In: Mechanical Engineering
In: Mechanical Engineering
Please discuss 4 major regions for phase change heat transfer
In: Mechanical Engineering
Answer the following questions:
a) In a wall without heat generation, with temperatures T0 and T1,
if the heat in T0 is adiabatic, what phenomena can occur at the end
of the wall?
b) What are the conditions for Despicable Convective Resistance and
negligible Conductivity?
c) In what case, can they be considered as concentrated or finned
parameters?
In: Mechanical Engineering
A cylinder with a 20 inch stroke and a 4:3 area ratio with a bore of 6 inch diameter takes 4 seconds to extend. What is the flow required for extention?
In: Mechanical Engineering
1- What is the continuum assumption? Why do we make this assumption in fluid mechanics?
2-Describe Newtonian and non- Newtonian fluids and give examples?
3-Define Mach number, and describe compressible and incompressible flows?
In: Mechanical Engineering