A piezoelectric material in the form of a rectangular bar has the dimensions a, b, c, and piezoelectric modulus d(ij)(provided in matrix form in the solution attachment). 1) Find the new dimensions of the bar if an electric field, E is applied along the X2 axis. Will it remain rectangular? 2) Suppose a shear ...continues
This is a problem related with the design of demineralizer for the Boiler water treatment, using ionic resins for ionic charge removal
Difficulty for solving a problem relating to a truss
How can I solve this problem below by the method of section. Because when I made a section, I always found 4 unknown for 3 equations of equilibrium. Below there are the asking problem plus the answer relating to it for verification, and finally a drawing file attached. Note: The little circle represent the joints between me ...continues
Working with boiler suspension bolts.
An HRT boiler is 4766mm long and 3533mm in diameter. It has 66 steel tubes with a diameter of 9mm. The total dry weight of the boiler is 2.565 tonnes. 4 bolts are to suspend the boiler. If each bolt has to be strong enough to support 1/2 the weight of a filled boiler, what will be the diameter of the bolts? Note: each bolt m ...continues
Difficulty over a problem of friction about sleeve
How can I solve this problem below: The asking problem: A safety device used by workers climbing ladders fixed to high structures consists of a rail attached to the ladder and a sleeve which may slide on the flange of the rail. A chain connects the worker's belt to the end of an eccentric cam which may rotate about an axle a ...continues
Difficulty over a mechanism with friction
How can I solve this problem below. The mechanism shown is acted upon by the force P of magnitude P=20 lb. Knowing that teta=25 degree and that the coefficient of static friction between collar C and the horizontal rod is 0.30, determine the range of values of Q for which equilibrium is maintained. I included the mechanism ...continues
What i really want is to design a mathematical model to control the level of water in a water tank. And based on that the following two models. 1) Controlling the level of liquid in a water tank using mathematical model 2) PID controller for controlling the level of liquid in a water tank using the same mathematical model equa ...continues
Statics - Finding Force Exerted and Reaction
A small hoist is mounted on the back of a pickup truck and is used to lift a 12--kg crate.Determine (a) the force exerted on the hoist by the hydraulic cylinder BC, (b) the reaction at A. FOR DIAGRAM PLEASE SEE ATTACHED
Measuring Tension (Mechanical Eng.)
The 10-kg square plate shown is supported by three vertical wires. Determine the tension in each wire when a = 65mm. (FOR DIAGRAM PLEASE SEE ATTACHED)
Attached you will find the problem that I have been working on and the work that I have compleated so far. I do not know how to do part 4 and also could you check over the work that i have compleated. thanks
