Steady state Definition and 177 Threads

  1. J

    Steady state temperature

    Problem 1 : Find the steady state temperature of a laterally insulated rod subject to the following conditions. Length of the rod 20, left end insulated and right end held at 100 I am not sure if i fully understand this problem, is this asking me to list the Boundary value conditions ? like...
  2. V

    How Do I Approach a Steady State Current Problem?

    Homework Statement Hello, I've just done a paper on basic electronics and I'm stuck on the last question. I don't know how to go about doing the question. Homework Equations N/A The Attempt at a Solution I don't know how to even start with the question. I've tried googling...
  3. L

    Question about the Steady State Theory (Cosmological model)

    If this should be in the cosmological section, then i don't mind to see it moved, but since it appears to be an abandoned theory, I'm posting this in the classic physics section. I was talking to a religious person, and he was claiming that the big bang theory was... wrong, that it had been...
  4. M

    Linear Algebra; Stochastic matrix and Steady State vectors

    Homework Statement Question: 18. Show that every 2 x 2 stochastic matrix has at least one steady-state vector. Any such matrix can be written as P = |1-a b | | a 1-b | where a and b are constants between 0 and 1. (There are two linearly independent steady-state...
  5. M

    What is Steady State Torque and How is it Calculated?

    Can someone tell me what Steady State (Operating) Torque is and how to calculate it? I'm guessing that it is the troque at operating speed. Any help would be appreciated. Thanks,
  6. S

    1-D steady state heat conduction equation (Cartisian, Cylindrical and Sperical)

    Homework Statement The one dimensional steady-state heat conduction equation in a medium with constant conductivity (k) with a constant volumetric heat generation in three different coordinate systems (fuel rods in a nuclear power plant) is given as: \frac{d^2 T}{dx^2}=-\frac{\dot{q}}{k}...
  7. H

    Fourier transform and steady state solution?

    Hi all! I am asking about a question about Fourier transform. I can only roughly remember things about Fourier transform. I am told that Fourier transform gives the steady state solution, is it? I can hardly relate these two concepts. Can someone try to explain? Many thanks.
  8. J

    Adiabatic steady state flow in a nozzle

    air enters an adaibatic nozzle steadily at 300 kPa, 200 degree celcius and 30m/s and leaves at 100 kPa and 180 m/s. find the exit temperature? when m using energy balance equation: h1 + [ (v1)^2 / 2 ] = h2 + [(v2)^2 / 2 ] i get the answer 184 degree celcius. but when i use the other...
  9. U

    Steady state heat conduction problem

    I have to solve a problem regarding "2D steady state heat conduction problem with an internal heat generation source". For boundary value, dirichlet is applied at 3 sides and neumann is at one side. I can solve this problem when no internal heat source exists and only dirichlet is applied...
  10. H

    Does the accelerated Expansion add credibility to Steady State Cosmology?

    Recently the expansion of the Universe has been found to accelerate. When studying Hoyle, Gold and Bondi's Steady State Cosmology, it clearly predicts an acceleration like this. I realize that this theory has been 'put to bed', and abolished, and all the other colorful language people like to...
  11. K

    Finding the Steady State Eigenvector for Flower Mixture

    Homework Statement In order to prodice a more balanced, sustainable long term mix of flower Skwhere the percentage of the offspring of red flowers are p pink and 1-p redSk= A SoSk= [r p w]Twhere A=[1-p* 1/4* 0p***** 1/2* 1/20***** 1/4* 1/2]determine the stady state eigenvectors(you do not have...
  12. K

    Proving Steady State of Initial Vector S0

    Homework Statement Prove that for any initial state vector S0= [r0 p0 w0] as long as you begin with legitamite proportions (so that r0+p0+w0=1), after a long run you get the same result as Sk= [1/4 1/2 1/4] Homework Equations Sk= b1(Lambda1)^k [X1] +...
  13. maverick280857

    Query regarding steady state error in a velocity control system

    Hi I was reading BC Kuo's Automatic Control Systems where I came across a solved problem (page 369 of 7th edition) regarding velocity control. I have a problem understanding how the steady state error has been computed. The original problem and its solution as given in the book are quoted...
  14. B

    Steady state energy vs. energy rate

    I went for a run and measured time and distance. I wanted to estimate how many calories I used. Suppose a ran a distance x in an amount of t time. if my mass is m, then my stead state average energy would be E=\frac{1}{2}m\frac{\Delta{x}^2}{\Delta{t}^2} But what is the rate at which...
  15. M

    Is There a Quicker Way to Find the Steady State Solution Than Solving y(t)?

    [SOLVED] Steady state solution I was wondering if I did this question correctly, solving for y(t) and putting t = infinity to get a steady state solution. Or is this wrong or is there an alternative way that is much quicker (as solving for y(t) would take a page of working, where the working...
  16. M

    Conduction - Steady State Triangular Element

    Homework Statement Obtain the temperature distribution T(x,y) of the triangular cross section, assuming constant thermal conductivity, k. The triangle is a right-isosceles triangle with the right angle at (0,0). The triangle goes "up" to a, and to the right to a, then diagonally across...
  17. K

    Steady State Solution for the Equation 4y''+4y'+17y=202cos3t

    Homework Statement What is the steady state solution to the equation 4y''+4y'+17y=202cos3t (*) ? 2. The attempt at a solution The steady state solution is, if I've got it right, only the particular solution. It's got to be on the form Kcos3x+Msin3x. I calculate the...
  18. C

    How Does Steady State Heat Conduction Impact Home Heating System Design?

    In the steady state heat conduction through a solid rod the theoretical derivation tells that heat in-heat out-heat accumulated =0. What is a practical steady state heat conduction problem? what is transient heat conduction
  19. J

    Effect of Damping on Steady State Vibration:Harmonic Excitation

    Considering the response of a single degree of freedom system to harmonic excitation with viscous damping , following conclusions can be drawn: Now, The response of a single degree of freedom system to harmonic excitation can be split into: a) Steady Sate response (or vibration) which...
  20. B

    How does steady state refrigeration work?

    When a refrigerator has been turned on for some time, steady state refrigeration occurs. This is the normal refrigerator operative state. But what exactly happens? These things are really hard to do research on, since Internet searches, regardless of search query detailing, result in a lot...
  21. M

    Estimate time to reach steady state

    I have some first order differential equations. I have found the steady state response for each equation. However, now I need to estimate how long it will take to reach steady state. Can anyone tell me the formula for that or get me started on how i go about doing this. I'm not finding...
  22. M

    Finding the steady state vector and probablity confused, matrices.

    Hello everyone, confused. the directions to this problem are the following: Find the steay-steat vector, and assuming the chain starts at 1, find the probablity that it is in state 2, after 3 transitions. well i got the problem and i got the S0 to S3, because it said after 3 transitions, is...
  23. P

    What is the inductance needed for a maximum potential difference?

    I have a problem that goes as followed: http://www.webassign.net/pse/p32-19.gif Consider the circuit in Figure P32.17, taking = 6 V, L = 4.00 mH, and R = 6.00 (a) What is the inductive time constant of the circuit? I found this to be .6667 ms (b) Calculate the current in the circuit 250...
  24. B

    Finding Steady State Solutions for a Mass-Spring System with a Moving Support

    Can someone help me out with the following question? Q. The position x(t) at time t of a mass attached to a spring hanging from a moving support satisifies the differential equation: \frac{{d^2 x}}{{dt^2 }} + 2p\frac{{dx}}{{dt}} + \omega _0 ^2 x = 2\sin \left( t \right) a) Find the...
  25. P

    Markov chains and steady state vectors

    In my data management class we are studying matricies, we have broken the whole unit up into sections and then in small groups we have to teach the rest of the class a section or the matrix unit. Well, our section is markov chains. I understand it myself but I don't know if I'll be able to...
  26. B

    How to begin oscillation in steady state?

    I need to find the initial conditions such than an underdamped harmonic oscillator will immediately begin steady-state motion under the time dependent force F = m f cosωt. For the underdamped case: x(t) = ae^{-\gamma t}cos(\Omega t+\alpha)+\frac{f}{r}cos(\omega t-\theta) and if it matter...
  27. H

    The difference between system equili and system and steady state

    Can anyone explain the difference between a system at equilibrium and a system at steady-state water flow? I know that equilibrium occurs at equal rates, no net change is produced. But I don't understand steady state system...Please explain it to me... Thanks also the difference between...
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