State-space Definition and 19 Threads

Hi everybody. I like to model dynamical systems, but over the last few years, I've been busy implementing simulations, without actually deriving their equations of motions. I'm thus here to check with members whether some systems for which I wrote the equations of motions are actually corrects.

------------EDIT---------------------------------------------------------------------------- Check comment #7 for neater and faster explanation of the question statement --------------------------------------------------------------------------------------------- The symbols represent: H, water...

Homework Statement equations above are descriptive of a system with two configuration variables, q1 and q2. inputs are tau1 and tau2. d and c values are given. the question is about conversion of above equations to a state-space equation where the state-variables are x1 = q1_dot, x2 = q1_2dot...

In state space, the coordinates are the state variables of a system.So,each point in state space represents a specific value of state variables.Thus,state space representation represents the changes in a dynamical system. The state variables are the minimum number of variables which uniquely...

Homework Statement The state space model of a nonlinear system is x'_1(t) = 2x^2_2(t) - 50 x'_2(t) = -x_1(t) - 3x_2(t) + u(t) Where x_1(t) and x_2(t) are the states, and u(t) is the input. The output of the system is x_2(t). Find the state space model of this system linearized at the...

Homework Statement The task is to write the following equations of motion as in equation (2) considering the inputs and outputs as in equation (3) \begin{equation} \begin{cases}...

Homework Statement [/B] Here is the problem: And this is the system in question: Homework Equations G(s) = θ_0(s)/θ_i(s) = output/input (open-loop transfer function) The Attempt at a Solution I've been staring at this problem and looking through my textbook for over an hour but...

Hi, I'm reading Ogata's Modern Control Engineering, and when he talks about the representation of a differential equation in state space he divides the method in two. The first one is when the input of the differential equation involves no derivative term, for example: x'(t)+x(t)=u(t) The...

Hi, I have a 'simplified' equation of the magnetically suspended ball. a = g - (i/h * M) where a - actual acceleration of the ball. h - distance from the magnet. g - gravitational acceleration, to keep it simple let g = 10 M - mass of the ball 0.05 kg i - current through the...

Homework Statement Derive the state space model of a spring-mass-damper system. Neglect friction, wind resistance, etc. Neglect the force of gravity. Assume the spring's equilibrium point is at y=0 and there is an arbitrary Homework Equations [X'] = AX + BU y = CX + DUThe Attempt at a...

Hi all, I have a linear algebra question relating actually to control systems (applied differential equations) for the linear system {\dot{\vec{{x}}} = {\bf{A}}{\vec{{x}}} + {\bf{B}}}{\vec{{u}}}\\ \\ A \in \mathbb{R}^{ nxn }\\ B \in \mathbb{R}^{ nx1 }\\ In class, we formed a...

Could you advise a DSP book which explains state-space representation with initial conditions. Initial conditions part is important for me. Thanks.

Homework Statement Inverted pendulum on a cart on a frictionless surface, write the state-space description of a nonlinear system. outputs are theta(t), theta'(t), y(t), y'(t). Everything is 2-dimensional. Homework Equations theta(t) is the angle between the gravity vector and pendulum y(t)...

SOLVED. Just making the post showed me the answer. Sorry!

Suppose that, I have a linear system which is analytically defined as below: \frac{dx}{dt} = Ax + Bu \, ... \, (I) y = Cx + Du \, ... \, (II) A, B, C, D are matrices defining the system, u is input, y is output. I want to simulate this system in computer (not by using Matlab or any other...

Homework Statement A single wheel cat moving on the plane with linear velocity v angular velocity \omega can be modeled by the nonlinear system: dpx/dt = v*cos(\theta) dpy/dt = v*sin(\theta) d\theta/dt = \omega where (px,py) denote the cartesian coordinates of the wheel and...

Anyone have any good online sources for nonlinear state-space modeling? I need to place nonlinear UAV dynamics into state-space form for modelling and seriously running out of good reference material for information.

Homework Statement Hi guys/girls Professor gave this very simple homework where I need to convert the system below to a state-space model. The system itself is represented by the equation m*x" + k*x = f(t) Where m = 5 and k = 1. Note that, " (doublequote) is a second-order derivative...

Homework Statement A time discrete stocastic signal is described by s(k) = w(k-1) + aw(k-2), |a|<1 and w(n) is white gaussian noise with m_w = 0, \sigma_w^2 = 1. It is observed under influence of white noise: y(k) = s(k) + v(k) where v(n) is white gaussian noise with m_v = 0...