The equations of motion for an undamped 2 DOF system are shown below. Find the transfer function X1/F2. You do not need...
The equations of motion for an undamped 2 DOF system are shown below. Find the transfer function X1/F2. You do not need to find the other three transfer functions. 5. 2 2+k3 )x2 = F2 dt- The equations of motion for an undamped 2 DOF system are shown below. Find the transfer function X1/F2. You do not need to find the other three transfer functions. 5. 2 2+k3 )x2 = F2 dt-
Problem 2) For a 2 DOF system the equations of motion are given as: [mi 0 0 m2 (X2 mig L -m29 L -m29 L m29 L Where m1 =m2 =m g=gravity and L =length a) Determine the frequencies and mode shapes. b) Verify that the natural modes are orthogonal. c) Determine the response fX:(0) Note: x1(t) = xo , x2(t) = 0 and xi(t) = xo , iz(t) = 0 d) If the system is excited by a harmonic...
Homework 7: Undamped, 2-DOF System 1. A system with two masses of which the origins are at the SEPs is shown in Figure 1. The mass of m2 is acted by the external force of f(t). Assume that the cable between the two springs, k2 and k3 is not stretchable. Solve the following problems (a) Draw free-body diagrams for the two masses and derive their EOMs (b) Represent the EOMs in a matrix fornm (c) Find the undamped, natural frequencies...
3(a). Find the equations of motion for the system shown below. The system is two degree of freedom system with degrees of freedom X, and X2. Please find two equations of motion for this dynamical system by both Newtons method and Euler Lagrange. The point with which the spring is attached with the wall has zero displacement indeed) x X2 m2 ki kr Frictionless surfaces on which masses are resting Springs can be assumed to be massless Formulas: Formula to...
2. For the following 3-DOF spring-mass system: (a) Derive the equations of motion. (b) Assuming ki-k2-k3-k and mi-m2-m3-m, determine the natural frequencies and mode shapes. rt
. (40pts) Consider a spring-mass-damper system shown below, where the input u() is displacement input at the right end of the spring k3 and x() is the displacement of mass ml. (Note that the input is displacement, NOT force) k3 k1 m2 (a) (10pts) Draw necessary free-body diagrams, and the governing equations of motion of the system. (b) (10pts) Find the transfer function from the input u() to the output x(t). (c) (10pts) Given the system parameter values of m1-m2-1,...
A single dof vibration system, modeled by a mass of 50 kg, damping coefficient of 300 Ns/m, and spring constant of 5000 N/m, is subjected to periodic displacement excitation u(t) as shown in the figure below. 1. Derive the equation of motion 2. Using Laplace transform, find characteristic equation. 3. Find the undamped and damped natural frequencies. 4. Find the damping ratio. 5. Find the transfer function of output x(t) to the periodic input u(t) using Laplace transform.
w a. Obtain the transfer functions X1(s)/U(s) and X2(s)/U(s) of the mechanical system shown in the figure. b. Solve the transfer function to retrieve the information on the response function (as a function of time t) by assuming the m1 = m2 and ki = ki =k3 C. Plot the response function d. Show the impact of doubling the mass m2 = 2m1 on the response function - plot it to compare it with that described in case C
Write the differential equations of motion, convert to Laplace domain and find the transfer function indicated. Use: k1 k2 k3 2, m1 mz 3, c4 G(s)265) )Y(s) y0) disphcement input
Problem #5: Transfer Function: Mechanical System 3 2. Variables: Mass terms; mi, m2 Damping term; b1 Stiffness terms; ki, k2, k3 Friction term; f Write the equations of motion from applying the law of physics to the system Write Transfer Function, Y(s)/X1(s) a) b)