Develop the basic equations of motion for each of the three mass elements (do it for the rack, even though its inertia is zero). Do not solve for spring and damper b. forces yet: leave answers in terms of jki, ma.,jai,fo, etc.
What is the "stretch" in the spring K2 and as such, what is the torque in that spring? Be consistent with the directions of the torque as shown in your FBDs above. c. d. Express the force in spring Ki and the force in damper Bi. Eliminate the gear force acting between Ji and the rack and obtain your two "final" equations of motion. e.
f. Put your final EOM in the state-space form: 02
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4. Given the mechanical system shown in the following diagram: 6,,02 J, K, No slip-_ F(t) Massles...
Q2 A rotational mechanical system is shown in Figure 2.1. T(t) is the external torque and...
Q2 A rotational mechanical system is shown in Figure 2.1. T(t) is the external torque and is the input to the system. 01(t) is the angular displacement of inertia Ji and O2(t) is the angular displacement of inertia J2. C and C are friction coefficients and K, and K2 are spring constants. (a) Draw the free-body diagrams for J; and Jz. (7 marks) (b) Derive the equations of motion for the system shown in Figure 2.1. (8 marks) (c) Using...
pleas show all work May. 15, 2019 PROBLEMI (22%) Free body diagram: 24 K o (x,0) 0.5r No slip (a) An eccentric disk is rotating on the ground as shown in the figure above. The disk has radius r. T...
pleas show all work
May. 15, 2019 PROBLEMI (22%) Free body diagram: 24 K o (x,0) 0.5r No slip (a) An eccentric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of the disk (denoted as C) to its geometric center (denoted as O) sır. The angle of rotation of the disk is θ and the displacement at point O is x. The disk has...
Free body diagram: 24 0.5r 0.5r No slip (a) An ec centric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of th...
Free body diagram: 24 0.5r 0.5r No slip (a) An ec centric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of the disk (denoted as C) to its geometric center (denoted as O) is 1 r. The angle of rotation of the disk is θ and the displacement at point O is x. The disk has mass m. The moment of inertia with respect...
3) For the system shown in the figure, the input is the torque T(t) and the...
3) For the system shown in the figure, the input is the torque T(t) and the outputs are the linear displacements x(t) and the angular displacement θ(t). The equilibrium position corresponds to x 0 0. Note that there is viscous friction between the rack and the surface it slides on. Also, you may treat the small diameter shaft as massless and rigid. mr Clearly state all assumptions to be used for modeling this system. Draw the freebody diagrams. State your...
Question 5 (20 marks) a) Develop a Lagrangian for the system shown, for small displacements from equilibrium when 6 (t)-0. The cylinder rotates on a fixed axis and has moment of inertia, J, about thi...
Question 5 (20 marks) a) Develop a Lagrangian for the system shown, for small displacements from equilibrium when 6 (t)-0. The cylinder rotates on a fixed axis and has moment of inertia, J, about this axis. [5 marks] x (t) k2 b) Then use Lagrange's Equation to determine the equations of motion. M(t) denotes an external moment applied to the cylinder. Also, express the equations in matrix form. [10 marks] c) Comment briefly on the dominant dynamic effects you would...
The mechanical system shown in the figure below is excited by a sinusoidal force f(t)-Fi cos(ut...
The mechanical system shown in the figure below is excited by a sinusoidal force f(t)-Fi cos(ut + ?) N. The differential equation of the displacement x(t) is Use phasor techniques to solve for the displacement phasor Xin terms of the excitation frequency ? , and the mechanical elements M = 0.1 kg, D = 8 N-s/m , and K = 2,000 N/m . If Fi-10 N and ?? = 30°, determine the excitation frequency w (in rad/s) at which the...
Consider the electromechanical dynamic system shown in Figure 1(a). It consists of a cart of mass...
This assignment is for my Engr dynamics systems class.
Consider the electromechanical dynamic system shown in Figure 1(a). It consists of a cart of mass m moving without slipping on a linear ground track. The cart is equipped with an armature-controlled DC motor, which is coupled to a rack and pinion mechanism to convert the rotational motion to translation and to create the driving force for the system. Figure 1(b) shows the simplified equivalent electric circuit and the mechanical model...
For the system shown in Fig. 1, solve the following problems. (a) Find the transfer function, G(s...
For the system shown in Fig. 1, solve the following problems. (a) Find the transfer function, G(s)X2 (s)/F(s) (b) Does the system oscillate with a unit step input (f (t))? Explain the reason (c) Decide if the system(x2 (t)) is stable with a unit step input (f (t))? Explain the reason 1. 320) 8 kg 2 N/m 4N-s/m 2N-s/m Fig. 1 2. There are two suspensions for a car as shown in Fig. 2 (a) Find the equations of each...
MEMB343 MECHANICAL VIBRATIONS ASSIGNMENT l. For the system shown in Figure 1, where mi=5 kg, m,-10 kg, ki=1000 N/m, k2-500 N/m, k, 2000 N/m, fi-100sin(15t) N and f-0, use modal analysis to determine...
MEMB343 MECHANICAL VIBRATIONS ASSIGNMENT l. For the system shown in Figure 1, where mi=5 kg, m,-10 kg, ki=1000 N/m, k2-500 N/m, k, 2000 N/m, fi-100sin(15t) N and f-0, use modal analysis to determine the amplitudes of masses m, and m2. The equations of motion are given as sin(15t), wth natura frequencies 5 01[i, 0 10 500-500x, 500 2500jx, x,[100 ω,-14.14 rad's and a, = 18.71 rad/s, and mode shapes, Φ',, and Φ' k, Im Figure 1
MEMB343 MECHANICAL VIBRATIONS ASSIGNMENT...
( 12 marks LO3) Consider an undan ed two-degree-of-freedom spring-mass system, shown in the f g re below. The motion of the system Es con pletely described by the coordinate 치(t) and x2(t). le H...
( 12 marks LO3) Consider an undan ed two-degree-of-freedom spring-mass system, shown in the f g re below. The motion of the system Es con pletely described by the coordinate 치(t) and x2(t). le Ho Assume: kI- k2 k3 2 Nm, m-m2-1 kg and F-F2- Use the provided white paper to work out your answers, then pick the proper choice from the drop down list The equation of motion of mass 1 is EQ 1-x+6x1-4x2 0 EO 2 x1+4x1-2x2 The...
Q2 A rotational mechanical system is shown in Figure 2.1. T(t) is the external torque and is the input to the system. 01(t) is the angular displacement of inertia Ji and O2(t) is the angular displacement of inertia J2. C and C are friction coefficients and K, and K2 are spring constants. (a) Draw the free-body diagrams for J; and Jz. (7 marks) (b) Derive the equations of motion for the system shown in Figure 2.1. (8 marks) (c) Using...
pleas show all work
May. 15, 2019 PROBLEMI (22%) Free body diagram: 24 K o (x,0) 0.5r No slip (a) An eccentric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of the disk (denoted as C) to its geometric center (denoted as O) sır. The angle of rotation of the disk is θ and the displacement at point O is x. The disk has...
Free body diagram: 24 0.5r 0.5r No slip (a) An ec centric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of the disk (denoted as C) to its geometric center (denoted as O) is 1 r. The angle of rotation of the disk is θ and the displacement at point O is x. The disk has mass m. The moment of inertia with respect...
3) For the system shown in the figure, the input is the torque T(t) and the outputs are the linear displacements x(t) and the angular displacement θ(t). The equilibrium position corresponds to x 0 0. Note that there is viscous friction between the rack and the surface it slides on. Also, you may treat the small diameter shaft as massless and rigid. mr Clearly state all assumptions to be used for modeling this system. Draw the freebody diagrams. State your...
Question 5 (20 marks) a) Develop a Lagrangian for the system shown, for small displacements from equilibrium when 6 (t)-0. The cylinder rotates on a fixed axis and has moment of inertia, J, about this axis. [5 marks] x (t) k2 b) Then use Lagrange's Equation to determine the equations of motion. M(t) denotes an external moment applied to the cylinder. Also, express the equations in matrix form. [10 marks] c) Comment briefly on the dominant dynamic effects you would...
The mechanical system shown in the figure below is excited by a sinusoidal force f(t)-Fi cos(ut + ?) N. The differential equation of the displacement x(t) is Use phasor techniques to solve for the displacement phasor Xin terms of the excitation frequency ? , and the mechanical elements M = 0.1 kg, D = 8 N-s/m , and K = 2,000 N/m . If Fi-10 N and ?? = 30°, determine the excitation frequency w (in rad/s) at which the...
This assignment is for my Engr dynamics systems class.
Consider the electromechanical dynamic system shown in Figure 1(a). It consists of a cart of mass m moving without slipping on a linear ground track. The cart is equipped with an armature-controlled DC motor, which is coupled to a rack and pinion mechanism to convert the rotational motion to translation and to create the driving force for the system. Figure 1(b) shows the simplified equivalent electric circuit and the mechanical model...
For the system shown in Fig. 1, solve the following problems. (a) Find the transfer function, G(s)X2 (s)/F(s) (b) Does the system oscillate with a unit step input (f (t))? Explain the reason (c) Decide if the system(x2 (t)) is stable with a unit step input (f (t))? Explain the reason 1. 320) 8 kg 2 N/m 4N-s/m 2N-s/m Fig. 1 2. There are two suspensions for a car as shown in Fig. 2 (a) Find the equations of each...
MEMB343 MECHANICAL VIBRATIONS ASSIGNMENT l. For the system shown in Figure 1, where mi=5 kg, m,-10 kg, ki=1000 N/m, k2-500 N/m, k, 2000 N/m, fi-100sin(15t) N and f-0, use modal analysis to determine the amplitudes of masses m, and m2. The equations of motion are given as sin(15t), wth natura frequencies 5 01[i, 0 10 500-500x, 500 2500jx, x,[100 ω,-14.14 rad's and a, = 18.71 rad/s, and mode shapes, Φ',, and Φ' k, Im Figure 1
MEMB343 MECHANICAL VIBRATIONS ASSIGNMENT...
( 12 marks LO3) Consider an undan ed two-degree-of-freedom spring-mass system, shown in the f g re below. The motion of the system Es con pletely described by the coordinate 치(t) and x2(t). le Ho Assume: kI- k2 k3 2 Nm, m-m2-1 kg and F-F2- Use the provided white paper to work out your answers, then pick the proper choice from the drop down list The equation of motion of mass 1 is EQ 1-x+6x1-4x2 0 EO 2 x1+4x1-2x2 The...
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