![Question 1.0 [25 marks] Consider the sketch below which an inverted pendulum. bob, M Damper,c spring,k connecting rod mass, m に., pivot Fig 1.0 Determine: i. equivalent inertia ii. equivalent stiffness equivalent damping properties for the system. Derive the natural frequency of the system](http://img.homeworklib.com/questions/819cdab0-3159-11ec-af7a-17b39fb023b3.png?x-oss-process=image/resize,w_560)
Homework Answers
Add Answer to:
Question 1.0 [25 marks] Consider the sketch below which an inverted pendulum. bob, M Damper,c spring,k...
L. 2 uestion 3 (20 marks) A rotating bar of length L and mass m stiffness k and a damper with dam...
L. 2 uestion 3 (20 marks) A rotating bar of length L and mass m stiffness k and a damper with damping constant gy 2 connected (1) Find the total kinetic energy and total pot of the ystem,e total kinetic edamping constonnected with a spring with system. (2) Derive the equation of motion using e (3) Determine the undamped natural fir 4) Calculate the damping ratio of the sy nergy metho frequency of the system. Gven
L. 2 uestion 3...
2 with spring stiffness k 1000 N/m, Consider a mass-spring-damper system shown in Figure mass m...
2 with spring stiffness k 1000 N/m, Consider a mass-spring-damper system shown in Figure mass m = 10 kg, and damping constant c-150 N-s/m. If the initial displacement is xo-o and the initial velocity is 10 m/s (1) Find the damping ratio. (2) Is the system underdamped or overdamped? Why? (3) Calculate the damped natural frequency (4) Determine the free vibration response of the system.
Exercises 1. (introduction) Sketch or plot the displacement of the mass in a mass-spring system for at least two per...
Exercises 1. (introduction) Sketch or plot the displacement of the mass in a mass-spring system for at least two periods for the case when Wn-2rad/s, 괴,-1mm, and eto =-v/5mm/s. 2. (introduction) The approximation sin θ ะ θ is reasonable for θ < 10°. If a pendulum of length 0.5m, has an initial position of 0()0, what is the maximum value of the initial angular velocity that can be given to the pendulum without violating this smll angle approximation? 3. (harmonic...
9. A mechanical component can be modelled as a pendulum with a torsional damper of coefficient,...
9. A mechanical component can be modelled as a pendulum with a torsional damper of coefficient, c, at its oO hinge as shown in Figure Q.9. Stiffness in the system is modelled by a spring of stiffness, k, located at the midpoint of the light bar of length 1. The pendulum is free to rotate about the hinge O and has bob-mass m a) Show that the equation of motion of the system for small angular displacements, 6, is given...
Problem 2 (25%). Deriving the EOM and finding the response. The inverted pendulum below consists of...
Problem 2 (25%). Deriving the EOM and finding the response. The inverted pendulum below consists of springs with two different stiffness: ki and k2 rectangular rod with mass M, length L, and inertia about its CG is IcG-ML/12 (note: I usually just say inertia but we always mean mass moment of inertia! It is a property of the body and describes how the mass is distributed. Larger inertias mean that they have more resistance to a change in motion.) ....
A2. Two identical simple pendulums are connected via a spring as it is shown in Figure A2. The length of the pendulum strut L-0.5m and the mass of attached bob m-2kg, the stiffness coefficient of the...
A2. Two identical simple pendulums are connected via a spring as it is shown in Figure A2. The length of the pendulum strut L-0.5m and the mass of attached bob m-2kg, the stiffness coefficient of the connecting spring is k-80Ns/m. 02 Figure A2. a) Using the free-body diagram method derive the following governing equations for the coupled pendulum system which are given below in matrix form b) Using the characteristic equation method or transformation to principal coordinates find out two...
For the following 2DOF linear mass-spring-damper system r2 (t) M-2kg K -18N/m C- 1.2N s/m i(t) - ...
For the following 2DOF linear mass-spring-damper system r2 (t) M-2kg K -18N/m C- 1.2N s/m i(t) - 5 sin 2t (N) f2(t)-t (N) l. Formulate an IVP for vibration analysis in terms of xi (t) and x2(t) in a matrix form. Assume that the 2. Solve an eigenvalue problem to find the natural frequencies and modeshape vectors of the system 3. What is the modal matrix of the system? Verify the orthogonal properties of the modal matrix, Ф, with system...
Question 3 (24 marks) A uniform bar of length L= 1.1m and mass m = 4.2kg...
Question 3 (24 marks) A uniform bar of length L= 1.1m and mass m = 4.2kg is connected with a spring with stiffness k = 2000N/m and a damper with damping ratio š = 0.3. The bar is rotating about a point that is 10cm from the left end. (1) Calculate the total kinetic energy and total potential energy. (2) Derive the equation of motion using energy based approach. (3) Determine the undamped natural frequency and damped natural frequency of...
QUESTION 4 (140 marks) Determine the damped frequency of the spring-mass system schematically illustrated below if...
QUESTION 4 (140 marks) Determine the damped frequency of the spring-mass system schematically illustrated below if the spring stiffness is 3000 N/m and the damping coefficient c is set at 320 Ns/m. If a periodic 260 N force is applied to the mass at a frequency of 2 Hz, determine the amplitude of the forced vibration. Spring Viscous damper 35 kg Figure 4
L. 2 uestion 3 (20 marks) A rotating bar of length L and mass m stiffness k and a damper with damping constant gy 2 connected (1) Find the total kinetic energy and total pot of the ystem,e total kinetic edamping constonnected with a spring with system. (2) Derive the equation of motion using e (3) Determine the undamped natural fir 4) Calculate the damping ratio of the sy nergy metho frequency of the system. Gven
L. 2 uestion 3...
2 with spring stiffness k 1000 N/m, Consider a mass-spring-damper system shown in Figure mass m = 10 kg, and damping constant c-150 N-s/m. If the initial displacement is xo-o and the initial velocity is 10 m/s (1) Find the damping ratio. (2) Is the system underdamped or overdamped? Why? (3) Calculate the damped natural frequency (4) Determine the free vibration response of the system.
Exercises 1. (introduction) Sketch or plot the displacement of the mass in a mass-spring system for at least two periods for the case when Wn-2rad/s, 괴,-1mm, and eto =-v/5mm/s. 2. (introduction) The approximation sin θ ะ θ is reasonable for θ < 10°. If a pendulum of length 0.5m, has an initial position of 0()0, what is the maximum value of the initial angular velocity that can be given to the pendulum without violating this smll angle approximation? 3. (harmonic...
9. A mechanical component can be modelled as a pendulum with a torsional damper of coefficient, c, at its oO hinge as shown in Figure Q.9. Stiffness in the system is modelled by a spring of stiffness, k, located at the midpoint of the light bar of length 1. The pendulum is free to rotate about the hinge O and has bob-mass m a) Show that the equation of motion of the system for small angular displacements, 6, is given...
Problem 2 (25%). Deriving the EOM and finding the response. The inverted pendulum below consists of springs with two different stiffness: ki and k2 rectangular rod with mass M, length L, and inertia about its CG is IcG-ML/12 (note: I usually just say inertia but we always mean mass moment of inertia! It is a property of the body and describes how the mass is distributed. Larger inertias mean that they have more resistance to a change in motion.) ....
A2. Two identical simple pendulums are connected via a spring as it is shown in Figure A2. The length of the pendulum strut L-0.5m and the mass of attached bob m-2kg, the stiffness coefficient of the connecting spring is k-80Ns/m. 02 Figure A2. a) Using the free-body diagram method derive the following governing equations for the coupled pendulum system which are given below in matrix form b) Using the characteristic equation method or transformation to principal coordinates find out two...
For the following 2DOF linear mass-spring-damper system r2 (t) M-2kg K -18N/m C- 1.2N s/m i(t) - 5 sin 2t (N) f2(t)-t (N) l. Formulate an IVP for vibration analysis in terms of xi (t) and x2(t) in a matrix form. Assume that the 2. Solve an eigenvalue problem to find the natural frequencies and modeshape vectors of the system 3. What is the modal matrix of the system? Verify the orthogonal properties of the modal matrix, Ф, with system...
Question 3 (24 marks) A uniform bar of length L= 1.1m and mass m = 4.2kg is connected with a spring with stiffness k = 2000N/m and a damper with damping ratio š = 0.3. The bar is rotating about a point that is 10cm from the left end. (1) Calculate the total kinetic energy and total potential energy. (2) Derive the equation of motion using energy based approach. (3) Determine the undamped natural frequency and damped natural frequency of...
QUESTION 4 (140 marks) Determine the damped frequency of the spring-mass system schematically illustrated below if the spring stiffness is 3000 N/m and the damping coefficient c is set at 320 Ns/m. If a periodic 260 N force is applied to the mass at a frequency of 2 Hz, determine the amplitude of the forced vibration. Spring Viscous damper 35 kg Figure 4
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago