2. Figure Q2 shows a 2DOF mass-elastic system model for studying the dynamics of a machine....
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
2. Figure Q2 shows a 2DOF mass-elastic system model for studying the dynamics of a machine. This comprises two masses m and m2 which slide on frictionless surfaces connected by linear springs with stiffness values k, k2, and k3, and a single linear damper with coefficient c. Variables x, and X2 describe the absolute displacements of the mass m and m2. An external force f(t) is applied directly to m1. X2 XI k mi k2 k ww m2 f(t) D i) Figure Q2 Construct, via free-body diagrams and application of Newtonian mechanics, equations of motion for displacement variables X1, and x2, putting them into matrix form to identify the mass, damping, and stiffness matrices [M], [C], and [K], and excitation vector p(r). [10 marks] When individual mass-elastic parameter values are assigned m = 100 kg, m = 50 kg, k = 1010 N/m, k =510 N/m, and k =10x103 N/m, which results in a modal matrix [U] associated with E=[M]'[K] of magnitude: 0.7071 0.4472] [U]= -0.7071 0.8944 And with the inclusion of all sources of energy dissipation, damping matrix [C] is proportional to the mass matrix such that the magnitude of [C]=5[M]. 2. Figure Q2 shows a 2DOF mass-elastic system model for studying the dynamics of a machine. This comprises two masses m and m2 which slide on frictionless surfaces connected by linear springs with stiffness values k, k2, and k3, and a single linear damper with coefficient c. Variables x, and X2 describe the absolute displacements of the mass m and m2. An external force f(t) is applied directly to m1. X2 XI k mi k2 k ww m2 f(t) D i) Figure Q2 Construct, via free-body diagrams and application of Newtonian mechanics, equations of motion for displacement variables X1, and x2, putting them into matrix form to identify the mass, damping, and stiffness matrices [M], [C], and [K], and excitation vector p(r). [10 marks] When individual mass-elastic parameter values are assigned m = 100 kg, m = 50 kg, k = 1010 N/m, k =510 N/m, and k =10x103 N/m, which results in a modal matrix [U] associated with E=[M]'[K] of magnitude: 0.7071 0.4472] [U]= -0.7071 0.8944 And with the inclusion of all sources of energy dissipation, damping matrix [C] is proportional to the mass matrix such that the magnitude of [C]=5[M].
Expert Answer:
Related Book For
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
Posted Date:
Students also viewed these mechanical engineering questions
-
Q1. You have identified a market opportunity for home media players that would cater for older members of the population. Many older people have difficulty in understanding the operating principles...
-
QUIZ... Let D be a poset and let f : D D be a monotone function. (i) Give the definition of the least pre-fixed point, fix (f), of f. Show that fix (f) is a fixed point of f. [5 marks] (ii) Show that...
-
1. Review the six (6) goals of performance based acquisition(s); choose two and discuss how your choices can be implemented for effective management of contracts, using an actual or theoretical...
-
Construct a stem-and-leaf display for the following data. Use a leaf unit of 10? 1161 1221 1206 1378 1478 1623 1300 1426 1557 1725 1730 1361 1706 1422 1689
-
After the press has run for some time, the lubricating oil described in Problem 8.19 heats to 212F. Compute the Reynolds number for the oil flow at this temperature. Discuss the possible operating...
-
You have completed an audit of activities within the Purchasing Department of Zale Company. The department employs thirty buyers, seven supervisors, a manager, and clerical personnel. Purchases total...
-
McDowell Industries sells on terms of 3/10, net 30. Total sales for the year are $912,500. Forty percent of the customers pay on the 10th day and take discounts; the other 60 percent pay, on average,...
-
What is h'(x) when h(x) = log7 8z+4 2672
-
Problem -2.10: A 200 mm diameter vertical cylinder rotates concentrically inside another cylinder of diameter 202 mm. Both cylinders are 250 mm high. The space between cylinders is filled with a...
-
Why was the biological father barred from pursuing his paternity claim in the case of Michael H. v. Gerald D.?
-
Under which circumstances, if any, do you think that paralegals should be able to provide clients with legal advice?
-
Generally speaking, how did ASFA change the approach to cases of substantiated child abuse or neglect?
-
A light ray traveling through medium 1 with index of refraction \(n_{1}=1.70\) reaches the interface between medium 1 and medium 2 with index of refraction \(n_{2}=1.50\). (a) At what minimum angle...
-
A light ray travels up from the bottom of a tank containing oil (index of refraction \(n=1.48\) ). If the oil surface is smooth, at what minimum angle from the normal to that surface would the light...
-
1.What does Liberskind mean when he says that architecture is a story? 2.Why does Liberskind that an architect should be an optimist? 3.What does L mean by the expression, emotion in architecture?...
-
A woman at a point A on the shore of a circular lake with radius 2 mi wants to arrive at the point C diametrically opposite on the other side of the lake in the shortest possible A time. She can walk...
-
Two 4.0 cm 4.0 cm metal plates are separated by a 0.20-mm-thick piece of Teflon. a. What is the capacitance? b. What is the maximum potential difference between the plates?
-
The resolution of a digital camera is limited by two factors: diffraction by the lens, a limit of any optical system, and the fact that the sensor is divided into discrete pixels. Consider a typical...
-
A pine cone falls straight down from a pine tree growing on a 20 slope. The pine cone hits the ground with a speed of 10 m/s. What is the component of the pine cones impact velocity (a) Parallel to...
-
The following time-series plot and bar graph both present the sales of digital music for the years 20122015. Which of the graphs presents the more accurate picture? Why? Million $ 5000 4800- 5000...
-
The Dow Jones Industrial Average reached its lowest point in recent history on October 9, 2008, when it closed at $8,579. Eight years later, on October 10, 2016, the average had risen to $18,329.04....
-
In 2007, U.S. residents saved approximately $310 billion. In 2015, that amount was $784 billion, about two-and-a-half times greater. Which of the following graphs compares these totals more...
Study smarter with the SolutionInn App