... Forced vibration of degree of freedom system Fig 2: Two DOF system modelling of a motor generator set up A simplified two degree of freedom system is shown in Fig The motion of the system is ... diagrams of the masses and are shown in Fig 1(b) Fig 3: A two degree of freedom spring mass system Equations of motion of degree of freedom system are given by: m1 x1 k1 x1 k2 ( x1 x2 ) F1 ... Forced vibration of degree of freedom system X2 k2 F0 m1m2 m1k2 m2 (k1 k2 ) k1k2 .(6) The above two equations give the steady state amplitude of vibration of two masses respectively...
Ngày tải lên: 29/08/2014, 22:41
... motion are called two degree of freedom systems Number f N b of degrees of freedom Number of masses of the system y in the system y number of possible types of motion of each mass Introduction ... length, angle or some other physical parameters. Any such set of coordinates is called generalized coordinates • Although the equations of motion of a two degree of freedom system are Although the equations of motion of a two degree of freedom ... obtained • Multi‐degree of freedom systems •Modeling of continuous systems as multidegree of freedom systems •Eigenvalue problem Multidegree of freedom systems Multidegree of freedom systems • A...
Ngày tải lên: 29/08/2014, 22:45
Parametric vibrations of mechanical system with several degrees of freedom under the action of electromagnetic force
... problem of construction of a solu tion of the system of equations of the form (2 .12) is considered in detail Thus, following the results of [1], we conclude that when the frequency V of an electric ... 93’ It is easily seen that the system of Eqs (2 .12) is the complete analogy of the differen tial equations of vibrations of a system with single degree of freedom To avoid repeti tion, we shall ... the investigation of one-frequency regime in the system considered can be reduced to a study of two equations: the first of ( ) and one of re maining n equations The choice of the appropriate...
Ngày tải lên: 08/04/2015, 15:30
Chapter 12 vibration of two degree of freedom system
... that of finding the eigenvalues and eigenvectors of the matrix A Example: Determine the normal modes of a double pendulum Solution Kinetic energy of the system = 1 T = m1l12 12 + m2 (l12 12 + ... Damped-free vibration of two-dof systems Consider a two degrees of freedom system with damping as shown in figure x1 k1 c1 m1 x2 k2 c2 m2 k3 c3 Figure Now the equation of motion of this system can ... the normal modes of vibration of a double pendulum with same length and mass of the pendulum Develop a matlab code for determination of free-vibration of a general two-degree of freedom system...
Ngày tải lên: 29/08/2014, 22:44
The Price of Freedom
... their dome of reddish air As he shuffled around the column, fragments of river wound into the sun's glare, reflecting myriads of tiny diamonds – a lesson in subtlety for the mirror-glass office tower ... out there somewhere, tens of thousands of them, but none were aware of his existence No one knew anything about him The thought triggered a subtle, almost guilty flush of pleasure Arranged over ... bookkeeping of their small importing company Compared to most of her acquaintances she had a happy life Two trips back to France over the years had reinforced the rightness of her choice After a week of...
Ngày tải lên: 06/11/2012, 14:13
12 Strikes of Midnight
... Third Strike Wish of Luck [that you never lack of anything in this life] Fourth Strike Wish of Dreams [that you have dreams so as to see them come true] Fifth Strike Wish of Courage [courage ... Sixth Strike Wish of Encounters [that you taste the sweetness of friendship and never feel lonely] Seventh Strike Wish of Family Unity [that you enjoy the enduring ties of a loving family] ... Eighth Strike Wish of Success [that all your projects be fruitful] Ninth Strike Wish of Peace [that your heart be free of anxiety, hatred, and envy] Tenth Strike Wish of Gratitude [that...
Ngày tải lên: 05/06/2013, 01:26
Tài liệu The 12 Gifts of Christmas - By Dr. Michael Norwood pdf
... life becomes infinitely richer The following are descriptions of a new set of 12 Gifts of Christmas– something I also call The 12 Gifts of Life Whatever you choose to call them, their significance ... eyes and allow The 12 Gifts of Life and of Christmas to cut through the shifting shadows of all which may distract you Therein you’ll find a life of grace filled with all 12 Gifts and many more ... mean only of our possessions It includes the free sharing of our smiles, our laughter, our words of comfort and our gestures of kindness Rather than seeking to hold and contain, The Gift of Giving...
Ngày tải lên: 15/12/2013, 06:15
Tài liệu An Introduction to Intelligent and Autonomous Control-Chapter1:Introduction to Intelligent Control Systems with High Degrees of Autonomy pdf
Ngày tải lên: 26/01/2014, 07:20
Tài liệu Color Atlas of Pharmacology (Part 12): Inhibitors of the RAA System ppt
... of license 127 128 Cardiac Drugs Overview of Modes of Action (A) The pumping capacity of the heart is regulated by sympathetic and parasympathetic nerves (pp 84, 105) Drugs capable of interfering ... Inexcitability Stimulus Rate of depolarization Suppression of AP generation Prolongation of refractory period = duration of inexcitability A Effects of antiarrhythmics of the Na+-channel blocking ... neurotransmitters The plasmalemma also harbors the sites of action of cardiac glycosides (the Na/K-ATPases, p 130), of Ca2+ antagonists (Ca2+ channels, p 122 ), and of agents that block Na+ channels (local anesthetics;...
Ngày tải lên: 26/01/2014, 19:20
A HISTORY OF FREEDOM OF THOUGHT pot
... Rationalism (Nineteenth Century) VIII The Justification of Liberty of Thought Bibliography Index A HISTORY OF FREEDOM OF THOUGHT CHAPTER I FREEDOM OF THOUGHT AND THE FORCES AGAINST IT (INTRODUCTORY) ... their thoughts Thus freedom of thought, in any valuable sense, includes freedom of speech At present, in the most civilized countries, freedom of speech is taken as a matter of course and seems ... would involve not only the history of religion, of the Churches, of heresies, of persecution, but also the history of philosophy, of the natural sciences and of political theories From the sixteenth...
Ngày tải lên: 06/03/2014, 13:20
Plant physiology - Chapter 12 Assimilation of Mineral Nutrients potx
... metabolism of legumes show that a plant consumes 12 g of organic carbon per gram of N2 fixed (Heytler et al 1984) On the basis of Equation 12. 9, the ∆G0′ for the overall reaction of biological ... protein and the MoFe protein— neither of which has catalytic activity by itself (Figure 12. 12): • The Fe protein is the smaller of the two components and has two identical subunits of 30 to 72 kDa ... role of amides in the regulation of nitrogen and carbon metabolism Glutamine + 2-oxoglutarate + Fdred → glutamate + Fdox (12. 5) The NADH type of the enzyme (NADH-GOGAT) is located in plastids of...
Ngày tải lên: 07/03/2014, 20:20
Chapter 12 structure of viruses revised
... particle …General Properties of viruses Consists of ≥1 molecule of DNA or RNA enclosed in coat of protein May have additional layers Cannot reproduce independent of living cells nor carry ... study of viruses Virologists: • scientists who study viruses General features of Viruses Viruses are infectious agents with both living and nonliving characteristics Living characteristics of ... Envelope …Generalized Structure of Viruses The Structure of Viruses Virion size range is ~10-400 nm All virions contain a nucleocapsid which is composed of nucleic acid (DNA or RNA) and...
Ngày tải lên: 15/03/2014, 12:53
My Own Kind Of Freedom potx
... a healthy profit and a disastrous loss When you kissed atmo, it was all touch; suddenly the number of variables increased by an order of magnitude: the shape of the ship, the tilt of her nose, ... exact composition of the upper atmosphere—all of it Mal never noticed, of course; none of them noticed They'd only notice if he did it badly; then he would, no doubt, get all sorts of looks and remarks ... reasonable amount of work once he got it set up; and certainly enough to get hold of Asher House and say, Why in the gorram hell did you just blow off my last eight months of work? He did not, of course,...
Ngày tải lên: 15/03/2014, 15:20
BUSINESS 2013: BUSINESS DEGREES OF SUccESS doc
... Communications Technology/ Bachelor of Business and Commerce (Accounting) Bachelor of Business and Commerce/Bachelor of Laws Bachelor of Economics/Bachelor of Laws Bachelor of Business and Commerce (Advanced ... 25 Bachelor of Science/Bachelor of Business and Commerce Bachelor of Information and Communications Technology/ Bachelor of Business and Commerce Bachelor of Information and Communications ... BUSINESS DEGREES OF success CONTENTS Why Study Business at UWS? �������������������������������������������������������������������������������������������������4 Degrees of Success Bachelor of Business...
Ngày tải lên: 23/03/2014, 02:20
A History of Freedom of Thought doc
... M.A., F.B.A Prof GILBERT MURRAY, Litt.D., LL.D., F.B.A Prof J ARTHUR THOMSON, M.A Prof WILLIAM T BREWSTER, M.A A HISTORY OF FREEDOM OF THOUGHT BY J B BURY, M.A., F.B.A HON D.LITT OF OXFORD, DURHAM, ... LL.D OF EDINBURGH, GLASGOW, AND ABERDEEN UNIVERSITIES; REGIUS PROFESSOR OF MODERN HISTORY, CAMBRIDGE UNIVERSITY AUTHOR OF “HISTORY OF THE LATTER ROMAN EMPIRE,” “HISTORY OF GREECE,” “HISTORY OF ... Rationalism (Nineteenth Century) VIII The Justification of Liberty of Thought Bibliography Index [7] A HISTORY OF FREEDOM OF THOUGHT CHAPTER I FREEDOM OF THOUGHT AND THE FORCES AGAINST IT CHAPTER I (INTRODUCTORY)...
Ngày tải lên: 23/03/2014, 05:25
The History of Freedom doc
... words of Epictetus, regarded the laws of the gods, not the wretched laws of the dead Their The History of Freedom, by 47 doctrine of equality, of fraternity, of humanity; their defence of individualism ... not greatly careful of mere rights He had no belief in the natural equality of men, and no dislike of the subordination of classes on the score of birth His ideal of freedom as of the Church was ... memory of Gregory XIII., or the murder of the duc d'Enghien on the genius of Napoleon, or the burning of Servetus on the sanctity of Calvin, or the permission of bigamy on the character of Luther,...
Ngày tải lên: 24/03/2014, 03:21
scientific american - 1996 12 - traces of the big bang
... Smalley of Rice University and Sir Harold W Kroto of the University of Sussex, for their discovery of buckminsterfullerenes, or buckyballs Economics James A Mirrlees of the University of Cambridge ... Osheroff of Stanford University for their discovery of superfluid helium Physiology or Medicine Peter C Doherty of the University of Tennessee and Rolf M Zinkernagel of the University of Zurich, ... Extent and nature of circulation: a Total number of copies (net press run): average number of copies each issue during preceding 12 months, 858,548; actual number of copies of single issue published...
Ngày tải lên: 12/05/2014, 15:18
scientific american - 2000 12 - rulers of the jurassic seas
... he Bank of Sweden’s economics Nobel went to James J Heckman of the University of Chicago and Daniel L McFadden of the University of California at Berkeley for their separate studies of the individual ... millions of transistors and other components onto a single chip Zhores I Alferov of the A F Ioffe Physico-Technical Institute in St Petersburg, Russia, and Herbert Kroemer of the University of California ... front of 30 students and 10 professors when she taught a course at M.I.T in the fall of 1978 Guy Steele, now a computer language researcher at Sun, remembers her as “one of the five or six best professors...
Ngày tải lên: 12/05/2014, 16:06
Luận văn Thạc sỹ - Đề tài Nghiên cứu hệ thống có trễ (Two - Degree - of - freedom - control) và sự kết hợp Two - Degree - of - freedom - control và STR
... gian tìm hiểu, học viên định chọn điều khiển Two-degree -of- freedom- control làm đối tượng nghiên cứu Dựa vào lý thuyết điều khiển Two-degree -of- freedom- control, học viên áp dụng để điều khiển đối ... pháp điều khiển hệ thống có trễ, tập trung vào phương pháp Two-degree -of- freedom- control - Kết hợp điều khiển Two-degree -of- freedom- control với điều khiển Tự chỉnh định STR - Áp dụng phương pháp ... tốt Two-degree -of- freedom- control để tiến hành nghiên cứu phát triển, sau áp dụng vào hệ quạt gió phẳng để kiểm chứng Chương 2: Trình bày chi tiết lý thuyết điều khiển Two-degree -of- freedomcontrol...
Ngày tải lên: 26/05/2014, 00:05