Mathematical Models: Mechanical Vibrations, Population Dynamics, and Traffic Flow : an Introduction to Applied Mathematics |
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Page 68
... curve in the dx / dt vs. x space , for each value of E : dx dt X Figure 20-1 Typical energy curve . For each time , the solution x ( t ) corresponds to one point on this curve since if x ( t ) is known so is dx / dt . As time changes ...
... curve in the dx / dt vs. x space , for each value of E : dx dt X Figure 20-1 Typical energy curve . For each time , the solution x ( t ) corresponds to one point on this curve since if x ( t ) is known so is dx / dt . As time changes ...
Page 69
... curve is quite significant because we can determine certain qualitative features of the solution directly from it . For example for the curve in Fig . 20-3 , since the solution is in the upper half plane , dx / dt > 0 , it follows that ...
... curve is quite significant because we can determine certain qualitative features of the solution directly from it . For example for the curve in Fig . 20-3 , since the solution is in the upper half plane , dx / dt > 0 , it follows that ...
Page 232
... curve is spiralling inwards ( as though the populations of fish and sharks after an oscillation approach closer to their equilibrium values ) , and also part of another solution curve is spiralling outwards ( as though the fish and ...
... curve is spiralling inwards ( as though the populations of fish and sharks after an oscillation approach closer to their equilibrium values ) , and also part of another solution curve is spiralling outwards ( as though the fish and ...
Contents
NEWTONS | 6 |
OSCILLATION OF A SPRINGMASS SYSTEM | 12 |
QUALITATIVE AND QUANTITATIVE BEHAVIOR | 18 |
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Mathematical Models: Mechanical Vibrations, Population Dynamics, and Traffic ... Richard Haberman No preview available - 1998 |
Common terms and phrases
amplitude of oscillation analyze approximation Assume birth c₁ calculation characteristics Consider constant coefficient corresponding d2x dt2 damping de/dt decreases delay depend derived determine difference equation discussed dx dt dx/dt energy integral equilibrium population equilibrium solution equivalent example exercise exponential Figure formula function growth rate Hint increases initial conditions initial value problem isoclines linearized stability analysis logistic equation mass mathematical model maximum method of characteristics motion moving N₁ Newton's nonlinear pendulum number of cars obtained occur ordinary differential equations oscillation P₁ partial differential equation period phase plane Pmax population growth potential energy r₁ result sharks shock Show shown in Fig simple harmonic motion Sketch the solution sketched in Fig slope solution curves solve species spring spring-mass system stable straight line Suppose Taylor series tion traffic flow trajectories Umax unstable equilibrium position variables vector x₁ yields zero