Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
as commercial aircraft engines have developed they have become more reliable extended-twin engine-operations etops is a
1 an electron and a positron each have a mass of 911 x 10-31 kg what electric field directed downward will exactly
a ftywheel with moment of inertia i has a torsion al absorber with moment of inertia id free to rotate on the shaft and
a jig used to size coal contains a screen that reciprocates with a frequency of 600 cpm the jig weighs 500 ib and has a
determine the natural frequencies and normal modes of the system shown in figure
an airfoil section to be tested in a wind tunnel is supported by a linear spring k and a torsional spring k as shown in
a rotor is mounted in bearings that are free to move in a single plane as shown in figure the rotor is symmetrical
in problem if the two masses are made equal show that normal mode frequencies are establish the configuration for
determine the equations of motion for the system of problem when the initial conditions arex10a
assuming small amplitudes set up the differential equations of motion for the double pendulum using the coordinates
determine the natural frequency of the torsion al system shown in figure and draw the normal mode curve g 115 x 106
if k1 0 in the torsional system of problem the system becomes a degenerate two-dof system with only one natural
an electric train made up of two cars each weighing 50000 lb is connected by couplings of stiffness equal to 16000 lbin
set up the equations of motion of the double pendulum in terms of angles theta1 and theta2 measured from the
in problem if m1 2m and m2 m determine the normal mode frequencies and mode shapesproblemtwo masses m1 and m2 are
two equal pendulums free to rotate about the x-x axis are coupled together by a rubber hose of torsion al stiffness k
compare probs1 and 2 in matrix form and indicate the type of coupling present in each coordinate systemproblem
the lower mass of problem is given a sharp blow imparting to it an initial velocity determine the equation of
choose coordinates x for the displacement of c and 6 clockwise for the rotation of the uniform bar shown in figure and
set up the matrix equation of motion for the system shown in figure using coordinates x1 and x2 at m and 2mdetermine
referring to problem prove in general that the uncoupled natural frequencies are always between the coupled natural
in problem show that with small damping the amplitude will build up to a value1 - e-1 times the steady-state value in
assume that a lightly damped system is driven by a force f0sinomegantvnbsp where omegan is the natural frequency of the
draw a flow diagram for the damped system excited by base motion yt with initial conditionsx0x1 and
write a fortran program for problem in which the base motion is a half-sine waveproblemdraw a flow diagram for the