Q3The landing gear of an airplane has m = 2000 kg.It can be idealized as the spring-mass-dampersystem shown in the figure. If the runway surfaceis described y(t) = 0.2 cos 157t, determine thevalues of k and c that limit the amplitude ofvibration of the airplane (x) to 0.1 m.y(t)x(t)mRunway

Answered: Image /qna-images/answer/ce27d59f-03b8-427f-8bc1-2d634f26a765.jpg

Answered: Q3 The landing gear of an airplane has…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Q2\ Amass is suspended from a spring system as shown in fig. Determine the natural frequency of the system. Given: m=30kg K1 = 1000 N/m K,= 2000 K3 =4000 N/m Q3\ the mass of a spring-mass-dashpot system is given an initial velocity 10W„ . where 10W,is the undamped natural frequency of the system. Find the equation of motion for the system, when F = 0.5. Q4\Find the natural frequency of the system shown in fig. Given: m=10 kg, K, = 2500 , K, = 1500 N/m K3= 2000 N/m- ttt A(m)
An electric motor with a mass of 20 kg is placed in the middle of a beam that is jointly connected on both sides. Rotor its unbalance is equivalent to a mass of 0.3 kg at a distance of 0.020 m from the axis of rotation. Due to the electric motor force acting on the beam t Sin F F  0 . The rotor is rotating at an angular speed of  = 40 rad / sec. Engine under the influence of force Find the displacement amplitude at the point where it is located (in the middle). The beam mass will be neglected. The beam has a modulus of elasticity E = 200000000000 N / m2 (200 GPa).
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Identify the expression for the natural frequency of the system shown in the figure.
In vibration testing, an instrumented hammer is often used to hit a device to excite it and to measure the impact force simultaneously. If the device being tested is a single- degree-of-freedom system, determine the response at t = 0.55 s of the device considering: M = 1 kg, c = 5 kg/s, k = 100 N/m, and F(t) = 0.35 (t) +0.28 (t - 0.5) N Assume that the initial conditions are zero. 0.08 mm 0.98 mm 1.77 mm 3.29 mm 2.08 mm Test Structure. FO C www. Impact Hammer ▼x(1) D
Please solve this problem by showing the manual calculation and choose the correct answer(SUBJECT: mechanical vibrations)
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Determine the differential equation of motion for the damped free vibratory system shown. What type of motion occurs? Take k=100 N/m, c = 200 N.s/m and m=25 kg O 25y + 300y = 0 and it is ur ÿ +12y + 16y = 0 and it is 25y + 300y + 400y = 0 and ÿ + 16y + 12y = 0 and it is
A 40 kg fan has a rotation unbalance of magnitude of 0.01 kg.m. The fan is mounted on a beam which is specially treated to have a viscous damping. By the variation of the speed of the fan, the amplitude of the vibration varies too. What is the fan's steady state amplitude when it operates at 1000 r/min? Givens: E = 200 GPa, I = 1.3 x10-6 m, L = 1.2 m, damping ratio = 0.06 Select one: O 2 mm 13.6 mm O 3.65 mm O9 mm TOSHIBA
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The platform, supported by a pin at B and a spring at C, is in equilibriumin the position shown. When the viscous damper at A is disconnected, thefrequency of the system for small amplitudes is 2.22 Hz. Determine the damping coefficient c that would critically damp the system.
Determine the block's amplitude of motion for the above condition (i.e., at f = 0.190 Hz)

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