2.147 The system shown in Fig. 2.120 has a natural frequency of 5 Hz for the following data: m = 10 kg, Jo = 5 kg-m², r₁ = 10 cm, 2= 25 cm. When the system is disturbed by giv- ing it an initial displacement, the amplitude of free vibration is reduced by 80% in 10 cycles. Determine the values of k and c. 777 12 m x(t) 0000 k Pulley, mass moment of inertia Jo

2.147 The system shown in Fig. 2.120 has a natural frequency of 5 Hz for the following data: m = 10 kg, Jo = 5 kg-m², r₁ = 10 cm, 2= 25 cm. When the system is disturbed by giv- ing it an initial displacement, the amplitude of free vibration is reduced by 80% in 10 cycles. Determine the values of k and c. 777 12 m x(t) 0000 k Pulley, mass moment of inertia Jo

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

See similar textbooks

Similar questions

Q2. The system shown in Figure has a natural frequency of 5 Hz for the following data: m = 10 kg, Jo = 5 kg m²,r, initial displacement, the amplitude of free vibration is reduced by 80 percent in 10 cycles. Determine the values of k and c. = 10 cm, r, = 25 cm. When the system is disturbed by giving it an !! k Jo m
[2] Find the equivalent spring stiffness for the vibrating system shown in Fig.2. If kl - k3 - k5 - 2k and k2 - k4 - k6 -k, determine the system natural frequency in Hz k1 k3 k2 ks k4 k6 fig. 2 y
1.19. A spherical ball of weight w and radius r rolls back and forth without slipping in a plane motion inside a bowl whose surface is a surface of revolution formed by the sinusoidal curve v=r(1-0 Find the Rayleigh's method its period for small oscillations. 1.30 COS TX 4r
ASAP
An k For what value of c is the damping ratio of the system of Fig.1 equal to 1.25? If -10cm, r30 cm, 1,-1.1 kg.m", m-10 kg, m-25 kg, k=10 kN/m, k-100 kN/m. Fig.1
2.20. Calculate the frequency of damped oscillation of the system shown in Fig. 2.23 for the values m=1,750 kg, c =3,500 N - s/m, k =7x 10° N/m, a= 1.25 m and b=2.5 m. Determine the value of the critical damping. rigid link k a FIGURE 2.23 Mass supported by a spring and dashpot through a rigid bar
A single degree of freedom mass-spring-damper system is subject to vibration under the influence of a harmonic force. On my site, it is given as m=2 kg, k=800 N/m, c=64 Ns/m. The amplitude of the harmonic force is F0=256 N and its frequency is w= 20 rad/s. Answer the questions in options a, b, and c according to the given information. 1) Calculate the damping ratio of the system (ξ) a.1 b.0.7 c.0.9 d.0.8 2)Calculate the magnification factor (M) of the system. a.0.86 b.1.25 c.0.312 D.0.625 3-) Calculate the maximum vibration amplitude (X) (meters). a.0.2 b.0.1 c.0.4 D.0.3
1. The figure shows a uniform rod with a mass of 3 kg and is pivoted at point A. There is a solid mass of 4 kg at point C. The value of the coefficient of elasticity of the spring k1 = 20 kN / m and k2 = 100 kN / m. Determine; a) the natural system Frequency b) The time taken by the system to complete one oscillating. 20 cm 80 cm k1 B k2 k2 k2
3.21. What is the amplitude of steady-state oscillation of the 30-kg block of the system of Fig. 2000 sin 100N 4 x 106 N/m 40 kg =3 kg m2 cm 20 cm 30 kg Y 2700 N.s/m GURE P3.21 X = 1.52 mm
2- A spring-mass system has a mass (m) 63 Lbs and a stiffness of 150 Lb/in, find: Natural frequency (@) in Rad/s b. The natural frequency (f) in Hz. c. Period (T) in Sec. а.
A single degree of freedom system with mass of 100 Kg, a damping ratio of 0.707 tf and a natural frequency of 8 HZ. The base of the system is excited with a frequency of 80 rad/s, The natural frequency of the system in rad/s Choose... is The value of the stiffness of the system is (N/m) Choose... The damper of the system (in kg/s) is Choose... The frequency ratio is Choose..
Prob. 2: An undamped system vibrates with a frequency of 20 Hz and amplitude of 1 mm. Calculate the maximum amplitude of the system's velocity and acceleration.