Recent content by DaNud

Thanks to everybody. I am trying to solve with the method suggested by rude man. I obtained h(t)=(1/(wn*m))*(sin(wn*t)) Now I have to calculate my convolution integral x(t)=∫(F(j)*h(t-j)dj calculated b/w 0 and t where j is a dummy variable. My slides talk about the...

I don't know how to do it. Could you please explain me? However the equation of motion is a + wn*x = F0/m *cos(wn*t)*u(t)

Yes the transfer function is: a + wn*x = F0*cos(wn*t)*u(t) where a is the acceleration.

I learned that can be applied only for linear system because I am using the superposition principle. I am summing up all the random forces of a generic F(t) at time F(delta). I don't know how can be solved in terms of mathematics.

< Mentor Note -- Poster has been reminded that they need to show their work on schoolwork questions >[/color] Does anybody know how to solve this exercise? Derive the response of an undamped single-degree-offreedom system to force f(t)=F_0*cos(w_n*t)*u(t) with null initial conditions...

In the three phase system of Fig. 8.4, calculate the magnitude of the line voltage V and the input power factor. Data V 1 = 400 V, Z ̇ L = 0.1 + j0.2 Ω, P 2 = 10 kW cos φ 2 = 0.6, Z ̇ 1 = 5∠60 ◦ Ω delta connected, f = 50 Hz. The results are: V=462.76 Cosphi=0.506 In the image attached there...