Engineering, 13.05.2021 19:00, jennaranelli05
Given the open-loop transfer function of a unit-feedback system:
G(s) = K/s(s + 1)(s2 + 4s + 5)
For the related (P-controlled) closed-loop system:
a) Make a sketch of the branches of the loci on the real axis, as the gain K varies from zero to infinity.
b) Find the closed loop system asymptotes as K??:
-Determine the angles that they make with the real axis
-Determine the location where the asymptotes cross the real axis, i. e.: the root-locus centroid
c) Which of the following poles corresponds to the breakaway (or break-in) point of the loci on the real axis?
a. - s=-1.57
b. - s=-0.895
c. - s=-0.393
d. - s=-0.111
d) Determine the range of K values for which the closed loop system is absolutely stable.
e) Determine (if any) the frequency (in rad/sec) at which the system becomes unstable.
f) Find the departure angle from the complex-conjugate open-loop poles.
g) Sketch the root-locus plot, clearly indicating its most significant characteristics"
-Branches on the real-axis
-Asymptotes and their centroid
-Breakaway and/or break-in point(s)
-Loci crossings on the imaginary axis (if any)
-The corresponding gains at the most significant loci locations, i. e.: at the breakaway, break-in points at the real axis and at the imaginary axis crossings (if any)
-Departure angles from complex-conjugate open-loop poles
h) For what value of gain K, the closed loop system will have a critical dampint condition (?=1)?
Answers: 3
Engineering, 04.07.2019 18:20, 1230bering
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 19:10, nhester3401
Agas is compressed from vi 0.3 m, p 1 bar to of v2 0.1 m3, p2--3 bar. pressure and volume are related linearly during the process. for the gas, find the work, in kj.
Answers: 2
Engineering, 06.07.2019 03:20, mardell2587
Acountershaft is supported by two tapered roller bearings using indirect mounting. the radial bearing loads are 1120 lb for the left-hand bearing and 2190 lb for the right-hand bearing. the shaft rotates at 400 rpm and is to have an l10 life of 40,000 hours and an application factor of 1.4. assume ka2k 15, and find the required radial rating of each bearing
Answers: 3
Given the open-loop transfer function of a unit-feedback system:
G(s) = K/s(s + 1)(s2 + 4s + 5)
Mathematics, 11.10.2019 20:00
History, 11.10.2019 20:00
Mathematics, 11.10.2019 20:00