tweaks

scripts/string_model.py

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+
+import scipy.signal as sig
+import matplotlib.pyplot as plt
+import numpy as np
+
+# simple first order step response simulation
+# www.halvorsen.blog/documents/programming/python/resources/powerpoints/State Space Models with Python.pdf
+
+# simulation Parameters
+x0 = [0, 0]
+start = 0
+stop = 30
+step = 1
+
+t = np.arange(start,stop,step)
+K = 3
+T = 4
+
+# state-space Model
+A = [[-1/T, 0], [0, 0]]
+B = [[K/T], [0]]
+C = [[1, 0]]
+D = 0
+sys = sig.StateSpace(A, B, C, D)
+
+# step Response
+t, y = sig.step(sys, x0, t)
+
+# plotting
+plt.plot(t, y)
+plt.title("Step Response")
+plt.xlabel("t")
+plt.ylabel("y")
+plt.grid()
+plt.show()