Calculo de centroide de un perfil


Perfil Aerodinámico
Puntos
1.0000 0.0013
0.9500 0.0147
0.9000 0.0271
0.8000 0.0489
0.7000 0.0669
0.6000 0.0814
0.5000 0.0919
0.4000 0.0980
0.30000.0976
0.2500 0.0941
0.2000 0.0880
0.1500 0.0789
0.1000 0.0659
0.0750 0.0576
0.0500 0.0473
0.0250 0.0339
0.0125 0.0244
0.0000 0.0000
0.0125 -0.01430.0250 -0.0195
0.0500 -0.0249
0.0750 -0.0274




0.1000 -0.0286
0.1500 -0.0288
0.2000 -0.0274
0.2500 -0.0250
0.3000 -0.0226
0.4000 -0.0180
0.5000-0.0140
0.6000 -0.0100
0.7000 -0.0065
0.8000 -0.0039
0.9000 -0.0022
0.9500 -0.0016
1.0000 -0.0013













a)b)
Graficas del perfil a) gráfica del perfil con la curva original y con el ajuste de curvas, las cuales casi no se perciben ya que son demasiado aproximadas a lospuntos originales. b) perfil con el centroide localizado.
Polinomios:
Curva superior:
f=-3.8368e+005*x^14+2.5551e+006*x^13-7.5919e+006*x^12+1.3284e+007*x^11-1.5216e+007*x^10+ 1.1999e+007*x^9-6.6709e+006*x^8+2.6342e+006*x^7-7.3495e+005*x^6+1.4243e+005*x^5-1.8598e+004*x^4+1.5620e+003*x^3-79.7280*x^2+ 2.6455*x+2.3393e-004;

Curva inferior:
g= 1.9497e+005*x^14-1.3009e+006x^13+3.8741e+006*x^12-6.7970e+006*x^11+7.8110e+006*x^10-6.1845e+006*x^9+3.4563e+006*x^8-1.3743e+006*x^7+3.8715e+005*x^6-7.6079e+004*x^5+1.0147e+004*x^4-882.2740*x^3+47.8202*x^2-1.5728*x-1.2521e-004;

Áreas
Curvasuperior: 0.069506981186027 u2
Curva inferior: 0.014833674291178 u2
Total: 0.084340655477205 u2

Centroide de masa

Curva superior Centroide del perfil
0.450262622533007 cm0.309753256611040cm


0.039545878684784 cm 0.034383409496275cm


Curva inferior
-0.348639375038388cm


0.010193337521142 cm


Elemento
A
x
y
Ax
Ay
C.S
0.069506981186027...