Tibeuleu/KozaiLidov
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Alex_Hubert
2021-11-05 22:58:32 +01:00
parent b2234afeca
commit 6206307f30
4 changed files with 9 additions and 4 deletions
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9
lib/objects.py
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@@ -100,14 +100,16 @@ class System:
def Update_a(self): #update acceleration of bodies in system
for body in self.bodylist:
body.a = np.zeros(3)
for otherbody in self.bodylist:
if body != otherbody:
rij = np.linalg.norm(body.q-otherbody.q)
body.a = body.a - (body.q-otherbody.q)*G*otherbody.m/(rij**2)
body.a = body.a - (body.q-otherbody.q)*G*otherbody.m/(rij**3)
return 1
def Update_j(self): #update jerk of bodies in system
for body in self.bodylist:
body.j = np.zeros(3)
for otherbody in self.bodylist:
if body != otherbody:
rij = np.linalg.norm(body.q-otherbody.q)
@@ -121,18 +123,21 @@ class System:
for body in self.bodylist:
body.qp = body.q +dt*body.v+((dt**2)*body.a/2.)+((dt**3)*body.j/6.)
body.vp = body.v + dt*body.a + ((dt**2)*body.j/2.)
#print("v=",body.v," vp=" ,body.vp)
return 1
def Update_ap(self): #update acceleration of bodies in system
for body in self.bodylist:
body.ap = np.zeros(3)
for otherbody in self.bodylist:
if body != otherbody:
rij = np.linalg.norm(body.qp-otherbody.qp)
body.ap = body.ap - (body.qp-otherbody.qp)*G*otherbody.m/(rij**2)
body.ap = body.ap - (body.qp-otherbody.qp)*G*otherbody.m/(rij**3)
return 1
def Update_jp(self): #update jerk of bodies in system
for body in self.bodylist:
body.jp = np.zeros(3)
for otherbody in self.bodylist:
if body != otherbody:
rij = np.linalg.norm(body.qp-otherbody.qp)