本文整理匯總了Python中mbwind.System.lhs[:,:]方法的典型用法代碼示例。如果您正苦於以下問題：Python System.lhs[:,:]方法的具體用法？Python System.lhs[:,:]怎麽用？Python System.lhs[:,:]使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類mbwind.System的用法示例。
在下文中一共展示了System.lhs[:,:]方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: test_assemble
# 需要導入模塊: from mbwind import System [as 別名]
# 或者: from mbwind.System import lhs[:,:] [as 別名]
def test_assemble(self):
# Test system:
#
# /-- m2
# m1 -----conn----|
# \-- m3
s = System()
m1 = RigidBody('m1', 1.3)
m2 = RigidBody('m2', 3.4)
m3 = RigidBody('m3', 7.5)
conn = RigidConnection('conn')
s.add_leaf(conn)
s.add_leaf(m1)
conn.add_leaf(m2)
conn.add_leaf(m3)
s.setup()
# Check starting mass matrices of elements are as expected
assert_aae(np.diag(m1.mass_vv[:3, :3]), 1.3)
assert_aae(np.diag(m2.mass_vv[:3, :3]), 3.4)
assert_aae(np.diag(m3.mass_vv[:3, :3]), 7.5)
# Initially make system matrix empty for testing
s.lhs[:, :] = 0
assert_aae(s.lhs, 0)
# After assembly, the mass matrices are put in the correct places:
# 0:6 -> m1 node
# 6:12 -> conn constraints
# 12:18 -> m2 node
# 12:18 -> m3 node
s.assemble()
M = s.lhs.copy()
# Subtract expected mass
M[0:6, 0:6] -= m1.mass_vv
M[12:18, 12:18] -= m2.mass_vv + m3.mass_vv
# Subtract expected constraints
M[0:6, 6:12] -= conn.F_vp
M[6:12, 0:6] -= conn.F_vp
M[12:18, 6:12] -= conn.F_vd
M[6:12, 12:18] -= conn.F_vd
assert_aae(M, 0)