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first version of modal analysis for natural frequencies

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Jukka Aho
2016-06-17 02:10:17 +03:00
parent 74ed32a96c
commit 84bb370cea
14 changed files with 362 additions and 131 deletions
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src/problems.jl
+11 -2
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@@ -84,9 +84,12 @@ Create vector-valued (dim=3) elasticity problem:
julia> prob = Problem(Elasticity, "this is my problem", 3)
"""
function Problem{P<:FieldProblem}(::Type{P}, name, dimension, elements=[], dofmap=Dict())
function Problem{P<:FieldProblem}(::Type{P}, name::ASCIIString, dimension::Int64, elements=[], dofmap=Dict())
Problem{P}(name, dimension, "none", elements, dofmap, Assembly(), P())
end
function Problem{P<:FieldProblem}(::Type{P}, dimension::Int64, elements=[], dofmap=Dict())
Problem{P}("$P problem", dimension, "none", elements, dofmap, Assembly(), P())
end
""" Construct a new boundary problem.
@@ -100,6 +103,12 @@ julia> bc1 = Problem(Dirichlet, "support", 3, "displacement")
function Problem{P<:BoundaryProblem}(::Type{P}, name, dimension, parent_field_name, elements=[], dofmap=Dict())
Problem{P}(name, dimension, parent_field_name, elements, dofmap, Assembly(), P())
end
function Problem{P<:BoundaryProblem}(::Type{P}, main_problem::Problem, elements=[], dofmap=Dict())
name = "$P problem"
dimension = get_unknown_field_dimension(main_problem)
parent_field_name = get_unknown_field_name(main_problem)
Problem{P}(name, dimension, parent_field_name, elements, dofmap, Assembly(), P())
end
function get_formulation_type{P<:FieldProblem}(problem::Problem{P})
return :total
@@ -170,7 +179,7 @@ function update_assembly!(problem, u, la)
# copy current solutions to previous ones and add/replace new solution
# TODO: here we have couple of options and they needs to be clarified
# for total formulation we are solving total quantity Ku=f while in
# for total formulation we are solving total quantity Ku = f while in
# incremental formulation we solve KΔu = f and u = u + Δu
assembly.u_prev = copy(assembly.u)
assembly.la_prev = copy(assembly.la)