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TrainRun.jl
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Split calculation of vehicle resistances for different transport types

development
Max Kannenberg 2022-05-19 21:42:29 +02:00
parent f6ea317fd4
commit 250687a851
2 changed files with 27 additions and 6 deletions
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6
src/behavior.jl
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@ -71,7 +71,11 @@ calculate and return tractive and resisting forces for a data point
function calculateForces!(dataPoint::Dict, CSs::Vector{Dict}, csId::Integer, bsType::String, train::Train, massModel)
# calculate resisting forces
dataPoint[:R_traction] = calcTractionUnitResistance(dataPoint[:v], train)
dataPoint[:R_wagons] = calcWagonsResistance(dataPoint[:v], train)
if train.transportType == :freight
dataPoint[:R_wagons] = calcFreightWagonsResistance(dataPoint[:v], train)
elseif train.transportType == :passenger
dataPoint[:R_wagons] = calcPassengerWagonsResistance(dataPoint[:v], train)
end
dataPoint[:R_train] = dataPoint[:R_traction] + dataPoint[:R_wagons]
dataPoint[:R_path] = calculatePathResistance(CSs, csId, dataPoint[:s], massModel, train)
dataPoint[:F_R] = dataPoint[:R_train] + dataPoint[:R_path]

27
src/formulary.jl
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@ -68,17 +68,34 @@ end #function calcTractionUnitResistance
"""
TODO
calculate and return the wagons vehicle resistance dependend on the velocity
calculate and return the freight wagons' vehicle resistance dependend on the velocity
"""
function calcWagonsResistance(v::AbstractFloat, train::Train)
# equation is based on a combination of the equations of Strahl and Sauthoff [Wende:2003, page 153] with more detailled factors (Lehmann, page 135)
function calcFreightWagonsResistance(v::AbstractFloat, train::Train)
# equation is based on a combination of the equations of Strahl and Sauthoff [Wende:2003, page 153]
f_Rw0 = train.f_Rw0 # coefficient for basic resistance of the set of wagons (consist) (in ‰)
f_Rw2 = train.f_Rw2 # coefficient fo the consistsr air resistance (in ‰)
m_w = train.m_w # mass of the set of wagons (consist) (in kg)
F_R_wagons = m_w *g *(f_Rw0/1000 + f_Rw2/1000 * (v /v00)^2) # vehicle resistance of freight wagons (in N) with Strahl # /1000 because of the unit ‰
# TODO: use calcForceFromCoefficient? F_R_wagons = calcForceFromCoefficient(f_Rw0, m_w) + ...
return F_R_wagons
end #function calcWagonsResistance
"""
TODO
calculate and return the passenger wagons' vehicle resistance dependend on the velocity
"""
function calcPassengerWagonsResistance(v::AbstractFloat, train::Train)
# equation is based on the equations of Sauthoff [Wende:2003, page 153]
f_Rw0 = train.f_Rw0 # coefficient for basic resistance of the set of wagons (consist) (in ‰)
f_Rw1 = train.f_Rw1 # coefficient for the consists resistance to rolling (in ‰)
f_Rw2 = train.f_Rw2 # coefficient fo the consistsr air resistance (in ‰)
m_w = train.m_w # mass of the set of wagons (consist) (in kg)
F_R_wagons = m_w *g *(f_Rw0/1000 + f_Rw1/1000 *v /v00 + f_Rw2/1000 * ((v + Δv_air) /v00)^2) # vehicle resistance of the wagons (in N) # /1000 because of the unit ‰
# TODO: use calcForceFromCoefficient? F_R_wagons = calcForceFromCoefficient(f_Rw0, m_w) + calcForceFromCoefficient(f_Rw1, m_w) *v /v00 + calcForceFromCoefficient(f_Rw2, m_w) * ((v + Δv_air) /v00)^2 # vehicle resistance of the wagons (in N)
F_R_wagons = m_w *g *(f_Rw0/1000 + f_Rw1/1000 *v /v00 + f_Rw2/1000 * ((v + Δv_air) /v00)^2) # vehicle resistance of passenger wagons (in N) with Sauthoff # /1000 because of the unit ‰
# TODO: use calcForceFromCoefficient? F_R_wagons = calcForceFromCoefficient(f_Rw0, m_w) + ...
return F_R_wagons
end #function calcWagonsResistance