75 lines
2.4 KiB
Julia
75 lines
2.4 KiB
Julia
@testset "Phase" begin
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println("Testing NLP solver")
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using SNOW, PlotlyJS
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# First we'll test an Earth case
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# Initial Setup
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T = rand( 8hour : second : day )
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revs = 8
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n = 10 * revs
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start_mass = 10_000.
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# A simple orbit raising
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start = gen_orbit(T, start_mass, Earth)
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thrust = spiral(0.9, n, start, test_sc, revs*T, Earth)
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final = prop(thrust, start, test_sc, revs*T, Earth)[2]
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new_T = 2π * √( xyz_to_oe(final, Earth.μ)[1]^3 / Earth.μ )
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# This should be close enough to converge, but Earth orbits are picky
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thrust_guess = spiral(0.89, n, start, test_sc, revs*T, Earth)
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guess_final = prop(thrust_guess, start, test_sc, revs*T, Earth)[2]
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result = solve_phase(start, final, test_sc, revs*T, thrust_guess, Earth, verbose=true)
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calc_path, calc_final = prop(result.sol, start, test_sc, revs*T, Earth, interpolate=true)
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# Test
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@test norm(guess_final[1:6] - final[1:6]) > 1e-4
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@test result.converged
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@test norm(calc_final[1:6] - final[1:6]) < 1e-4
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# Plot
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paths = Pathlist()
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push!(paths, prop(start, T, Earth),
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calc_path,
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prop(calc_final, T, Earth),
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prop(final, T, Earth) )
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fig = plot_orbits(paths, Earth,
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labels=["init", "transit", "post-transit", "final"],
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colors=["#FFF","#F44","#4F4","#44F"])
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savefig(fig, "../plots/nlp_test_earth.html")
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# Now the sun case
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T = rand( 0.5year : hour : 1.5year )
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tof = 0.7T
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n = 20
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start_mass = 12_000.
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# A simple orbit raising again, to keep things simple
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start = gen_orbit(T, start_mass)
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thrust = spiral(0.6, n, start, bepi, tof)
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final = prop(thrust, start, bepi, tof)[2]
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new_T = 2π * √( xyz_to_oe(final, Sun.μ)[1]^3 / Sun.μ )
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# This should be close enough to converge
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thrust_guess = spiral(0.55, n, start, bepi, tof)
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guess_final = prop(thrust_guess, start, bepi, tof)[2]
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result = solve_phase(start, final, bepi, tof, thrust_guess, verbose=true)
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calc_path, calc_final = prop(result.sol, start, bepi, tof, interpolate=true)
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# Test
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@test norm(guess_final[1:6] - final[1:6]) > 1e-4
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@test result.converged
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@test norm(calc_final[1:6] - final[1:6]) < 1e-4
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# Plot
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paths = Pathlist()
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push!(paths, prop(start, T), calc_path, prop(calc_final, T), prop(final, T) )
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fig = plot_orbits(paths,
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labels=["init", "transit", "post-transit", "final"],
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colors=["#FFF","#F44","#4F4","#44F"])
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savefig(fig, "../plots/nlp_test_sun.html")
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end
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