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77 lines
2.3 KiB
77 lines
2.3 KiB
{
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"TopologyOptimizationExample": "BiclampedStructure","//": "USER DEFINED project name",
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"material": {
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"E": 2.1e11, "//": "Young's modulus",
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"poisson_ratio": 0.3, "//": "Poisson's ratio",
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"thermal_conductivity":43, "//unit": "W/(m*K)",
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"thermal_expansion_coefficient": 1.21e-5, "//unit": "1/K"
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},
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"topology": {
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"max_loop": 150,"//": "Maximum number of iterations for topology optimization",
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"volfrac": 0.4,"//": "0~1, Volume ratio restriction",
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"penal": 3.0,"//": "Useless",
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"r_min": 1.05,"//": "Convolution kernel size, less than 1 will result in checkerboard phenomenon",
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"T_ref": 312,"//": "K, Reference/Environment temperature",
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"T_limit": 400,"//": "K, Maximum temperature limit in optimization",
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"R_E": 28,"//": "1~28, The higher the value, the closer the density is to 0 or 1",
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"R_lambda": 28,"//": "1~28, The higher the value, the closer the density is to 0 or 1",
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"R_beta":0,"//": "Useless"
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},
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"model": {
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"regular_model": {
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"lx": 1,"//": "A lx * ly * lz rectangle",
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"ly": 30,
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"lz": 20
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}
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},
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"mechanical_boundary_condition":{ "//": "A [min[0],max[0]] * [min[1],max[1]] * [min[2],max[2]] rectangle boundary",
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"//": "NBC: Neumann boundary condition; DBC: Dirichlet boundary condition",
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"NBC": [
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{
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"min": [0, 0.5, 0.5],"//": "0~1, A [min[0],max[0]] line, because y and z are the same",
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"max": [1, 0.5, 0.5],"//": "0~1",
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"val": [0.0, 0.0, -1e8],"//": "Pa, The z direction is subject to a -1e8 load"
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}
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],
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"DBC": [
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{
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"min": [0, 0, 0],
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"max": [1, 0, 1],
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"dir": [1, 1, 1],"//": "0 or 1, indicates whether xyz directions are fixed"
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},
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{
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"min": [0, 1, 0],
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"max": [1, 1, 1],
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"dir": [1, 1, 1]
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}
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]
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},
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"thermal_boundary_condition": {
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"NBC": [
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{
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"min": [0, 0.2, 0.5],
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"max": [1, 0.2, 0.5],
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"heat_flux": 3.35, "//": "W, >=0"
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},
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{
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"min": [0, 0.8, 0.5],
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"max": [1, 0.8, 0.5],
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"heat_flux": 3.35, "//": "W, >=0"
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}
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],
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"DBC": [
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{
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"min": [0, 0, 0],
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"max": [1, 1, 0],
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"temperature": 312, "//": "K, fixed temperature in DBC"
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},
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{
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"min": [0, 0, 1],
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"max": [1, 1, 1],
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"temperature": 312, "//": "K"
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}
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]
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}
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}
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