48 lines
1.9 KiB
C#
48 lines
1.9 KiB
C#
using StructureHelperCommon.Infrastructures.Exceptions;
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using StructureHelperCommon.Models;
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using StructureHelperCommon.Models.Loggers;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace StructureHelperLogics.NdmCalculations.Buckling
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{
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public class DeltaELogicSP63 : IConcreteDeltaELogic
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{
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const double deltaEMin = 0.15d;
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const double deltaEMax = 1.5d;
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readonly double eccentricity;
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readonly double size;
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public IShiftTraceLogger? TraceLogger { get; set; }
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public DeltaELogicSP63(double eccentricity, double size)
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{
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if (size <= 0 )
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{
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TraceLogger?.AddMessage(string.Format("Height of cross-section is less or equal to zero, h = {0}", size));
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throw new StructureHelperException(ErrorStrings.SizeMustBeGreaterThanZero + $", actual size: {size}");
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}
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this.eccentricity = eccentricity;
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this.size = size;
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}
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public double GetDeltaE()
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{
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TraceLogger?.AddMessage(LoggerStrings.CalculatorType(this), TraceLogStatuses.Service);
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TraceLogger?.AddMessage(string.Format("Eccentricity e = {0}", eccentricity));
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TraceLogger?.AddMessage(string.Format("Height h = {0}", size));
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var deltaE = Math.Abs(eccentricity) / size;
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string message = string.Format("Relative eccentricity DeltaE = eccentricity / height = {0} / {1} = {2} (dimensionless)", eccentricity, size, deltaE);
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TraceLogger?.AddMessage(message);
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deltaE = Math.Max(deltaE, deltaEMin);
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deltaE = Math.Min(deltaE, deltaEMax);
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TraceLogger?.AddMessage(string.Format("But not less than {0}, and not greater than {1}", deltaEMin, deltaEMax));
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TraceLogger?.AddMessage(string.Format("Relative eccentricity DeltaE = {0}", deltaE));
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return deltaE;
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}
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}
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}
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