public static IEnumerable <WP.Paragraph> CalculateForceMoment(Bar bar, float Ry)
{
var report = new List <WP.Paragraph>();
var section = bar.Section;
var ecc = bar.ActualMoment / Math.Abs(bar.ActualForce) * 100;
report.Add(FormulaCreator.GenerateParagraphWithText($"Эксцентриситет:"));
report.Add(FormulaCreator.EccentricityParagraph(bar, ecc));
var m = ecc * section.Area / section.SectionModulusX;
report.Add(FormulaCreator.GenerateParagraphWithText($"Относительный эксцентриситет:"));
report.Add(FormulaCreator.ReffEccentricityParagraph(bar, ecc, m));
var lambda_x = bar.Length / section.RadiusOfGyrationX / 10;
report.Add(FormulaCreator.GenerateParagraphWithText("Гибкость стержня: "));
report.Add(FormulaCreator.LambdaParagraph(bar, lambda_x));
var lambda_x_ref = lambda_x * (float)Math.Sqrt(Ry / E);
report.Add(FormulaCreator.GenerateParagraphWithText("Условная гибкость стержня: "));
report.Add(FormulaCreator.LambdaRefParagraph(lambda_x, lambda_x_ref, Ry, E));
var af_aw = section.Width / 2F / section.Height;
report.Add(FormulaCreator.GenerateParagraphWithText("Коэффициент η определяем по таблице 73 в зависимости от относительного эксцентриситета m, условной гибкости стержня и отношении площади полок к площади стенок сечения:"));
report.Add(FormulaCreator.AreaFractionParagraph(bar, af_aw));
var etta = Etta(af_aw, lambda_x_ref, m, bar);
report.Add(FormulaCreator.GenerateParagraphWithText($"η = {etta}"));
var mef = m * etta;
report.Add(FormulaCreator.GenerateParagraphWithText("Приведенный относительный коэффициент: "));
report.Add(FormulaCreator.MefParagraph(m, etta, mef));
var fie = GetFie(lambda_x_ref, mef);
report.Add(FormulaCreator.GenerateParagraphWithText($"По таблице 74 СНиП II-23-81* определяем коэффициент φe: {fie}"));
bar.CalcResult = Math.Abs(bar.ActualForce) / bar.Section.Area / Ry * 100 / fie;
report.Add(FormulaCreator.GenerateParagraphWithText($"Проверка стержня на потерю устойчивости в плоскости:"));
report.Add(FormulaCreator.GenerateParagraphWithAxialCompressionFormula(bar, Ry, fie, true));
bar.CalcType = "расчет на в/ц сжатие";
return(report);
}
public static float Etta(float af_aw, float lambda_ref, float m, Bar bar)
{
if (lambda_ref <= 5 && lambda_ref >= 0)
{
if (m <= 5 && m >= 0.1)
{
var af_aw_025 = (1.45F - 0.05F * m) - 0.01F * (5 - m) * lambda_ref;
var af_aw_05 = (1.75F - 0.1F * m) - 0.02F * (5 - m) * lambda_ref;
var af_aw_10 = (1.9F - 0.1F * m) - 0.02F * (6 - m) * lambda_ref;
float k, b;
if (af_aw <= 0.5)
{
GetCoefficients(0.25F, af_aw_025, 0.5F, af_aw_05, out k, out b);
return(k * af_aw + b);
}
GetCoefficients(0.5F, af_aw_05, 1F, af_aw_10, out k, out b);
return(k * af_aw + b);
}
if (m > 5 && m <= 20)
{
var af_aw_025 = 1.2F;
var af_aw_05 = 1.25F;
var af_aw_10 = 1.4F - 0.02F * lambda_ref;
float k, b;
if (af_aw <= 0.5)
{
GetCoefficients(0.25F, af_aw_025, 0.5F, af_aw_05, out k, out b);
return(k * af_aw + b);
}
GetCoefficients(0.5F, af_aw_05, 1F, af_aw_10, out k, out b);
return(k * af_aw + b);
}
throw new ArithmeticException($"m coefficient is suspicious (m = {m} in bar {bar.BarNumber}). Change initial data");
}
if (lambda_ref > 5)
{
var af_aw_025 = 1.2F;
var af_aw_05 = 1.25F;
var af_aw_10 = 1.3F;
float k, b;
if (af_aw <= 0.5)
{
GetCoefficients(0.25F, af_aw_025, 0.5F, af_aw_05, out k, out b);
return(k * af_aw + b);
}
GetCoefficients(0.5F, af_aw_05, 1F, af_aw_10, out k, out b);
return(k * af_aw + b);
}
throw new ArithmeticException($"Incorrect Labmda refference coefficient (l_ref = {lambda_ref}). Change initial data");
}
public static IEnumerable <WP.Paragraph> CalculateForce(Bar bar, float Ry)
{
var report = new List <WP.Paragraph>();
var lambda = bar.Length / bar.Section.RadiusOfGyrationX / 10;
report.Add(FormulaCreator.GenerateParagraphWithText("Гибкость стержня: "));
report.Add(FormulaCreator.LambdaParagraph(bar, lambda));
var lambdaRef = lambda * (float)Math.Sqrt(Ry / E);
report.Add(FormulaCreator.GenerateParagraphWithText("Условная гибкость стержня: "));
report.Add(FormulaCreator.LambdaRefParagraph(lambda, lambdaRef, Ry, E));
float fi;
if (lambdaRef > 0 && lambdaRef <= 2.5)
{
fi = (float)(1 - (0.073 - 5.53 * Ry / E) * (float)Math.Pow(lambdaRef, 1.5));
}
else if (lambdaRef > 2.5 && lambdaRef <= 4.5)
{
fi = (float)(1.47 - 13 * Ry / E - (0.371 - 27.3 * Ry / E) * lambdaRef +
(0.0275 - 5.53 * Ry / E) * lambdaRef * lambdaRef);
}
else if (lambdaRef > 4.5)
{
fi = 332 / (lambdaRef * lambdaRef * (51 - lambdaRef));
}
else
{
throw new ArgumentException($"Incorrect lambda ref coefficient = {lambdaRef} in bar {bar.ElementType} - {bar.BarNumber}");
}
report.Add(FormulaCreator.GenerateParagraphWithText($"По таблице 72 СНиП II-23-81* определяем коэффициент φ: {fi}"));
report.Add(FormulaCreator.GenerateParagraphWithText($"Проверка стержня на потерю устойчивости:"));
bar.CalcResult = Math.Abs(Math.Abs(bar.ActualForce) / bar.Section.Area / fi / Ry * 100);
report.Add(FormulaCreator.GenerateParagraphWithAxialCompressionFormula(bar, Ry, fi, false));
bar.CalcType = "расчет на сжатие";
return(report);
}
