private void button3_Click(object sender, EventArgs e)
{
if (layerNum == 0)
{
MessageBox.Show("请先输入截面几何性质数据", "error");
}
//
//圆形截面
//
else if (shape == "圆形截面")
{
Form5 inputm = new Form5(this.Location.X + 50, this.Location.Y + 50);
inputm.ShowDialog();
//b——截面宽 y——截面形心位置（以第一个截面上面为坐标原点）
//h——截面高 Yc——整个等效截面图的形心
//E——截面弹性模量 Sq——形心坐标与面积的积的和
//S——截面面积 S1——总面积
//I——截面抗弯截面系数
//输入变量
double[] h = new double[layerNum];
//中间变量
double [] Mi = new double [layerNum], EI = new double[layerNum];
double EIz = 0;
//输出变量
double[] I = new double[layerNum];
double[,] P = new double[layerNum, 2];
double[,] Q = new double[layerNum, 2];
//排序
double t = 0;
for (int j = 0; j < layerNum - 1; j++)
{
for (int i = 0; i < layerNum - 1; i++)
{
if (layersHeight[i] > layersHeight[i + 1])
{
t = layersHeight[i]; layersHeight[i] = layersHeight[i + 1]; layersHeight[i + 1] = t;
t = layersE[i]; layersE[i] = layersE[i + 1]; layersE[i + 1] = t;
}
}
}
//计算等截面抗弯界面系数
I[0] = 3.1415926 / 64 * (layersHeight[0] * layersHeight[0] * layersHeight[0] * layersHeight[0]);
for (int i = 1; i < layerNum; i++)
{
I[i] = 3.1415926 / 64 * (Math.Pow(layersHeight[i], 4) - Math.Pow(layersHeight[i - 1], 4));
}
//计算每个截面的EI
for (int i = 0; i < layerNum; i++)
{
EI[i] = layersE[i] * I[i];
EIz = EIz + EI[i];
}
//计算每个截面的Mi
for (int k = 0; k < layerNum; k++)
{
Mi[k] = layersM / EIz * EI[k];
}
//正应力计算
for (int i = 0; i < layerNum; i++)
{
P[i, 0] = Mi[i] * layersHeight[i] / 2 / I[i] / 1000000;
P[i, 1] = -Mi[i] * layersHeight[i] / 2 / I[i] / 1000000;
}
Q[0, 0] = 0;
Q[0, 1] = 0;
for (int i = 1; i < layerNum; i++)
{
Q[i, 0] = Mi[i] * layersHeight[i - 1] / 2 / I[i] / 1000000;
Q[i, 1] = -Mi[i] * layersHeight[i - 1] / 2 / I[i] / 1000000;
}
//输出图形
int temp2 = 0;
int temp3 = 0;
Graphics pic1 = panel1.CreateGraphics();
pic1.Clear(Color.White);
for (ii = 0; ii < layerNum; ii++)
{
int temp = (int)(150 * layersHeight[layerNum - ii - 1] / layersHeight[layerNum - 1]);
temp2 = 85 - temp / 2;
temp3 = 100 - temp / 2;
switch (ii % 5)
{
case 0:
pic1.FillEllipse(Brushes.DarkGray, temp2, temp3, temp, temp); break;
case 1:
pic1.FillEllipse(Brushes.LimeGreen, temp2, temp3, temp, temp); break;
case 2:
pic1.FillEllipse(Brushes.Blue, temp2, temp3, temp, temp); break;
case 3:
pic1.FillEllipse(Brushes.Orchid, temp2, temp3, temp, temp); break;
case 4:
pic1.FillEllipse(Brushes.MediumPurple, temp2, temp3, temp, temp); break;
default:
break;
}
}
Pen p = new Pen(Color.Red, 2);
p.DashPattern = new float[] { 2, 1 };
pic1.DrawLine(p, 5, 100, 165, 100);
//绘图
{
double t1;
t1 = Math.Abs(P[0, 0]);
for (int i = 0; i < Form1.layerNum; i++)
{
if (Math.Abs(P[i, 0]) > t1)
{
t1 = Math.Abs(P[i, 0]);
}
}
double k = 100;
Graphics pic3 = panel7.CreateGraphics();
pic3.Clear(Color.White);
Pen p1 = new Pen(Color.Black, 2);
Pen p4 = new Pen(Color.Black, 1);
//坐标轴
pic3.DrawLine(p1, 82, 5, 82, 195);
pic3.DrawLine(p4, 5, 100, 165, 100);
//折线图
Pen p2 = new Pen(Color.Blue, 3);
//填充颜色
k = 100;
for (int i = 0; i < Form1.layerNum; i++)
{
Point[] sbx = new Point[] {
new Point(82, (int)(k)),
new Point((int)(82 + Q[i, 1] / t1 * 75), (int)(k)),
new Point((int)(82 + P[i, 1] / t1 * 75), (int)(k = 100 - 90 * layersHeight[i] / layersHeight[layerNum - 1])),
new Point(82, (int)(k)),
};
pic3.FillPolygon(Brushes.Aquamarine, sbx);
}
//填充颜色
k = 100;
for (int i = 0; i < Form1.layerNum; i++)
{
Point[] sbx = new Point[] {
new Point(82, (int)(k)),
new Point((int)(82 + Q[i, 0] / t1 * 75), (int)(k)),
new Point((int)(82 + P[i, 0] / t1 * 75), (int)(k = 100 + 90 * layersHeight[i] / layersHeight[layerNum - 1])),
new Point(82, (int)(k)),
};
pic3.FillPolygon(Brushes.Aquamarine, sbx);
}
//折线
k = 100;
for (int i = 0; i < layerNum; i++)
{
pic3.DrawLine(p2, (int)(82 + Q[i, 1] / t1 * 75), (int)(k), (int)(82 + P[i, 1] / t1 * 75), (int)(k = 100 - 90 * layersHeight[i] / layersHeight[layerNum - 1]));
}
k = 100;
for (int i = 0; i < layerNum; i++)
{
pic3.DrawLine(p2, (int)(82 + Q[i, 0] / t1 * 75), (int)(k), (int)(82 + P[i, 0] / t1 * 75), (int)(k = 100 + 90 * layersHeight[i] / layersHeight[layerNum - 1]));
}
Pen p5 = new Pen(Color.Black, 2);
p5.DashPattern = new float[] { 2, 2 };
k = 100 - 90 * layersHeight[0] / layersHeight[layerNum - 1];
for (int i = 0; i < layerNum - 1; i++)
{
pic3.DrawLine(p5, (int)(82 + P[i, 1] / t1 * 75), (int)(k), (int)(82 + Q[i + 1, 1] / t1 * 75), (int)(k));
k = 100 - 90 * layersHeight[i + 1] / layersHeight[layerNum - 1];
}
k = 100 + 90 * layersHeight[0] / layersHeight[layerNum - 1];
for (int i = 0; i < layerNum - 1; i++)
{
pic3.DrawLine(p5, (int)(82 + P[i, 0] / t1 * 75), (int)(k), (int)(82 + Q[i + 1, 0] / t1 * 75), (int)(k));
k = 100 + 90 * layersHeight[i + 1] / layersHeight[layerNum - 1];
}
pic3.DrawLine(p5, (int)(82 + P[layerNum - 1, 1] / t1 * 75), 10, 82, 10);
pic3.DrawLine(p5, (int)(82 - P[layerNum - 1, 1] / t1 * 75), 190, 82, 190);
Font font = new Font("宋体", 9f);
PointF pointF = new PointF(82, 10);
PointF pointF1 = new PointF(105, 10);
PointF pointF2 = new PointF(135, 10);
pic3.DrawString("Yc=", font, Brushes.Black, pointF);
pic3.DrawString(Math.Round(layersHeight[layerNum - 1] / 2, 3).ToString(), font, Brushes.Black, pointF1);
pic3.DrawString("(m)", font, Brushes.Black, pointF2);
/*
*
* p1.DashPattern = new float[] { 2, 2 };
* k = 10 + 180 * Form1.layersHeight[0] / layersHeight[layerNum - 1];
* for (int i = 0; i < Form1.layerNum - 1; i++)
* {
* pic3.DrawLine(p1, (int)(82 + P[i, 1] / t * 75), (int)(k), (int)(82 + P[i + 1, 0] / t * 75), (int)(k));
* k = k + 180 * Form1.layersHeight[i] / layersHeight[layerNum - 1];
* }
* pic3.DrawLine(p1, (int)(82 + P[0, 0] / t * 75), 10, 82, 10);
* pic3.DrawLine(p1, (int)(82 + P[layerNum - 1, 1] / t * 75), 190, 82, 190);
* //填充颜色
* k = 10;
* for (int i = 0; i < Form1.layerNum; i++)
* {
* Point[] sbx = new Point[]{
* new Point((int)(82 + P[i, 0] / t * 75),(int)(k)),
* new Point( (int)(82 + P[i, 1] / t * 75), (int)(k = k + 180 *layersHeight[i] / layersHeight[layerNum -1])),
* new Point(82, (int)(k)),
* new Point(82, (int)(k - 180 *layersHeight[i] /layersHeight[layerNum -1]))
* };
* pic3.FillPolygon(Brushes.Aquamarine, sbx);
* }*/
}
//输出正应力值
Form4 WindowsForShow = new Form4(P, this.Location.X, this.Location.Y, I);
WindowsForShow.Show();
}
//矩形截面
else
{
Form5 inputm = new Form5(this.Location.X + 50, this.Location.Y + 50);
inputm.ShowDialog();
int posOfEm = 0;
for (int i = 1; i < layerNum; i++)
{
if (layersE[i] >= layersE[posOfEm])
{
posOfEm = i;
}
}
//b——截面宽 y——截面形心位置（以第一个截面上面为坐标原点）
//h——截面高 Yc——整个等效截面图的形心
//E——截面弹性模量 Sq——形心坐标与面积的积的和
//S——截面面积 S1——总面积
//I——截面抗弯截面系数
//输入变量
double[] b = new double[layerNum];
//中间变量
double[] S = new double[layerNum], y = new double[layerNum];
double Sq = 0, S1 = 0;
//输出变量
double[] I = new double[layerNum];
double[,] P = new double[layerNum, 2];
double Ic = 0;
//计算等效截面宽
for (int i = 0; i < layerNum; i++)
{
b[i] = layerWidth * layersE[i] / layersE[posOfEm];
}
//计算每个截面的形心位置
y[0] = 0.5 * layersHeight[0];
for (int j = 1; j < layerNum; j++)
{
y[j] = 0.5 * layersHeight[j] + y[j - 1] + 0.5 * layersHeight[j - 1];
}
//计算每个截面的面积
for (int k = 0; k < layerNum; k++)
{
S[k] = b[k] * layersHeight[k];
Sq = Sq + S[k];
S1 = S1 + S[k] * y[k];
}
//计算中性面y坐标
Yc = S1 / Sq;
//计算每个截面的抗弯界面系数
for (int i = 0; i < layerNum; i++)
{
I[i] = b[i] * layersHeight[i] * layersHeight[i] * layersHeight[i] / 12 + S[i] * (y[i] - Yc) * (y[i] - Yc);
Ic = Ic + I[i];
}
//正应力计算
for (int i = 0; i < layerNum; i++)
{
P[i, 0] = layersE[i] / layersE[posOfEm] * layersM * (y[i] - 0.5 * layersHeight[i] - Yc) / Ic / 1000000;
P[i, 1] = layersE[i] / layersE[posOfEm] * layersM * (y[i] + 0.5 * layersHeight[i] - Yc) / Ic / 1000000;
}
//输出图形
int temp2 = 0;
Graphics pic1 = panel1.CreateGraphics();
pic1.Clear(Color.White);
for (ii = 0; ii < layerNum; ii++)
{
int temp = (int)(180 * layersHeight[ii] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2));
Rectangle rct = new Rectangle(10, 10 + temp2, 150, temp);
temp2 += temp;
switch (ii % 5)
{
case 0:
pic1.FillRectangle(Brushes.DarkGray, rct); break;
case 1:
pic1.FillRectangle(Brushes.LimeGreen, rct); break;
case 2:
pic1.FillRectangle(Brushes.Blue, rct); break;
case 3:
pic1.FillRectangle(Brushes.Orchid, rct); break;
case 4:
pic1.FillRectangle(Brushes.MediumPurple, rct); break;
default:
break;
}
}
Graphics pic2 = panel2.CreateGraphics();
pic2.Clear(Color.White);
temp2 = 0;
for (ii = 0; ii < layerNum; ii++)
{
int temp = (int)(180 * layersHeight[ii] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2));
Rectangle rct = new Rectangle(82 - (int)(75 * layersE[ii] / layersE[posOfEm]), 10 + temp2, (int)(150 * layersE[ii] / layersE[posOfEm]), temp);
temp2 += temp;
switch (ii % 5)
{
case 0:
pic2.FillRectangle(Brushes.DarkGray, rct); break;
case 1:
pic2.FillRectangle(Brushes.LimeGreen, rct); break;
case 2:
pic2.FillRectangle(Brushes.Blue, rct); break;
case 3:
pic2.FillRectangle(Brushes.Orchid, rct); break;
case 4:
pic2.FillRectangle(Brushes.MediumPurple, rct); break;
default:
break;
}
}
Pen p = new Pen(Color.Red, 2);
p.DashPattern = new float[] { 2, 1 };
pic2.DrawLine(p, 5, (int)(180 * Yc / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)) + 10, 165, (int)(180 * Yc / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)) + 10);
//输出正应力值
Form4 WindowsForShow = new Form4(P, this.Location.X, this.Location.Y, I);
WindowsForShow.Show();
//绘图
{ double t;
t = Math.Abs(P[0, 0]);
for (int i = 0; i < Form1.layerNum; i++)
{
for (int j = 0; j < 2; j++)
{
if (Math.Abs(P[i, j]) > t)
{
t = Math.Abs(P[i, j]);
}
}
}
double k = 10;
Graphics pic3 = panel7.CreateGraphics();
pic3.Clear(Color.White);
Pen p1 = new Pen(Color.Black, 2);
Pen p4 = new Pen(Color.Black, 1);
//坐标轴
pic3.DrawLine(p1, 82, 5, 82, 195);
pic3.DrawLine(p4, 5, (int)(180 * Yc / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)) + 10, 165, (int)(180 * Yc / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)) + 10);
//折线图
Pen p2 = new Pen(Color.Blue, 3);
for (int i = 0; i < Form1.layerNum; i++)
{
pic3.DrawLine(p2, (int)(82 + P[i, 0] / t * 75), (int)(k), (int)(82 + P[i, 1] / t * 75), (int)(k = (k + 180 * Form1.layersHeight[i] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2))));
}
p1.DashPattern = new float[] { 2, 2 };
k = 10 + 180 * Form1.layersHeight[0] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2);
for (int i = 0; i < Form1.layerNum - 1; i++)
{
pic3.DrawLine(p1, (int)(82 + P[i, 1] / t * 75), (int)(k), (int)(82 + P[i + 1, 0] / t * 75), (int)(k));
k = k + 180 * Form1.layersHeight[i] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2);
}
pic3.DrawLine(p1, (int)(82 + P[0, 0] / t * 75), 10, 82, 10);
pic3.DrawLine(p1, (int)(82 + P[layerNum - 1, 1] / t * 75), 190, 82, 190);
//填充颜色
k = 10;
for (int i = 0; i < Form1.layerNum; i++)
{
Point[] sbx = new Point[] {
new Point((int)(82 + P[i, 0] / t * 75), (int)(k)),
new Point((int)(82 + P[i, 1] / t * 75), (int)(k = (k + 180 * layersHeight[i] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)))),
new Point(82, (int)(k)),
new Point(82, (int)(k - 180 * layersHeight[i] / (y[layerNum - 1] + layersHeight[layerNum - 1] / 2)))
};
pic3.FillPolygon(Brushes.Aquamarine, sbx);
//形心轴位置
Font font = new Font("宋体", 9f);
PointF pointF = new PointF(82, 10);
PointF pointF1 = new PointF(105, 10);
PointF pointF2 = new PointF(135, 10);
pic3.DrawString("Yc=", font, Brushes.Black, pointF);
pic3.DrawString(Math.Round(Yc, 3).ToString(), font, Brushes.Black, pointF1);
pic3.DrawString("(m)", font, Brushes.Black, pointF2);
}
}
/* Form6 WindowsForShow1 = new Form6(P, this.Location.X + 50, this.Location.Y + 200);
* WindowsForShow1.Show();*/
}
}
private void callToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Hide();
Form4 frm = new Form4();
frm.ShowDialog();
this.Show();
}
