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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /764/CH4/EX4.5.b | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '764/CH4/EX4.5.b')
| -rwxr-xr-x | 764/CH4/EX4.5.b/result4_5.txt | 36 | ||||
| -rwxr-xr-x | 764/CH4/EX4.5.b/solution4_5.sce | 63 |
2 files changed, 99 insertions, 0 deletions
diff --git a/764/CH4/EX4.5.b/result4_5.txt b/764/CH4/EX4.5.b/result4_5.txt new file mode 100755 index 000000000..5f7cffaa2 --- /dev/null +++ b/764/CH4/EX4.5.b/result4_5.txt @@ -0,0 +1,36 @@ +-->//(Design against Static Load) Example 4.5
+
+-->//Tensile force acting on the rods P (N)
+
+-->P = 50000
+ P =
+
+ 50000.
+
+-->//Tensile yield strength for 30C8 material Syt (N/mm2)
+
+-->Syt = 400
+ Syt =
+
+ 400.
+
+-->//Factor of safety fs
+
+-->fs = 5
+ fs =
+
+ 5.
+
+
+Diameter of rods(D) = 30.000000 mm
+
+Enlarged diameter of rods(D1) = 33.000000 mm
+
+Dimensions of a and b are 25.000000 mm and 40.000000 mm respectively
+
+Diameter of pin(d) = 40.000000 mm
+
+Dimensions of d0 and d1 are 80.000000 mm and 60.000000 mm respectively
+
+Design of knuckle joint is safe
+
\ No newline at end of file diff --git a/764/CH4/EX4.5.b/solution4_5.sce b/764/CH4/EX4.5.b/solution4_5.sce new file mode 100755 index 000000000..64726a76c --- /dev/null +++ b/764/CH4/EX4.5.b/solution4_5.sce @@ -0,0 +1,63 @@ +
+//Function to round-up a value such that it is divisible by 5
+function[v] = round_five(w)
+ v = ceil(w)
+ rem = pmodulo(v,5)
+ if (rem ~= 0)
+ v = v + (5 - rem)
+ end
+endfunction
+
+//Obtain path of solution file
+path = get_absolute_file_path('solution4_5.sce')
+//Obtain path of data file
+datapath = path + filesep() + 'data4_5.sci'
+//Clear all
+clc
+//Execute the data file
+exec(datapath)
+//Refer Fig.4.24
+//Permissible stresses (N/mm2)
+//Tensile stress sigmat
+sigmat = Syt/fs
+//Compressive stress
+sigmac = Syt/fs
+//Yield strength in shear for the material Ssy (N/mm2)
+Ssy = (50/100)*Syt
+//Shear stress tau
+tau = Ssy/fs
+//Calculate diameter of the rods D (mm)
+D = sqrt((4 * P)/(%pi * sigmat))
+D = round_five(D)
+//Calculate enlarged diameter of rods D1 (mm)
+D1 = 1.1 * D
+//Calculate dimensions a and b (mm)
+a = 0.75 * D
+a = round_five(a)
+b = 1.25 * D
+b = round_five(b)
+//Calculate diameter of pin d
+d = ((32/(%pi * sigmat))*((P/2)*((b/4) + (a/3))))^(1/3)
+d = round_five(d)
+//Calculate dimensions d0 and d1
+d0 = 2 * d
+d1 = 1.5 * d
+//Print results
+printf('\nDiameter of rods(D) = %f mm\n',D)
+printf('\nEnlarged diameter of rods(D1) = %f mm\n',D1)
+printf('\nDimensions of a and b are %f mm and %f mm respectively\n',a,b)
+printf('\nDiameter of pin(d) = %f mm\n',d)
+printf('\nDimensions of d0 and d1 are %f mm and %f mm respectively\n',d0,d1)
+//Check for stresses in eye
+s1 = (P/(b * (d0 - d)))
+c1 = (P/(b * d))
+t1 = (P/(b * (d0 - d)))
+//Check for stresses in fork
+s2 = (P/(2 * a * (d0 - d)))
+c2 = (P/(2 * a * d))
+t2 = (P/(2 * a * (d0 - d)))
+if ((s1<sigmat) & (c1<sigmac) & (t1<tau) & (s2<sigmat) & (c2<sigmac) & (t2<tau))
+ printf('\nDesign of knuckle joint is safe\n')
+else
+ printf('\nDesign of knuckle joint is not safe\n')
+end
\ No newline at end of file |