diff options
Diffstat (limited to '1205/CH8/EX8.7')
| -rw-r--r-- | 1205/CH8/EX8.7/S_8_7.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/1205/CH8/EX8.7/S_8_7.sce b/1205/CH8/EX8.7/S_8_7.sce new file mode 100644 index 000000000..ee1ffb6e7 --- /dev/null +++ b/1205/CH8/EX8.7/S_8_7.sce @@ -0,0 +1,18 @@ +clc;
+T1=400;//N, Force on free end of hawser
+T2=25;//kN, Force on other end of hawser
+T2=T2*1000;//N, conversion
+
+//a, coefficient of friction
+bta=2*2*%pi;//rad, angle of contact, 2 turns
+//By equation 8.13
+us=log(T2/T1)/bta;// Co-efficient of static friction
+printf("Coefficient of static friction between hawser and ballard is us= %0.3f \n",us);
+
+//Number of wraps when tension in hawser=75 kN
+T2=75;//kN, Tension in hawser
+T2=T2*1000;//N, conversion into N
+bta=log(T2/T1)/us;//rad, angle of contact
+//One turn = 2* pi angle, bta corresponds to
+turns=bta/(2*%pi);//Number of turns
+printf("Number of wraps when tension in hawser=75 kN are %.2f \n",turns);
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