Figure …show more content…
Also a truck cabin was mounted on a distance (19 cm) than the front side of the shell as shown in figure (4-4).
Figure (4-4):- Scaled structure.
The scaled structure was fabricated using available Galvanis steel. The mechanical properties where obtained using test in the tensile machine as shown and table (4-2).
Table (4-2):- The mechanical properties.
158 Mpa Yield stress (σy)
218 Mpa Ultimate stress (σult)
0.27 Poisson's ratio (ν)
27 Gpa Modulus of elasticity (E)
Figure (4-5) shows the details of the test specimen and the tensile test machine.
Figure (4-5):- The specimen and machine test.
4.3. SIMULATION OF SUDDEN ACCELERATION/ DECELERATION OF FUEL TANK A simulation had been designed and manufactured to experimentally predict the behavior of the tank shell with various fuel levels under action of sudden acceleration/deceleration. The simulation idea is subjecting the scaled shell to spring force due to its stretching to some distance then released as shown in figure …show more content…
Then its estimated the required stiffness as K= 891 N/m.
4.4. VIBRATION MEASUREMENT The vibration of the tank due to acceleration was measured using experimental vibration system. The experimental vibration system that used is consisting of four accelerometers, vibration analyzer and Lab VIEW