4.1. FORWARD This chapter is included the experimental aspects that concerned with current work. A description is indicated for a scaled structure fabricated for the case study. An experimental simulation to the deceleration of the fuel tank with varies oil levels is presented with dynamic test using vibration system analysis. Also amounted test to the scaled structure is also indicated in this chapter. 4.2. SCALED STRUCTURE A scaled structure Have been manufactured using sheet metal of 0.5 mm. the dimensions of the fuel tank were obtained by visiting Oil Products Distribution Company in Babylon and obtaining measurements tank type (Serin/Turkish-made) as shown in figure and the table (4-1).
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.
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
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.
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