| Title |
Biokuro tiekimo platformos hidraulinių cilindrų gedimų analizė ir konstrukcijos optimizavimas / |
| Translation of Title |
Failure analysis and design optimization of the hydraulic cylinders of biofuel supply platform. |
| Authors |
Kriščiūnas, Darius |
| Full Text |
|
| Pages |
51 |
| Keywords [eng] |
biofuel supply platform ; hydraulic cylinder ; cyclic fatigue |
| Abstract [eng] |
Master's thesis reviewed the biofuel supply platform composition and operation principle. Identified and described stress concentration locations in hydraulic cylinders of the biofuel supply platform, in which may lead to cyclic fatigue. Overview of Fracture Mechanics criteria on which based possible to evaluate the cracks in the structure. Figure out the finite element mesh creation requirements of the crack tip. The analysis the materials which use of hydraulic cylinder construction. The calculated threshold stress intensity factor of which crack may begin to grow. In the research, was investigated of three different hydraulic cylinder design areas. The two of them assessed Fracture Mechanic criteria. Calculate the maximum stress of cylinder at the drilled hole which is closer to the back cover. Was found after how many cycles may occur cyclic fatigue. Based on the stress intensity factor calculated welding groove depth, which is located between the back ear and the cylinder rod. Calculate stress intensity factor of the weld root at the back cover and pipe. Estimated durability. Was made model parametric analysis, which aims to increase the durability of it. Submitted new model of construction which will reduce the costs of the potential biofuel supply platform hydraulic cylinder failure. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2015 |
