Title |
Lingių, pagamintų iš kompozitinių medžiagų, tyrimas / |
Translation of Title |
Research of composite leaf spring. |
Authors |
Mikalkevičius, Gediminas |
Full Text |
|
Pages |
63 |
Keywords [eng] |
leaf spring ; glass fiber reinforced plastic ; composite materials ; beams deflection |
Abstract [eng] |
The aim of the research was to determine deflections of fiber glass leaf spring depending on these parameters: form of the leaf spring, number of leafs in spring and contact between spring leafs (comparing springs with lubricated and non-lubricated leaf surfaces). Primarily, the mechanical properties and surface friction coefficient of the fiber glass was measured to get enough information about material used for the study. According selected leaf spring geometry, samples of fiber glass leaf springs were made. Stiffness of these samples was determined during bending tests. Finite element method and analytical formulas was also used to evaluate accuracy of experimental results. Experimentally found, that leaf springs with less uneven form has a greater stiffness. Also found that twice reduced number of leaf spring sheets (and doubled sheet thickness) resulted from 2,86 to 3,44 times greater leaf spring stiffness. Noted, that lubrication influence decreases when increases load on leaf spring and decreases number of spring sheets. |
Dissertation Institution |
Kauno technologijos universitetas. |
Type |
Master thesis |
Language |
Lithuanian |
Publication date |
2016 |