| Naslov: | CALIBRATION OF A NEW METHOD FOR CREATING IMPERFECTIONS ON SLENDER STRUCTURES : magistrsko delo |
|---|
| Avtorji: | ID Hudales, Simon (Avtor)
ID Vesenjak, Matej (Mentor) Več o mentorju... 
ID Burkhardt, Axel (Komentor) |
|---|
| Datoteke: |  MAG_Hudales_Simon_2022.pdf (5,14 MB)
MD5: E66802517AFCCBB3D6066857ACC4DC3F
PID: 20.500.12556/dkum/61cfe961-9772-4b5b-8737-f48f8ce7e683
|
|---|
| Jezik: | Angleški jezik |
|---|
| Vrsta gradiva: | Magistrsko delo/naloga |
|---|
| Tipologija: | 2.09 - Magistrsko delo |
|---|
| Organizacija: | FS - Fakulteta za strojništvo
|
|---|
| Opis: | For the design of slender structures consisting of plates and tubes, such as supporting structures at cranes, buckling is beside stress and fatigue often the governing failure criteria. Stability analysis of such structures is usually performed using the GMNIA method according to DIN EN 1993. For this purpose, a suitable geometric equivalent imperfection must be applied to the structure. Buckling inherent shapes are determined for this purpose and scaled according to applicable safety concepts. Including imperfections in stability analysis can generally be relevant for the load-bearing behavior of a structure. Within this master thesis work, the influence of the initial geometric imperfection on stability behaviour is investigated.
This study examines the influence, that imperfections imposed on members subjected to tensile stress have on stability behaviour. Tensile members of structures are identified and initial geometric imperfection is imposed on them in addition to critical members, that are subjected to compression stress. It is shown, that including imperfections on tensile members in stability analysis, has only a minor influence on stability behaviour and stiffness of the structure, both reducing it just slightly.
Further on, investigation on boom model, that is supporting structure of the crawler crane, is made. Boom model consist of main chord members and diagonals connecting them. At the joint connection of boom and two diagonal members, one subjected to tension and one subjected to compression stress, appears area of high shear stresses. Influence of the direction, that imperfection is imposed on the diagonal member, and what is the influence on the stability behaviour and structural strength is presented in this work. Most severe case of the two chosen direction is pointed out and discussed. |
|---|
| Ključne besede: | stability analysis, initial geometric imperfections, thin-walled structures, finite element method |
|---|
| Kraj izida: | Maribor |
|---|
| Kraj izvedbe: | Maribor |
|---|
| Založnik: | [S. Hudales] |
|---|
| Leto izida: | 2022 |
|---|
| Št. strani: | 1 elektronski vir (1 datoteka PDF (XIVI, 71 f.)) |
|---|
| PID: | 20.500.12556/DKUM-81847 |
|---|
| UDK: | 62-237:620.179.7(043.2) |
|---|
| COBISS.SI-ID: | 151258371 |
|---|
| Datum objave v DKUM: | 06.07.2022 |
|---|
| Število ogledov: | 761 |
|---|
| Število prenosov: | 71 |
|---|
| Metapodatki: |    |
|---|
| Področja: | KTFMB - FS
|
|---|
|
:
|
Kopiraj citat |
|---|
| | | | Skupna ocena: | (0 glasov) |
|---|
| Vaša ocena: | Ocenjevanje je dovoljeno samo prijavljenim uporabnikom. |
|---|
| Objavi na: |  |
|---|
Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše
podrobnosti ali sproži prenos. |
