Modern methods for modelling and analysis of technological processes of car parts and their topological optimization
Journal Title: Autobusy. Technika, Eksploatacja, Systemy Transportowe - Year 2017, Vol 209, Issue 7
Abstract
Paper presents the problem of modelling and analysis of metalworking processes. Technological processes were considered as a geometrical, physical and thermal boundary and initial value problem, with unknown boundary conditions in the contact zone. An incremental model of the contact problem between movable rigid or thermo-elastic body (tool) and thermo-elastic/thermo-visco-plastic-phases body (object) in updated Lagrange formulation, for spatial states (3D) was considered. The incremental functional of the total energy and variational, non-linear equation of motion of object and heat transfer on the typical step time were derived. This equation has been discretized by finite element method, and the system of discrete equations of motion and heat transfer of objects were received. For solution of these equations the explicit or implicit methods was used. The applications were developed in the ANSYS/LS-Dyna system, which makes possible a complex time analysis of the states of displacements, strains and stresses, in the workpieces in fabrication processes. Application of this method was showed for examples the modelling and the analysis of burnishing rolling, thread rolling and turning processes. The numerical result were verified experimentally. The topic of topological optimization of car parts is also presented.
Authors and Affiliations
Leon Kukiełka, Radosław Patyk, Krzysztof Kukiełka, Jarosław Chodór
Keywords
Related Articles
- EP ID EP399459
- DOI -
- Views 50
- Downloads 0
Rozwój komunikacji miejskiej w Polsce w latach 2009–2015
Niniejszy artykuł podsumowuje zmiany w polskiej komunikacji miejskiej w latach 2009–2015 w sferze produktowej oraz oddziaływania. Był to okres intensywnych inwestycji odtworzeniowych i rozwojowych, których duża część był...
Analiza statystyczna parametrów materiałowych zacisków hamulcowych
During the mass production of automotive parts, it is assumed that the dynamic parameters of generated elements are exactly the same. In fact, this is not true. The article presents statistical analysis of material param...
Prędkości rowerzystów na wydzielonych drogach rowerowych
The article presents the results of research on cycling speed on various infrastructure solutions. The measurements were taken in 13 different locations: on road lanes, bicycle counterflow lanes, isolated paths and bus l...
Zmiany poziomu hałasu podczas badań zużyciowych lekkich zaworów rozrządu silnika spalinowego
The scheme of tester for wear studies of valves operating in combustion engine has been presented in this article. The tests have been subjected to lightweight valves made of TiAl alloy. Valve heads have mated with valve...
Ocena możliwości współpracy akumulatora sodowo-siarkowego z silnikiem spalinowym
The article discussed a sodium-sulfur battery. It was characterized the anode, cathode and electrolyte. It was also discussed the configuration of the Na-S battery and factors influencing battery operation. It was analyz...