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EN
This paper is a summary of the design and workmanship of a Formula Student transmission system vehicle. We conducted simulation research on transmission system damage. Damage occurred during the Formula Student competition, which is why we needed to improve the drivetrain system. The article proposes a variant of the change brackets and carrying out simulation studies on the new construction. For selected models, the transmission system, which is also determined by its impact on strength and reliability, is driven by a four-cylinder engine with a displacement of 0.6 dm3.
EN
This paper is a summary of the design and workmanship of the formula student engine intake vehicle, for simulation research projects were conducted on the intake system. In the process, the most favourable model system was selected, which was capable of producing a satisfactory range of the characteristics of the engine. For chosen models, the intake system was also determined in terms of its impact on the power and torque of the test vehicle, which was driven by a four-cylinder engine with a displacement of 0.6 dm3 .
EN
This-paper deals with the second-order CH of a heterogeneous material undergoing small displacements. Typically, in this approach an RVE of a heterogeneous material is investigated. A given discretized microstructure is determined a priori, without focusing on details of specific discretization techniques. Application of BNN as a tool for identification of characteristic length of a microstructure is discussed. An indentation test was analyzed under plane strain constraints for generating pseudo-experimental patterns by means of FEM. A single input of BNN was formulated due to the application of PCA. The BNN of structure 1-16-1 with sigmoid hidden neurons was designed. The Bayesian inference approach was applied to obtain pdf of the characteristic length. Numerical efficiency of the proposed approach is demonstrated in the paper.
PL
Rozwój elektroniki spowodował, że układy automatyzacji procesów technologicznych stały się powszechne w użytkowaniu. W układach sterowania coraz częściej są stosowane sterowniki PLC. Wyperają one dotychczas wykorzystywane szafy sterowania wyposażone w dużą liczbę styczników i przekaźników.
PL
Podstawowym zadaniem osprzętu kablowego jest łączenie i zakańczanie odcinków kabli. Do połączenia dwóch odcinków kabli stosuje się mufę. W celu nie dopuszczenia do przedostania się do kabla wilgoci zakańcza się go głowicą. Przy doborze osprzętu kablowego należy zwrócić uwagę na warunki, w jakich dany osprzęt jest eksploatowany, rodzaj i budowę kabla, wartości napięcia znamionowego, rodzaj izolacji kabla oraz jego zewnętrznej powłoki, a także średnicę zewnętrzną kabla.
8
Content available remote Thin layer shear and second order homogenization method
EN
This paper deals with the second-order computational homogenisation of a heterogeneous materiał under-going smali displacements. Typically, in this approach a representative volume element (RVE) of nonlinear heterogeneous materiał is defined. An a priori given discretised microstructure is considered, without fo-cusing on detailed specific discretisation techniąues. The key contribution of this paper is the formulation of eąuations coupling micro- and macro-variables and the definition of generalized boundary conditions for the microstructure. The coupling between macroscopic and microscopic levels is based on Hill's aver-aging theorem. We focus on deformation-driven microstructures where overall macroscopic deformation is controlled. In the end a numerical example of a thin layer shear is presented.
14
Content available remote Neural procedures for the hybrid FEM/NN analysis of elastoplatic plates
EN
A neural procedure was formulated in [4] as BPNN (Back-Propagation Neural Networks) for the simulation of generalized RMA (Return Mapping Algorithm). This procedure was evaluated to be too large to make a corresponding hybrid FEM/BPNN numerically efficient. That is why two new procedures NPI and NP2 were formulated. A description of their efficiency is presented in the paper, related to the computation number of computer operations and CPU time, carried out by FEM program FEAP and two hybrid programs FEAP/NP1 and FEAP/NP2.
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