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Due to the demands of the market, high density and low profile packaging options of small packaging are continuously developed. As high density packaging technologies such as Molded Underfill (MUF) on flip chip package are usually used due to its simplification of assembly process steps and the saving of the cost. For MUF process, in order to ensure void free package, it is often constructed a vacuum...
This paper is focused on the development of an effective method to optimization inversion on constitutive model parameters of bird material in the numerical simulation of bird impact on an aircraft windshield. The experiments of bird impact on a plate under the velocity of 170m/s were performed and the displacements as well as the strains of the plate were measured. The Murnaghan Equation of State...
This paper mainly describes a PC-based Brake-By-Wire Hardware-In-Loop-simulation Bench which has high efficiency and applicability. System architecture, hardware configuration, and software model of this bench are presented in details. The electric braking controllers collect, process and transfer all kinds of information, and generate simultaneous control codes according to the control algorithm,...
This paper mainly describes a PC-based Brake-By-Wire Hardware-In-Loop-simulation Bench which has high efficiency and applicability. System architecture, hardware configuration, and software model of this bench are presented in details. The electric braking controllers collect, process and transfer all kinds of information, and generate simultaneous control codes according to the control algorithm,...
Three-dimension dynamic differential heat conduction equation without inner heat source was used to describe heat transfer through underground building envelope. Then a two-dimension dynamic model was established by suitable simplification without considering heavy underground water. In this paper, in order to verify the model, MATLAB is chosen as the tool to simulate the heat transfer through envelope...
The abilities of synthesized function, intelligent control and health monitor for airborne utilities are becoming more and more important by which all the systems work efficiently and coordinately can be ensured. avionics and other systems work in order. This paper works over several items about UMS by introducing updated simulation framework and redundancy and fault tolerance. In order to obtain...
Considering the characteristics of time delay, time variables and variable operation condition in process control system, The partial models are built based on the different operating points integrating fuzzy membership function with weighted sums to improve the traditional internal model control(IMC), and the fuzzy membership functions are obtained by recursion identification method. Then multiple...
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