用神经网络对柴油机振动主动控制的试验研究

将神经网络技术应用于柴油机振动主动隔离，构造了一种振动主动控制(AVC)系统，并采用液压执行机构在柴油机双层隔振试验台上进行试验研究．结果表明，将神经网络控制技术用于振动主动控制具有一定的可行性，在某些主要频率下振动可衰减8dB左右．     

Effect of Fibre Packing on Random Variability of Compressive Strength of Unidirectional Carbon Fibre Reinforced Plastic

Compression tests on twenty unidirectional(UD) carbon fibre reinforced plastic(CFRP) specimens are conducted, the statistics on the measured compressive strength is calculated, and the fracture surface is characterized. Two types of different fracture surface are experimentally observed, and they are corresponding to very different values on the compressive strength. A finite element(FE) analysis is conducted to investigate the influence of random fibre packing on the compressive strength. And a riks method(provided in ABAQUS software) is applied in FE model to analyze fibre buckling behaviour in the vicinity of compressive failure. The FE analysis agrees well with the experimental observation on the two types of buckling modes and also the partition of compressive strength. It is clearly shown that the random fibre packing lays a significant influence on the random variability of compressive strength of CFRP.     

模糊控制在选煤厂干燥过程中的应用

介绍了微机模糊控制在选煤厂干燥过程中的应用。仿真结果表明，带有参数自调整的模糊控制器响应速度快，稳态精度高。