HMB与运动能力

HMB（β-羟基-β丁酸甲酯）是亮氨酸代谢的中间产物，能促进蛋白质合成和减少其分解，使机体力量增加，加快脂肪消耗，延缓肌肉疲劳，有助于提高耐力，是一种增加力量，增大肌肉体积，减少体脂的新型营养补剂。现从HMB的来源、作用和与运动训练的关系几方面作一论述，为HMB的合理使用提供参考。     

交流磁轴承支承电主轴转子系统建模

为克服现有混合磁轴承具有的缺陷,提出一种结构新颖的交流混合磁轴承作为高速电主轴的支承部件,永磁体产生偏磁磁通,电磁铁线圈产生控制磁通;介绍了该磁轴承的结构和工作原理,并基于Matlab/Simulink建立了考虑陀螺耦合的电主轴刚性转子和柔性转子四自由度的模型。     

应用于液压集成块优化的一种混合遗传-退火算法

This paper establishes a mathematical model of multi-objective optimization with behavior constraints in solid space based on the problem of optimal design of hydraulic manifold blocks (HMB). Due to the limitation of its local search ability of genetic algorithm (GA) in solving a massive combinatorial optimization problem, simulated annealing (SA) is combined, the multi-parameter concatenated coding is adopted, and the memory function is added. Thus a hybrid genetic-simulated annealing with memory function is formed. Examples show that the modified algorithm can improve the local search ability in the solution space, and the solution quality.