二维柔性多体系统非线性动力响应分析

基于包含轴向变形效应的Euler梁非线性理论,引用梁横向和纵向振动的精确模态描述变形场,利用拉格朗日乘子法建立起柔性多体系统约束非线性动力学方程。该非线性方程自动计及了动力刚化的影响。结合Newmark直接积分法和Newton-Raphson迭代法,导出了求解该非线性代数-微分方程组的数值方法。仿真算例证明了本文方法的正确性和有效性。     

柔性石墨微孔孔径分布X射线小角散射实验测定

介绍了X射线小角散射技术测定多孔材料微孔孔径分布的一种方法,并对几种柔性石墨中微孔孔径分布进行了实验测定。实验结果显示,所测柔性石墨中微孔具有相同的四峰分布特征,随着密度的增加孔径分布向小孔方向移动。     

柔性制造系统任务成功性模型

本文针对ＦＭＳ在完成任务过程中，系统或系统的某些单元发生了不超过规定时间内修复且不影响任务完成的故障情况，给出任务成功性的定义，典型情况的任务成功度模型和ＦＭＳ多任务成功性模型。本文作者所提的ＦＭＳ任务成功性模型已应用于北京和长春ＦＭＳ试验中心，为合理评估两个中心的广义可靠性提供了理论依据。     

弹性体打击时间的测定

本讨论了弹性体打击的模型，提出了运用ＭＣＳ－５１微处理器精密测量弹性体打击时间的方法，并对测量结果进行了分析，对比。结论是使用这种测定方法，得到的数据准确，可靠，对材料特发表主材料结构的研究，有着十分重要的价值。     

“刚美”：一个古老又年轻的美学范畴

“刚美”是张玉能先生近几年提出的一个美学范畴。本文对刚美历史渊源、审美特征及其与柔美的关系进行了详细的探讨;不但证明了它源远流长,特色鲜明;而且指出了它是张玉能先生为适应美学在新时代发展的要求,迎接新时期的挑战,对中国古典美学和西方美学已经取得的理论成果进行的归纳和总结,是对中西方美学理论的继承和发展;因此,刚美是一个既古老又年轻的美学范畴,它对丰富和发展我国美学理论具有重要意义。     

Flexible photodetector based on large-area few-layer MoS2

Developing flexible photodetectors is crucial for both military and civil fields. Large-area MoS_2 films from several to dozens of layers are controllably synthesized via a facile atmospheric-pressure sulfurization route of predeposited Mo films and transferred onto other substrates(e.g. SiO_2/Si wafers, quartz slides, polymers). The flexible photodetectors were fabricated by transferring as-synthesized MoS_2 films onto interdigital electrodes patterned on polyethylene terephthalate(PET) substrates. No additional complex lithography positioning techniques were needed during the device fabrication process due to the large area of as-grown atomic thin MoS_2 films. As-obtained flexible photodetectors showed responsibilities of ～ 20 mA/W and response time of several seconds. This demonstrates the possibility of employing large-area two-dimensional semiconductors to meet the increasing demands for wearable and portable electronics.     

企业外围员工与柔性管理

人们在关注企业核心员工的财富创造能力的同时，往往忽视了企业外围员工的价值，更少顾及针对外围员工的管理方式的思考。事实上，企业外围员工对企业经营的成败具有不可或缺的作用。所以，弄清楚外围员工的范围、特征，并探寻适合其特征的管理方式，对于发挥外围员工的作用是有积极意义的。     

柔性植物对海堤堤前波高的影响试验研究

经过调查研究后,采用人工柔性植物模拟海堤外滩地柔性植物,利用规则波进行物理模型试验,系统分析了波浪在有柔性植物滩地上的传播变形规律;以及不同波周期、植物宽度、植物高度、植物密度对海堤堤前波高的影响。试验表明:随着植物宽度和植物密度的增加,消减系数随着增加;反之减小。由于植物造波作用的影响,柔性植物对大周期来波的消减效果较好;植物高度与水深一致的时候的消减效果较好。     

基于FLAMES的战场目标仿真设计与实现

采用第三方计算并判定目标毁伤效果的设计思路,提出了基于FLAMES仿真框架的＂实体仿真模型＋子目标毁伤模型动态库＂的策略,设计并实现了联合作战仿真中战场目标的仿真,不仅有利于目标仿真模型的重用,也有利于灵活高效地实现目标与子目标两级毁伤效果的计算与判定,实践证明是一种方便可行的实现途径。

Abstract：

The way of design was introduced that the damage effect was calculated and evaluated by the third party. And, the strategy of development was put forward simulating the target by the ＂Entity Simulation Models＂ ＋ ＂DLLs of Sub-target Damage Models＂ based on the FLAMES. Based on the above, the battlefield target simulation of the Joint Operations was successfully designed and implemented. The solution’s effectiveness has been proved by a series of application, that is not only helpful for improving the reusability of target simulation models, but also for calculating and evaluating the two level’s damage effect including the target and its sub-target flexibly and efficiently. It is a convenient way possible to achieve in practice.     

Subsea flexible flowline installation issues and solutions

Flexible flowlines and risers have been increasingly used for deepwater and ultra-deepwater field applications,partially because of its low submerged weight and better dynamic characteristics comparing to rigid pipelines. The offshore installation of flowline may have advantages as well. However,it has special needs for the in-stallation aids,and it is challenging to install tie-in structures due to its low bending stiffness. This paper is to present some of the challenges during a recent flexible installation project with a total of more than 100 km flexible flowlines,and 24 in-line sleds/pipeline end termination(PLET) in water depth up to 1 300 m.