基于压控导电结构的能量选择表面防护机理和仿真实验研究

为解决强电磁脉冲防护中屏蔽与正常信号收发之间的矛盾,研究了一种既能隔离强电磁脉冲,又能保证被保护设备信号正常收发的能量选择表面(ESS)。基于可变表面阻抗理论研究ESS的防护机理;根据强电磁效应改变二极管的阻抗特性和实现能量选择的特点,设计了一种正反并联的二极管对阵列组成的可防护线极化强电磁脉冲的ESS,并进行仿真和实验分析。结果表明:所设计的ESS对弱电磁信号的插入损耗小于2 dB,对强电磁信号的隔离度大于20 dB,实现了能量低通的选择特性。     

基于ESS法的重载货车焊缝疲劳仿真

为验证ESS方法的有效性,以装甲钢T型焊接接头为对象,进行了仿真计算与疲劳试验,结果表明,ESS方法计算精度较高,试验与计算误差为18.8%.基于ESS法及静态应力恢复原理,对重载浴盆货车车体关键焊缝进行了疲劳仿真分析,获得了ESS分布规律及仿真结果,其中枕梁上盖板与中梁焊缝计算里程约为2 886万公里,有较高的安全裕度.     

建筑节能激励政策的演化博弈分析

为有效实施建筑节能激励政策,运用演化博弈论的方法,对政府和房地产商群体之间相互作用时的策略选择行为进行分析,给出双方最优策略建议.考虑到博弈双方有限理性不均等及房地产商个体间理性不均等的事实,进一步对政府策略提出修正,并构建房地产商二次演化博弈模型.根据演化博弈分析的结果,认为:政府坚持建筑节能的高理性信念,运用激励政策在房地产商群体内形成二次博弈,淘汰"短视"者,培养"有远见"者,最终政府与房地产商群体达到双赢.     

基于鹰鸽博弈的作战单元自主协调机制研究

针对自主协调过程中的合作与竞争的问题,运用鹰鸽博弈理论,对作战联盟中作战单元之间的自主协调机制进行了研究,旨在设计出一种能够最大化联盟整体效用的演化稳定策略（ESS）。通过分析鹰派与鸽派作战单元博弈的演化过程,得到了单纯的鹰策略和鸽策略都不是ESS的结论,在此基础上,提出了一种尊重物权的自由民策略,运用数学分析的方法,计算了联盟的整体效用,证明了自由民策略是演化稳定策略,并且能够使得作战联盟整体效用最大化。     

Electrostatic Suspension System Nonlinear Character Analysis and Its Internal Model Control

Nonlinearity is an important characteristic in electrostatic suspension system (ESS). This paper concludes the nonlinear parts in ESS, which generally result from the relationships between rotor displacement and capacitance, rotor displacement and electrostatic force, and control voltage and electrostatic force. In terms of the nonlinearities, a new control method with modified internal model control (IMC) was proposed to analyze the ESS, deduce the transfer function of the modified IMC controller in ESS, and simulate this new application in ESS. Comparing with proportional integral derivative (PID) control, IMC has only a parameter, and has better performance. As a result, IMC solves nonlinearity error well in ESS with only one uncertain parameter, and performs well when the rotor has large displacement.     

世界汽车灯具及灯光技术研究

文章是国内外汽车灯具的技术分析和总结。文章首先简介了汽车灯具的分类及基本结构；其次细述了如何依照国标对灯具进行配光性能检测和各类环境试验；最后揭示了世界汽车灯具的未来发展趋势。是汽车灯具行业的纲领性技术文件，是目前世界主要车灯技术的集大成者，对从事汽车灯光的工作人员具有重要指导作用．     

电力汽车共享企业进入市场演化博弈分析

在共享经济条件下,企业进入市场需要政府的支持和出行者的积极参与,利用演化博弈论将政府、私营企业、出行者三者视为3个种群,企业在进入市场时受到各方因素的影响,三者在动态博弈模型下逐渐演化形成稳定策略。通过寻找各个平衡点的稳定条件,得出演化过程中影响最终演化走向的关键点,分析稳定条件,从而为进入市场的企业提供一定参考。     

广州地铁6号线浔峰岗地铁站加装节能系统的工程方案研究

以广州地铁6号线浔峰岗牵引变电所为例,介绍了采用线路储能装置进行能量回馈利用的设计过程,分析了线路储能装置的加装工程方案及其工作状态,以及线路储能装置同制动电阻能耗系统的配合方式,分析了线路储能装置加装工程完成后浔峰岗站的综合能量消耗、线路储能装置回送能量及经济效益。     

Performance analysis according to the combination of energy storage system for fuel cell hybrid vehicle

The need for the unmanned ground combat vehicle (UGCV), which is used for the surveillance, reconnaissance and targeting during extremely dangerous condition on the battlefield, has steadily increased, and the transition from manned ground combat vehicles to unmanned ground combat vehicles is expected to reduce the loss of lives during battle. The UGCV needs many types of capabilities to achieve satisfactory performance. This paper focuses on the modeling and control of the power system of the UGCV, and proposes the fuel cell hybrid system (FCHS) for the power system of the UGCV. The fuel cell hybrid system has many advantages in stealth drive and the system efficiency. In addition, the FCHS is much quieter than the engine generator and generates much less heat. The benefits of the FCHS are advantageous for use in Army operations, which require ‘silent watch’ capability and the ability to operate without showing up on an enemy’s radar screen. The FCHS has a fuel cell and uses an energy storage system (ESS) as a power source. The ESS (e.g., batteries or ultracapacitors) helps the fuel cell supply power to the electric drive system and also recovers energy during deceleration. The ESS makes it possible to improve the efficiency and dynamic characteristic of the power system. In this paper, the FCHS is composed of different combinations of component models. The component sizes are chosen to satisfy performance requirements. In order to determine the power distribution between the fuel cell and the ESS, a power management strategy based on the required power and the SOC (state of charge) of the ESS is proposed. Batteries and ultracapacitor, components of the ESS, have different characteristics. Accordingly, varying the combination of ESS components can change the performance of the power system. The performance of the FCHS with respect to different combinations of ESS is analyzed using simulated results.     

产品环境应力筛选方法研究

简要分析了不适当的环境应力筛选会对产品造成损害的原因, 在此基础上文中对由气锤式六自由度振动台和电动振动台所构建的综合试验设备的优缺点进行了分析、比较,并论证环境应力筛选(ESS)应针对专门产品的试验应力进行控制的观点,提出应注重多件样品振动应力一致性的要求.文中为进一步开展环境应力筛选、可靠性试验研究提供了可行途径且指出了目前这类试验中存在的不足.