消防部队实施区域灭火救援的思考

随着新《中华人民共和国消防法》颁布实施,公安消防部队除了承担防火、灭火工作之外,还承担着重大灾害事故和其他以抢救人员生命为主的应急救援工作。我国边疆地域面积辽阔,一些县市面积很大,消防队伍力量薄弱,造成灭火救援力量不能及时的到达现场,不能最大限度的发挥公安消防部队的职能作用。结合解放军在作战时划分战区的考虑,从消防部队灭火救援工作的实际出发,对今后我国消防部队灭火救援工作提出了一些新思路、新方法。以期有效的利用我国目前的消防资源,最大限度减少火灾损失,发挥最大的能力,保障人民群众的生命安全。     

非致命武器的绿色设计

运用人机工程学等绿色设计理论对非致命武器进行分析,简要讨论非致命武器的绿色设计方法和绿色材料的选择。     

浅谈提高军用包装的保障效能

军用包装是确保装备物资高可靠性、长寿命及战时迅速转化为战斗力的重要环节之一。本文分析了军用包装的功能,提出了完善标准、规格多样、单元集装、综合防护等提高军用包装保障效能的措施。     

装备维修决策的经济分析方法

从经济角度分析,成本的高低是判断装备维修决策优劣的一条重要标准。本文介绍了成本现值法的具体内容,对如何应用成本现值法来选择成本最低的最佳装备维修方案进行了深入研究,并对运用该方法进行装备维修决策分析时应注意的问题作了进一步的说明。     

装备动员与知识产权关系初探

首先对装备动员中的知识产权进行了定义和分类,然后分析了知识产权因素对装备动员的影响,最后提出了解决装备动员中知识产权问题的对策。     

关于电教教材的美学思考

在阐述电教教材美学价值的基础上,分析了电教教材的主要美学特征,并提出了电教教材编制人员应具备的美学素养及电教教材三维结构的要求。     

Driving force coordinated control of an 8 ×8 in-wheel motor drive vehicle with tire-road friction coefficient identification

Because of the complexities of tire-road interaction,the wheels of a multi-wheel distributed electric drive vehicle can easily slip under certain working conditions.As wheel slip affects the dynamic per-formance and stability of the vehicle,it is crucial to control it and coordinate the driving force.With this aim,this paper presents a driving force coordination control strategy with road identification for eight-wheeled electric vehicles equipped with an in-wheel motor for each wheel.In the proposed control strategy,the road identification module estimates tire-road forces using an unscented Kalman filter al-gorithm and recognizes the road adhesion coefficient by employing the recursive least-square method.According to road identification,the optimal slip ratio under the current driving condition is obtained,and a controller based on sliding mode control with a conditional integrator uses this value for accel-eration slip regulation.The anti-slip controller obtains the adjusting torque,which is integrated with the driver-command-based feedforward control torque to implement driving force coordination control.The results of hardware-in-loop simulation show that this control strategy can accurately estimate tire-road forces as well as the friction coefficient,and thus,can effectively fulfill the purpose of driving force coordinated control under different driving conditions.     

A study on the surface overpressure distribution and formation of a double curvature liner under a two-point initiation

The formation mechanism of an EFP(explosively formed projectile) using a double curvature liner under the overpressure effect generated by a regular oblique reflection was investigated in this paper.Based on the detonation wave propagation theory,the change of the incident angle of the detonation wave collision at different positions and the distribution area of the overpressure on the surface of the liner were calculated.Three-dimensional numerical simulations of the formation process of the EFP with tail as well as the ability to penetrate 45# steel were performed using LS-DYNA software,and the EFP ve-locity,the penetration ability,and the forming were assessed via experiments and x-ray photographs.The experimental results coincides with those of the simulations.Results indicate that the collision of the detonation wave was controlled to be a regular oblique reflection acting on the liner by setting the di-mensions of the unit charge and maintaining the pressure at the collision point region at more than 2.4 times the CJ detonation when the incident angle approached the critical angle.The distance from the liner midline to the boundary of the area within which the pressure ratio of the regular oblique reflection pressure to the CJ detonation pressure was greater than 2.5,2,and 1.5was approximately 0.66 mm,1.32 mm,and 3.3 mm,respectively.It is noted that pressure gradient caused the liner to turn inside out in the middle to form the head of the EFP and close the two tails of the EFP at approximately 120μs.The penetration depth of the EFP into a 45# steel target exceeded 30 mm,and there was radial expansion between the head and tail of the EFE increasing the penetration resistance of the EFP.Therefore,the structural size of the unit charge and the liner can be further optimized to reduce resistance to increase the penetration ability of the EFP.     

纯方位目标运动分析的一种系统方法

本文首先对以往关于纯方位目标运动分析的研究作了系统性的综述,阐明了以往发展的纯方位TMA算法所存在的共性不足以及解决该问题的困难性,最后介绍了我们研究的一种系统解决纯方位TMA问题的DL原理。     

近程反导舰炮武器系统“综合体”的可靠性—效能评估模型

本文对典型的近程反导舰炮武器系统做了任务状态划分和可靠性分析,建立了系统执行任务过程中的可靠性—效能评估模型。