排序方式: 共有63条查询结果,搜索用时 15 毫秒
11.
温压炸药作为一种较新型的武器弹药,学界对其研究主要集中在弹药性能和毁伤效果的提高上,缺乏对温压炸药装药安全性的分析.温压炸药装药又是一项极具危险性的作业工艺,本文针对温压武器装药系统,采用事故树分析方法对温压装药进行危险性分析,提出温压装药火灾爆炸安全模式,之后由反应温压武器及其制品的危险性能和用于对其生产、储运系统进行安全评价数学模型出发,编程建立了一个实用、系统的温压武器装药安全数据管理信息系统,为温压武器生产企业的实际装药安全生产管理、危险控制,提供一定的理论依据与数据支持. 相似文献
12.
13.
目前导弹武器系统的环境适应性分析方法主要是基于剖面分析的定性分析,分析结果比较依赖个人经验,某些情况下可能无法全面识别风险,并且出现反复发作的环境适应性问题。基于此,文中开展了相关研究,全面、合理地分析导弹武器系统的环境适应性,提升装备质量特性水平。提出了基于时序的武器装备环境适应性分析方法,给出了基于时序的环境要素分析方法、产品要素分析方法和基于研制流程的工程实施方法。将该方法应用于某战术导弹,发现了63项环境适应性风险,其中有3项影响成败,通过采取针对性改进措施确保了首飞和后续多发飞行试验任务连续成功。该方法可以充分暴露武器系统环境适应性风险,并且可以作为一种风险识别方法应用到试验充分性分析和测试覆盖性分析中,具有重要的工程应用和推广价值。 相似文献
14.
介绍了国外舰载导弹发射装置的基本概况及发展历程,分析了固定式发射装置、回转式发射装置、臂式发射装置、垂直发射装置的优缺点及适装范围。根据冷热发射方式的特点,分析了4种发射装置安装方式、贮弹量、射界、发射效率、反应速度、可靠性、安全性等基本性能,阐明了倾斜发射、垂直发射、冷热共架发射的基本原理。垂直发射装置以射界大、效率高、反应快、贮弹量多等优点成为舰载发射装置主流,倾斜发射在近程末端区域防空方面,可提前指向目标,减少导弹近距离大幅机动时间,提升末端拦截概率,是垂直发射的有效补充。舰载导弹发射装置正在朝垂直化、通用化发展,模块化发射和电磁垂直发射是下一代舰载发射的发展方向。 相似文献
15.
Observations of damage to vegetation, acute reductions in surface water pH, and kills of small fish prompted the Biomedical
Operations and Research Office at the John F. Kennedy Space Center to initiate intensive environmental evaluations of possible
acute and long-term chronic impacts that may be produced by repeated launches of the space shuttle. An important step in this
evaluation was the identification of deposition patterns and the quantification of ecosystem loading rates of exhaust constituents
from the solid rocket motors (SRMs) in the area of the launch pad. These constituents are primarily aluminum oxide (Al2O3) and hydrochloric acid (HCl). During three launches of the space transportation system (STS-11, 13, and 14) up to 100 bulk
deposition collectors, 83 mm in diameter containing 100 ml of deionized water, were deployed in a grid pattern covering 12.6
ha north of launch pad 39-A. Estimates of HCl and particulate deposition levels were made based on laboratory measurements
of items entrained in the collectors. Captured particulates consisted of a variety of items including Al2O3, sand grains, sea shell fragments, paint chips, and other debris ablated from the launch pad surface by the initial thrust
of the SRMs. Estimated ranges of HCl and particulate deposition in the study area were 0–127 g/m2 and 0–246 g/m2, respectively. Deposition patterns were highly influenced by wind speed and direction. These measurements indicate that,
under certain meteorological conditions, up to 7.1 × 103 kg of particulates and 3.4 × 103 kg of HCl can be deposited to the near-field environment beyond the launch pad perimeter fence. 相似文献
16.
热等离子体技术销毁日本遗弃化武红弹装填物研究 总被引:3,自引:0,他引:3
针对二战期间日本侵略军在我国遗弃的大量化学武器的危害性,进行了热等离子体技术销毁含砷毒剂的实验,旨在为评价日本遗弃化武的销毁技术选择提供技术支持.所采用的热等离子体处理固体废弃物的实验装置主要由等离子体发生器、等离子体旋转炉、二次燃烧炉、冷却器、文丘里喷淋塔和洗涤喷淋塔等设备组成.利用该装置对日本遗弃化武红弹和红简装填物二苯氰砷和二苯氯砷进行了销毁实验,并用GC-MS法对销毁产物进行分析.结果显示,经处理后未检测出二苯氯砷和二苯氰砷,根据分析方法的检出下限计算出的二苯氯砷和二苯氰砷的销毁去除率均高达99.999 9%.对熔渣进行砷的浸出毒性实验显示,浸出液中砷的质量浓度均低于0.03 mg/L,远低于我国固体废物砷的浸出毒性鉴别标准值1.5 mg/L.但是,等离子体炉在销毁含砷有机毒剂时,固砷效率很差,因此要发挥等离子体技术的优势,还必须加强固砷方法的研究. 相似文献
17.
Space shuttle launches produce localized hydrochloric acid deposition. The interaction of solid rocket motor exhaust and deluge
water released on the pad at the time of launch results in the formation of an exhaust cloud. The spatial pattern and extent
of deposition from the launch cloud are predicted by the rocket exhaust effluent diffusion (REED) model. The actual pattern
of deposition has been mapped by field surveys for each shuttle launch since 1981. In this paper we use a geographical information
system (GIS) to compare model predictions with ground patterns for 49 shuttle launches. We also compile cumulative maps of
deposition patterns needed to consider long-term impacts. The direction of launch cloud movement did not differ significantly
from model predictions. The REED model overpredicted both the area that received deposition and the maximum distance from
the launch pad that deposition occurred. Severe vegetation damage was restricted to near-field deposition areas within 1980
m north of each launch pad. Total area impacted from launches has been 87.0 ha around pad 39A and 52.9 ha around pad 39B.
Far-field deposition has caused leaf spotting from acid droplets or aluminum oxide over a wider and more variable area than
near-field. A total of 19,397 ha has received deposition, but 63.6% of this area has received deposition only one time and
92.2% not more than three times. GIS techniques provide means to test spatial models and compile information useful for assessing
cumulative impacts. 相似文献
18.
常规兵器三综合环境试验技术研究 总被引:1,自引:0,他引:1
对温度-湿度-振动综合试验过程中的环境应力故障分析、试验标准剪裁、试验量值确定、试验设备及试验过程、试验结果评定等问题进行分析论述,分析结果对温度-湿度-振动综合试验设备选型和温度-湿度-振动综合试验具有参考价值。 相似文献
19.
20.