欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    REG NASA-LLIS-0328-1993 Lessons Learned - Solid Propellant Electro-Static Discharge Ignition.pdf

    • 资源ID:1017975       资源大小:13.10KB        全文页数:2页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    REG NASA-LLIS-0328-1993 Lessons Learned - Solid Propellant Electro-Static Discharge Ignition.pdf

    1、Lessons Learned Entry: 0328Lesson Info:a71 Lesson Number: 0328a71 Lesson Date: 1993-11-10a71 Submitting Organization: MSFCa71 Submitted by: Fisher, MarkSubject: Solid Propellant, Electro-Static Discharge Ignition Description of Driving Event: The accident investigation into the fire and destruction

    2、of a Pershing II stage I missile motor in Germany revealed that it was accepted that the propellant (QBJ-29) was insensitive to ESD. The cause of the accident was attributed to ESD. Older ESD sensitivity tests based upon the determination of spark energy, such as the layer test, the dust test, and t

    3、he human spark test, were found to be inaccurate when U.S. hazard technologists began determining the ESD sensitivity of QBJ-29. It was found that the spark gap tests did not accurately reflect the actual energy delivered to a propellant sample. U.S. technologists, in addition, did not consider how

    4、changes in humidity or temperature affected the electrical properties of the propellant samples. Therefore, U.S. investigators borrowed the test techniques, which SNPE has been developing since 1976. The SNPE employed a three-part test methodology based on the RC discharge test, volume resistivity m

    5、easurements as a function of temperature, and percolation coefficient calculations. While the SNPE test is more discriminating than the older tests, it is itself unreliable.Lesson(s) Learned: Presently available technology (as of 1988) for determining sensitivity of solid propellant to electro-stati

    6、c discharge is unreliable.Recommendation(s): Until such time as a reliable method for determining sensitivity to ESD is developed and proven, solid propellants should be treated as sensitive to ESD and appropriate measures taken to avoid exposure to ESD.Evidence of Recurrence Control Effectiveness:

    7、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Guarding against the possibility of ignition by ESD is evidently more effective than not doing so because an unreliable test indicated insensitivity.Documents Related to Lesson: N/AMission Directorate(s

    8、): N/AAdditional Key Phrase(s): a71 Energetic Materials - Explosive/Propellant/Pyrotechnica71 Energya71 Hazardous/Toxic Waste/Materialsa71 Industrial OperationsAdditional Info: Approval Info: a71 Approval Date: 1994-08-17a71 Approval Name: Fisher, Marka71 Approval Organization: EP22a71 Approval Phone Number: 205-544-9503Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


    注意事项

    本文(REG NASA-LLIS-0328-1993 Lessons Learned - Solid Propellant Electro-Static Discharge Ignition.pdf)为本站会员(花仙子)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开