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1.发明授权
公开(公告)号：US5351553A
公开(公告)日：1994-10-04
申请号：US59769
申请日：1993-05-03
CPC分类号： G01N3/31 , G01N2203/0017 , G01N2203/0032 , G01N2203/0055 , G01N2203/0098
摘要： A flywheel tensile testing apparatus for viscoelastic materials is used for high-rate tensile testing to determine the mechanical properties such as the initial modulus, the stress-strain characteristics, energy at break, and void formation of energetic materials such as solid propellants and plastic bonded explosives under deformation rates in excess of 20,000 inches per minute. The tensile tester is comprised of a plurality of support trestles which are mounted on a common base. A flywheel and a light weight engagement wheel are mounted for rotation on the support trestles. A clutch and rotor assembly is located between the flywheel and the light weight engagement wheel so that when the clutch is engaged, the stored energy of the flywheel is transferred to a rotor assembly which in turn drives the light weight engagement wheel. The flywheel is driven by a variable speed motor. The activation of the clutch and rotor assembly are preferably performed in response to an electronic signal. A stretching mechanism for elongating the viscoelastic test specimen is located proximate the light weight engagement wheel and further positioned so as to tangentially align the viscoelastic test specimen with the light weight engagement wheel. The light weight engagement wheel is initially in a stationary or stopped position. When activated, the light weight engagement wheel quickly ramps up to the desired speed and engages the stretching mechanism which initiates the high rate tensile test on the viscoelastic test specimen.
摘要翻译： 用于粘弹性材料的飞轮拉力试验装置用于高速拉伸试验，以确定诸如固体推进剂和塑料粘合剂等高能材料的初始模量，应力 - 应变特性，断裂能和空隙形成等机械性能 爆炸物的变形速率超过每分钟20,000英寸。 拉伸试验机由安装在公共基座上的多个支撑架构成。 飞轮和重量轻的啮合轮安装在支撑架上旋转。 离合器和转子组件位于飞轮和重量轻的接合轮之间，使得当离合器接合时，飞轮的储存能量被转移到转子组件，转子组件又驱动重量轻的啮合轮。 飞轮由变速马达驱动。 优选地，响应于电子信号来执行离合器和转子组件的启动。 用于拉伸粘弹性测试样本的拉伸机构位于重量轻的接合轮附近，并进一步定位成使得粘弹性测试样本与重量轻的啮合轮相切地对准。 轻型接合轮最初处于静止或停止位置。 当启动时，重量轻的接合轮快速上升至所需的速度，并与拉伸机构接合，该拉伸机构启动对粘弹性试样的高速拉伸试验。
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公开(公告)号：US5103678A
公开(公告)日：1992-04-14
申请号：US697351
申请日：1991-05-06
CPC分类号： G01N3/26 , G01M11/088 , G01N33/386
摘要： Apparatus for measuring peel force exerted on optical fiber being pulled m a bobbin upon which it is wound, the pull being in the direction of the longitudinal axis of the truncated-conically-shaped bobbin. One end of an elongaged lever arm holds the bobbin cantilevered from the bobbin end opposite that from which the optical fiber is pulled so that the bobbin is positioned generally horizontally over a horizontal base to which the opposite end of the lever arm is pivotally attached. An intermediate point on the arm beneath the bobbin is in contact with a load measuring device so that as the fiber is pulled any reaction by the arm upon the device provides a measure of the peel force upon the fiber.
摘要翻译： 用于测量施加在光纤上的剥离力的装置从被卷绕在其上的线轴上拉出，该拉力沿着截头圆锥形绕线筒的纵轴方向。 伸长的杠杆臂的一端保持从与被拉动的光纤相对的筒管端部悬臂的筒管，使得筒管大致水平地定位在水平底座上，杠杆臂的相对端枢转地附接到水平底座。 线轴下方的臂上的中间点与负载测量装置接触，使得当纤维被拉动时，手臂上的任何反作用力都能提供纤维上的剥离力的量度。
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公开(公告)号：US4241671A
公开(公告)日：1980-12-30
申请号：US39920
申请日：1979-05-17
CPC分类号： F23G5/50 , F23G5/34 , F23G2209/16
摘要： An air-curtain incinerator for burning energetic materials. Both the volumef air and the angle at which air enters the fire box are remotely controllable. The combustion process is monitored, and the air volume and angle at which air enters the fire box are controlled to minimize the production of air pollutants by the combustion of energetic materials.
摘要翻译： 用于燃烧高能材料的气帘焚化炉。 空气的体积和空气进入火箱的角度都可以远程控制。 监测燃烧过程，并控制空气进入消防箱的空气量和角度，以通过高能材料的燃烧最小化空气污染物的产生。
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