公开(公告)号：US20150153246A1

公开(公告)日：2015-06-04

申请号：US14558176

申请日：2014-12-02

Applicant: Agency for Defense Development

Inventor： Changwon SHUL ,  Taehyeong KIM ,  Yoonjae KIM ,  Myungseog YANG ,  Gyuseop LEE

IPC: G01M10/00

CPC classification number: G01M7/08

Abstract: Disclosed herein is a land based horizontal shock wave tester that simulates double shock waves generated in an underwater explosion. The horizontal shock wave tester includes a first shock wave generating unit, a second shock wave generating unit and a shock wave control unit. The first shock wave generating unit is installed at a predetermined position on a stationary mass on which a specimen is mounted. The second shock wave generating unit is provided to generate a secondary shock wave derived from a primary shock wave input from the first shock wave generating unit by collision of an impacting mass with the stationary mass. The shock wave control unit controls the second shock wave generating unit by using MR damper units so that a period and a magnitude of the stationary shock wave that vary depending on a period and a magnitude of the primary shock wave can be adjusted.

Abstract translation: 本文公开了一种陆基水平冲击波测试仪，其模拟在水下爆炸中产生的双重冲击波。 水平冲击波测试仪包括第一冲击波发生单元，第二冲击波发生单元和冲击波控制单元。 第一冲击波发生单元安装在安装有试样的静止质量块上的预定位置。 第二冲击波发生单元被设置成通过冲击质量与静止质量的碰撞产生从第一冲击波发生单元输入的主冲击波得到的二次冲击波。 冲击波控制单元通过使用MR阻尼器单元来控制第二冲击波产生单元，使得可以调节根据初级冲击波的周期和幅度而变化的固定冲击波的周期和幅度。

公开(公告)号：US20150152896A1

公开(公告)日：2015-06-04

申请号：US14558232

申请日：2014-12-02

Applicant: Agency For Defense Development

Inventor： Taehyeong KIM ,  Yoonjae KIM ,  Changwon SHUL ,  Jaechang HA

IPC: F15B15/22 ,  F15B15/14

CPC classification number: F15B1/24 ,  F15B15/221 ,  F15B15/224 ,  F15B2201/32 ,  F15B2211/212 ,  G01M7/08

Abstract: Disclosed herein is a three-stage hydraulic actuator. The three-stage hydraulic actuator includes a pressurizing chamber, a distribution chamber and an acceleration chamber. The pressurizing chamber has therein separated spaces respectively charged with compressed gas and compressed oil. The distribution chamber is provided to communicate with the pressurizing chamber and is charged with oil pressurized by the compressed oil charged into the pressurizing chamber. The acceleration chamber communicates with the distribution chamber through a distributing orifice. An acceleration piston is installed in the acceleration chamber and is moved forward when the pressurized oil is supplied from the distribution chamber to the acceleration chamber.

Abstract translation: 这里公开了三级液压致动器。 三级液压致动器包括加压室，分配室和加速室。 加压室内分离有分别充满压缩气体和压缩油的空间。 分配室被设置成与加压室连通并且被加载到加压室中的压缩油加压的油充入。 加速室通过分配孔与分配室连通。 加速活塞安装在加速室中，并且当加压油从分配室供给到加速室时，该活塞向前移动。