发明名称 |
Internally damped, self-arresting vertical drop-weight impact test apparatus |
摘要 |
A vertical dropped-weight impact test machine has a dropped-weight barrel vertically supported on upper and lower support brackets. The dropped-weight barrel is chambered to receive a dropped-weight assembly having a latch pin at its upper end, a damping unit in the middle, and a tup at its lower end. The tup is adapted for gathering data during impact testing. The latch pin releasably engages a latch pin coupling assembly. The latch pin coupling assembly is attached to a winch via a halyard for raising and lowering the dropped-weight assembly. The lower end of the dropped-weight barrel is provided with a bounce-back arresting mechanism which is activated by the descending passage of the dropped-weight assembly. After striking the specimen, the dropped-weight assembly rebounds vertically and is caught by the bounce-back arresting mechanism. The damping unit of the dropped-weight assembly serves to dissipate energy from the rebounding dropped-weight assembly and prevents the dropped-weight assembly from rebounding from the self-arresting mechanism.
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申请公布号 |
US5497649(A) |
申请公布日期 |
1996.03.12 |
申请号 |
US19950414253 |
申请日期 |
1995.03.31 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
AMBUR, DAMODAR R.;PRASAD, CHUNCHU B.;WATERS, JR., WILLIAM A.;STOCKUM, ROBERT W.;WALTER, MANFRED A. |
分类号 |
G01N3/30;(IPC1-7):G01N3/00 |
主分类号 |
G01N3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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