A novel heavy-weight shock test machine for simulating underwater explosive shock environment: mathematical modeling and mechanism analysis
A novel heavy-weight shock test machine for simulating underwater explosive shock environment: mathematical modeling and mechanism analysis
A novel heavy-duty shock test machine is developed to satisfy the newly-built shock resistance standard and simulate accurately the actual underwater explosive environments with increased testing capability. The mathematical model for the shock test machine is created to predict its dynamic performance and analyze its mechanism. Then numerical simulation is carried out to evaluate the prospective capability of the shock test machine under different shock velocity inputs. The double protection system incorporating the stroke limit of the accumulator piston and the unloading circuit can effectively prevent the secondary collision in the testing process. The simulation results have demonstrated that the shock test machine proposed in this paper can produce nearly the same shock acceleration waveform as the new shock resistance standard BV043/85 and MIL-S-901D. Moreover, this shock test machine can be regulated conveniently to adjust to a different type of equipment and be extended easily to suit more severe shock environments and heavier equipment. The proposed system configuration and associated mathematical model provide theoretical basis and useful design techniques for practical applications.
shock test machine, velocity generator, rapid opening high flow valve, shock test, underwater explosion
239-248
Wang, Gongxian
18984f13-226a-42a5-abfa-b328760c96da
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Tang, Wenzhi
8b06bccd-c464-4e89-a2e6-bfd82f54c3c8
December 2013
Wang, Gongxian
18984f13-226a-42a5-abfa-b328760c96da
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Tang, Wenzhi
8b06bccd-c464-4e89-a2e6-bfd82f54c3c8
Wang, Gongxian, Xiong, Yeping and Tang, Wenzhi
(2013)
A novel heavy-weight shock test machine for simulating underwater explosive shock environment: mathematical modeling and mechanism analysis.
International Journal of Mechanical Sciences, 77, .
(doi:10.1016/j.ijmecsci.2013.09.006).
Abstract
A novel heavy-duty shock test machine is developed to satisfy the newly-built shock resistance standard and simulate accurately the actual underwater explosive environments with increased testing capability. The mathematical model for the shock test machine is created to predict its dynamic performance and analyze its mechanism. Then numerical simulation is carried out to evaluate the prospective capability of the shock test machine under different shock velocity inputs. The double protection system incorporating the stroke limit of the accumulator piston and the unloading circuit can effectively prevent the secondary collision in the testing process. The simulation results have demonstrated that the shock test machine proposed in this paper can produce nearly the same shock acceleration waveform as the new shock resistance standard BV043/85 and MIL-S-901D. Moreover, this shock test machine can be regulated conveniently to adjust to a different type of equipment and be extended easily to suit more severe shock environments and heavier equipment. The proposed system configuration and associated mathematical model provide theoretical basis and useful design techniques for practical applications.
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e-pub ahead of print date: 22 October 2013
Published date: December 2013
Keywords:
shock test machine, velocity generator, rapid opening high flow valve, shock test, underwater explosion
Organisations:
Faculty of Engineering and the Environment
Identifiers
Local EPrints ID: 360781
URI: http://eprints.soton.ac.uk/id/eprint/360781
ISSN: 0020-7403
PURE UUID: 96444b8e-7bfa-4e09-8afd-59be1ba6ab7e
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Date deposited: 23 Dec 2013 14:52
Last modified: 15 Mar 2024 03:06
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Author:
Gongxian Wang
Author:
Wenzhi Tang
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