Operational Characteristics of a Free-piston Shock Tube.

1995 ◽  
Vol 43 (499) ◽  
pp. 446-450 ◽  
Author(s):  
Hisashi KIHARA ◽  
Shigeru ASO ◽  
Michio NISHIDA
Keyword(s):  
Shock Tube ◽  
Free Piston ◽  
Operational Characteristics

Experimental Investigation of Nano Ceramic Material Interaction with High Enthalpy Argon under Shock Dynamic Loading

2011 ◽  
Vol 83 ◽  
pp. 66-72 ◽  
Author(s):  
Vishakantaiah Jayaram ◽  
Singh Preetam ◽  
K. P. J. Reddy
Keyword(s):  
Shock Tube ◽  
Dynamic Loading ◽  
Strong Shock ◽  
Ceramic Materials ◽  
Reflected Shock Wave ◽  
Free Piston ◽  
High Pressure And Temperature ◽  
High Enthalpy ◽  
Reflected Shock ◽  
Ar Gas

Indigenously designed and fabricated free piston driven shock tube (FPST) was used to generate strong shock heated test gases for the study of aero-thermodynamic reactions on ceramic materials. The reflected shock wave at the end of the shock tube generates high pressure and temperature test gas (Argon, Ar) for short duration. Interaction of materials with shock heated Ar gas leads to formation of a new solid or stabilization of a material in new crystallographic phase. In this shock tube, the generated shock waves was utilized to heat Ar to a very high temperature (11760 K) at about 40-55 bar for 2-4 ms. We confirmed the phase transformation and electronic structure of the material after exposure to shock by XRD and XPS studies. This high enthalpy gas generated in the shock-tube was utilized to synthesize cubic perovskite CeCrO3from fluorite Ce0.5Cr0.5O2+δoxide. We were able to demonstrate that this ceramic materials undergoes phase transformations with the interaction of high enthalpy gas under shock dynamic loading.

An Experimental Evaluation of Shock Wave Strength and Peak Pressure in a Conventional Shock Tube and a Free-Piston Compressor

2008 ◽  
Author(s):  
Amir Al-Falahi ◽  
M. Z. Yusoff ◽  
T. Yusaf
Keyword(s):  
Shock Tube ◽  
Peak Pressure ◽  
Piston Compressor ◽  
Experimental Measurements ◽  
Shock Strength ◽  
Free Piston ◽  
Significant Information ◽  
Surface Temperature Change ◽  
Operation Conditions

The aim of this work is to provide a comparative experimental study on the performance of the conventional shock tube and a free-piston compressor. Experimental measurements of shock strength, peak pressure and surface temperature change of air-air as a driver/driven gas are then presented and compared with another set of experimental measurements using gas combination of He-air. The results provide very good estimates for the above mentioned parameters obtained after diaphragm rupture and also provide significant information on the role of the free piston in the facility operation conditions over the full length of the facility.

Burst-Mode Coherent Anti-Stokes Raman Scattering N2Thermometry in the Sandia Free-Piston Shock Tube

2022 ◽  
Author(s):  
Sean P. Kearney ◽  
Kyle Daniel ◽  
Justin L. Wagner ◽  
Kyle P. Lynch ◽  
Charley R. Downing ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Shock Tube ◽  
Free Piston ◽  
Burst Mode ◽  
Anti Stokes

Rupture-disk-less shock-tube with compression tube driven by free piston

Shock Waves ◽  
1997 ◽  
Vol 7 (4) ◽  
pp. 205-209 ◽  
Author(s):  
T. Abe ◽  
E. Ogura ◽  
S. Sato ◽  
K. Funabiki
Keyword(s):  
Shock Tube ◽  
Free Piston ◽  
Rupture Disk

Area change with a free-piston shock tube

AIAA Journal ◽  
1964 ◽  
Vol 2 (2) ◽  
pp. 396-397 ◽  
Author(s):  
R. J. STALKER
Keyword(s):  
Shock Tube ◽  
Free Piston ◽  
Area Change

Structural Principle of Hydraulic Engine

2014 ◽  
Vol 709 ◽  
pp. 28-31
Author(s):  
Hong Xin Zhang ◽  
Yu Qin Jiao ◽  
Tie Zhu Zhang ◽  
Lian Jun Cheng
Keyword(s):  
Agricultural Machinery ◽  
Piston Engine ◽  
Machinery Construction ◽  
Free Piston ◽  
Construction Machinery ◽  
Structural Principle ◽  
Free Piston Engine ◽  
Operational Characteristics ◽  
New Type ◽  
Development Analysis

Hydraulic engines can be widely used in many fields, such as agricultural machinery, construction machinery, duty vehicle, and many other fixing or mobile devices. The development analysis and study on their structural principle, technical and operational characteristics will be undoubtedly very useful for putting forward new type hydraulic engines. The structural principle of Hydraulic Free Piston Engine, Hydraulic Confined Piston Engine was introduced. The structural principle of Half Crank Hydraulic Engine (HCHE), which inherits the merits of traditional engine, HFPE and HCPE, was put forward.

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