EVALUATION OF PRESSURE DISTORTION COEFFICIENT FOR 200 MPa PISTON CYLINDER ASSEMBLY |
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| A.E.Eltawil, S.S.Kishk, A.M.Fawzy, M.A.Kenawy, M.I.Elanwar |
- Abstract:
- Recently a special attention has been given to the design and metrological characteristics of pressure balance, in particular to the evaluation of pressure distortion coefficient of piston cylinder assembly effective area. In high pressure range namely above 50 MPa, a change of the effective area of piston cylinder units due to elastic distortions becomes one of the main sources of uncertainty of the measured pressure. The elastic distortion coefficient for piston cylinder unit of range 200 MPa used at National Institute of Standards (NIS) was measured through cross-floating experiment and calculated using the finite element analysis method (FEA). The results obtained by these means (numerical and experimental) were compared for the NIS piston cylinder assembly up to 200 MPa.
- Keywords:
- Pressure, Pressure balance, Distortion coefficient, Finite element analysis (FEA) , Cross-floating
- Download:
- IMEKO-TC3-2005-066u.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC3
- Event name:
- Force, Mass and Torque Measurements
- Title:
- Theory and Applications in Laboratories and Industry
- Place:
- Cairo, EGYPT
- Time:
- 19 February 2005 - 23 February 2005