In the framework of a bilateral cooperation between the I.N.RI.M./University of Cassino and DH Instruments, the authors tested the effectiveness of finite element methods (FEM) in predicting the behaviour of high performance pressure balances that are used extensively in national metrology laboratories and industry. The pressure balances under investigation operate up to 200MPa (free deformation and controlled clearance types). The results of FEM calculations are presented, giving information on the baseline models adopted. All FEM numerical results are discussed and compared with the typical characteristics of the piston–cylinders observed in the metrology laboratory of the pressure balance manufacturer. Conclusions are drawn in terms of reliability of results based on an estimation of the parameters that have the largest influence on the uncertainty in the investigated quantities.

Effectiveness of finite element calculation methods (FEM) on highly precise and sensitive pressure balances in liquid media up to 200 MPa.

BUONANNO, Giorgio;GIOVINCO, Gaspare;
2005

Abstract

In the framework of a bilateral cooperation between the I.N.RI.M./University of Cassino and DH Instruments, the authors tested the effectiveness of finite element methods (FEM) in predicting the behaviour of high performance pressure balances that are used extensively in national metrology laboratories and industry. The pressure balances under investigation operate up to 200MPa (free deformation and controlled clearance types). The results of FEM calculations are presented, giving information on the baseline models adopted. All FEM numerical results are discussed and compared with the typical characteristics of the piston–cylinders observed in the metrology laboratory of the pressure balance manufacturer. Conclusions are drawn in terms of reliability of results based on an estimation of the parameters that have the largest influence on the uncertainty in the investigated quantities.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11580/13041
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
social impact