Dj. Peel et Wa. Bullough, PREDICTION OF ELECTRORHEOLOGICAL VALVE PERFORMANCE IN STEADY FLOW, Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 208(4), 1994, pp. 253-266
Previous work has indicated that electro-rheological (ER)fluid in stea
dy valve flow can be approximately characterized by the dimensionless
parameters friction coefficient, Reynolds number and Hedstrom number a
nd the Bingham plastic constitutive equation, and has pointed towards
a relationship between tests on valves of various dimensions at differ
ent excitations and speeds of flow and comparatively small volume, qui
ck, static clutch mode tests. In this paper, the position is extended
and developed more precisely. The generalized valve flow characteristi
c is taken, together with simple static clutch determinations of fluid
yield properties, zero volt viscosity and valve dimensions to predict
valve pressure/flow performance for comparison with valve test data.
The static clutch test rig and test procedure are described, and the r
elationship between static clutch and valve flow determinations of yie
ld stress is then further examined.