Yield shear stress model of magnetorheological fluids based on exponential distribution

摘要: Abstract The magnetic chain model that considers the interaction between particles and external field in a magnetorheological fluid has been widely accepted. Based on model, yield shear stress of fluids was proposed by introducing exponential distribution to describe angles direction formed particles. main influencing factors were considered such as flux density, intensity field, particle size, volume fraction particles, angle chain, so on. effect density discussed. aqueous Fe 3 O 4 magnetreological with 7.6% 16.2% measured device designed ourselves. results indicate can be used for calculation acceptable errors.