Fig. 1. MRF flow transient working condition diagram

Fig. 2. Multiphase granular flow model of MRF transient

Fig. 3. Transient transition process and response time of MRF flow

Fig. 4. Kistler 9119AA1 three-direction force sensor

Fig. 5. Schematic of MRF in situ force measurement system of plane optical element

Fig. 6. Measurement of three-direction in situ mechanical signals under six transient flow conditions. (a) Downstream in; (b) downstream out; (c) upstream in; (d) upstream out; (e) landing; (f) levitation

Fig. 7. Response time of transient measured by normalized mechanical signals