The experimental results demonstrate that the new control system and method may attain to the high technical request of fiber alignment work entirely in mini-precise parallel mechanism and it presents a new applied method for controlling and designing of similar high precise and large work distance mini -orient system.
The structural features of fiber suspensions are dependent on the fiber alignment in the flows.
In this work the orientation distribution function and orientation tensors for semi-concentrated fiber suspensions in converging channel flow were calculated, and the evolutions of the fiber alignment and the bulk effective viscosity were analyzed.
Finally when the fiber alignment went into steady state, the structural features of fiber suspensions were not dependent on the Reynolds number but on the converging channel angle.
The main reasons for this discrepancy are loss of fiber alignment, voids and fiber compression due to resin shrinking during curing.
The relatively strong piezoresistivity in the two-lamina composite was probably due to increase in the degree of fiber alignment upon tension.