| 摘要 |
A controller of a cantilever evaluation system calculates a stream function valueψz(x, y; t+1) and vorticityωz(x, y; t+1) at a subsequent time step t+1 using boundary conditions according to displacement h(z; t) of a cantilever and velocityδh/δt(z; t), a stream function valueφz(x, y; t) and vorticityωz(x, y; t) in two-dimensional planes. The controller uses the calculated stream function valueφz(x, y) and vorticityωz(x, y) to calculate a fluid drag force acting on the cantilever. The controller substitutes the calculated fluid drag force into a displacement calculation equation to calculate the displacement h(z; t+1) of the one-dimensional beam at the subsequent time step t+1. The controller repeats such calculation for each grid point and further repeats it at each time step.
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