The present invention focused on the driving-related values, such as the power-saving, quiet in the electrodynamic type vibration test equipment, taking into account the operating limits of the vibration generator, driving-related value attention is best in order to satisfy a predetermined condition to provide an apparatus for determining the operating conditions.
A a predetermined vibration in the state that gave the specimen 20, the operating condition determining apparatus 100 is excitation current, the drive current is measured, vibration generator 1 calculates a required excitation force to be generated. Based on the calculated required exciting force, in the case of variously changing the excitation current, and calculates the drive current necessary for obtaining the required excitation forces. Further, for each the respective exciting currents, by changing the assumed cooling capacity of the cooling blower 16, the exciting coil 4 in each case of operating the vibration generator 1 by the respective assumed exciting current and the assumed driving current of the drive coil 10 the temperature was estimated to calculate the power consumption of the power and cooling blower 16 in each coil. Then, among those satisfying the temperature condition, the selection of optimum operating conditions based on the interest the driving-related values.
.TECHNICAL