摘要:
A fan includes a motor and an impeller. The motor includes a stationary portion and a rotating portion rotatably supported by the stationary portion. The stationary portion includes a stator and a bearing portion arranged inside of the stator. The rotating portion includes a rotor magnet arranged radially outside the stator; a shaft inserted in the bearing portion, and having an upper portion fixed to the impeller directly or through one or more members; and a thrust portion arranged axially opposite the bearing portion, and including an annular surface arranged around the shaft.
摘要:
A fan includes a motor and an impeller. The motor includes a stationary portion and a rotating portion rotatably supported by the stationary portion. The stationary portion includes a stator and a bearing portion arranged inside of the stator. The rotating portion includes a rotor magnet arranged radially outside the stator; a shaft inserted in the bearing portion, and having an upper portion fixed to the impeller directly or through one or more members; and a thrust portion arranged axially opposite the bearing portion, and including an annular surface arranged around the shaft.
摘要:
A fatigue failure diagnostic method of a turbocharger in accordance with the present invention is a method for diagnosing the fatigue failure of a turbocharger (5), comprising the steps of measuring the revolution speed of the turbocharger (5), computing an accumulated fatigue value (Ft) based on the measured revolution speed, and executing the fatigue failure judgment of the turbocharger (5) by comparing the computed accumulated fatigue value (Ft) and the prescribed fatigue limit value (F1).
摘要:
The present invention relates to the creating of an aircrew flight scheduling pattern as a time series pattern, and aims at facilitating the effective crew flight scheduling pattern creation by applying a genetic algorithm. A plurality of flight strings are created based on link relations among flights regarded as elements for one day which is defined as a first time span. A genetic algorithm is executed for each flight string, and daily crew flight scheduling patterns are created based on the most suitable evaluation value flight strings. For one month which is defined as a second time span, a monthly crew flight scheduling pattern is created based on the most suitable evaluation value daily pattern strings in the same way by regarding the daily crew flight patterns for 30 days as elements.