スポーツ工学　　自転車走行時の振動特性　第１報　　ロードレーサー車の特性

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  • Vibration Characteristics of Bicycles in the Driving State. 1st Report. Characteristics of Road Racer Bicycles.

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Two kinds of road racer bicycles are employed to research vibration characteristics of driving bicycles. After obtaing the natural frequencies and modes by vibration test in the non-driving state, practical driving tests are carried out. The acceleration of vibration in the middle of the handles and under the saddles are measured and the corresponding spectral density functions are calculated based on FFT method. The results show that in the driving bicycles, the dominant frequencies exist between 10 Hz and 50 Hz and the lower two modes in the non-driving state are excited.

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