Creation and FFT Analysis of Periodic Waveform

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概要

• 論文の詳細を見る

• We created periodically varying waveforms, which are rectangular, trapezoidal, triangular, and quasi-sinusoidal waveforms, by using the originally presented equations and we have investigated the effect of waveform on the frequency characteristics by FFT analysis. Under a excitation vibration having a symmetric quasi-sinusoidal waveform, the fundamental frequency of the system and frequencies at its odd numbered cycles appear. The fundamental frequency of the system and its integral-multiple frequencies appear under excitation vibration having an asymmetric quasi-sinusoidal waveform with the peaks shifted to right or left. Under vibration having a quasi-sinusoidal waveform, an angular frequency of 1 appears in addition to the excitation frequency when damping terms are not included, but it does not appear when damping terms are included.

• 一般社団法人 日本機械学会の論文

著者

• KOIZUMI Tadayoshi

  Department of Mechanical Engineering for Production, Tokyo Institute of Technology

• KOIZUMI Tadayoshi

  Department of mechanical engineering informatics, MEIJI

• TAUE Katsuhira

  Department of mechanical engineering informatics, MEIJI

関連論文

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• Chaotic Characteristics under an Asymmetric Restoring Force
• Small Vibration of System Including Rolling Friction with Starting Rolling Displacement
• Creation and FFT Analysis of Periodic Waveform

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