摘要：闡述了摩擦學與振動的緊密聯系，提出了“振動摩擦”的概念和研究內容。結合振動沉樁過程，研究了振動摩擦系統慢變的動力學特性。根據對振動沉拔樁機工作狀態的分析，建立了非線性條件下樁機-樁-土系統的力學模型和動力學微分方程，利用漸進法對非線性方程進行了求解，并對樁機的質量慢變非線性系統進行了分析和動力學方程的求解，為進一步研究振動摩擦機理提供了依據。
　　關鍵詞：摩擦學，振動摩擦；慢變；振動沉樁

　　Abstract:Intimate connection of tribology and vibration was expatiated and put forward the new concept and content of “vibration friction”. Combining with vibration pile driving, nonlinear dynamics characteristics were studied for vibration friction system with slow varying. According to the analysis of vibration pile driving work condition, the dynamic model and differential equation were given in this paper. The analytical solution was got by evolutionary method. And nonlinear dynamics analysis was made for mass slow-varying nonlinear system of vibration pile driving, which gave a strong basis for further study on vibration friction mechanism.

　　Key words: tribology, vibration friction, slow-varying, vibration pile driving

　　聯系方式

　　滕云楠：ynteng@me.neu.edu.cn

責任編輯：趙澤南

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