CAJ | 학술논문

应用解析法对52 m长混凝土泵车的五节臂系统进行振动特性分析。采用拉格朗日第二类方程和假设模态法建立了臂架系统的柔性多体动力学方程，基于建立的柔性模型对臂架系统进行了模态分析，并应用MATLAB软件对模态进行了数值求解，得出了臂架系统的前10阶固有频率及振型，并分析了不同的臂架参数对臂架系统固有频率的影响，最后通过现场测试实验对理论固有频率进行了验证。研究结果为臂架结构的进一步优化及系统振动的控制提供了理论依据。
응용해석법대52 m장혼응토빙차적오절비계통진행진동특성분석。채용랍격랑일제이류방정화가설모태법건립료비가계통적유성다체동역학방정，기우건립적유성모형대비가계통진행료모태분석，병응용MATLAB연건대모태진행료수치구해，득출료비가계통적전10계고유빈솔급진형，병분석료불동적비가삼수대비가계통고유빈솔적영향，최후통과현장측시실험대이론고유빈솔진행료험증。연구결과위비가결구적진일보우화급계통진동적공제제공료이론의거。
An analytic method was applied to study the vibration performance of the 52?meter?long five?boom system of truck mounted concrete pump.The combination of Lagrange’s equations of the second kind and assumed mode method was utilized to establish the flexible multi?body dynamics eG quation of the boom system.Based on the dynamic model,modal analysis was implemented and nuG merically solved by MATLAB,and the first ten nature frequencies and modes of vibration of the boom system were acquired.The impacts of the boom parameters on nature frequencies of the boom system were also analyzed.In addition,vibration experiments on a real boom system were implemenG ted to verify the theoretical nature frequency.The research results can provide basis for the improveG ment of the boom structure and the further research of vibration control.