The authors apply the transfer influence coefficient method to the 3. dimensional vibration analysis of beam with multi - joints and formulate a general algorithm to analyse the longitudinal, flexural and torsional coupled forced vibration. In this paper, a structure which is mainly found in the robot arms, cranes and so on, has some crooked parts, subsystems and joints, but has no closed loop in this system. It is modeled as the beam of a distributed mass system with massless translational, rotational and torsional springs in each node, and joint elements of release or roll at node which the displacement vector is discontinuous. The superiority of the present method to the transfer matrix method in the computation accuracy was confirmed from the numerical computation results. Moreover, we confirmed that boundary and intermediate conditions could be controlled by varying the values of the spring constants.
A Method of Vibrational Analysis Using a Personal Computer A Suggested Transfer Influence Coefficient Method ,
A. Sueoka;T. Kondou;D. H. Moon;K. Yamashita ,
The Memoirs of the Faculty of Engineering Kyushu University / v.48,pp.31-46, 1988
傅達影響係數法에 의한 彈性支持를 갖는 원통형 쉘구조물의 自由振動解析 ,
한국소음진동공학회지 / v.4,pp.469-478, 1994