Analysis of mechanical dynamometer based on bifurcation theory
(0) In order to study the nonlinear characteristics of a mechanical dynamometer, a mathematic model isestablished using the Lagrangian method. The adequate and essential conditions for homoclinic orbit and periodical orbit of the system are discussed using the model. A bifurcation diagram of the external excitation is obtained through simulation. Simulation through the quasi-periodic route; Poincare sections and phase portraits validate the doubling bifurcation motion of the system. Therefore, typical nonlinear vibration can be found in this system, especially when the excitation frequency is changing between its lower and higher values. For the purpose of improving the measuring accuracy, the parameters of the mechanical dynamometer should be designed to keep the system in periodic and quasi-periodic motions.
dynamometer ezcitation frequency bifurcation numerical simulation
CUI Yi-hui YANG Zhi-an YUN Chao LI Gao-feng SUN Xue-gang
Robotics Institute, Beihang University, Beijing, China 100083 Tangshan College, Tangshan, Hebei Province, China 063000
国际会议
第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology
沈阳
英文
1-6
2008-09-15（万方平台首次上网日期，不代表论文的发表时间）