機械系統(tǒng)開關(guān)類元件的混合鍵合圖建模
[Abstract]:It is difficult to express the nonlinear dynamics of switch components in mechanical system by bond graph. The common dry friction, clearance contact impact pair and unidirectional irreversible transmission are studied, and the mechanism of their action is analyzed. This paper introduces the hybrid bond graph modeling method of switch class quantity, and presents a new bond graph modeling method and bond graph model for switch components by using the concept of power junction structure (SPG). Taking the mechanical system including dry friction, clearance contact impact pair and one-way irreversible transmission as an example, according to the bond graph model of switch components and the working principle of mechanical transmission, the bond graph model of the whole system is established, and the state equation of the whole system is extracted. It is verified by simulation calculation. The results show that the model can not only express the dynamic characteristics of switch components under different operating modes, but also keep the causality unchanged when the system is in any state of motion. The simulation results show that the modeling method is correct and feasible.
【作者單位】: 中南大學機電工程學院;
【基金】:國家自然科學基金資助項目(51175518) 湖南省科技型中小企業(yè)技術(shù)創(chuàng)新基金立項項目(12C26214305029)~~
【分類號】:TH13
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【共引文獻】
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