本文選題：采煤機　切入點：多體系統(tǒng)動力學　出處：《機械強度》2016年01期 　論文類型：期刊論文

【摘要】：以剛柔耦合多體系統(tǒng)動力學理論為基礎,建立了采煤機截割部剛柔耦合模型,研究了內齒圈在嚙合過程中的動力學行為;根據(jù)采煤機在復雜煤層賦存條件工作時滾筒受力情況,基于Matlab編程模擬出滾筒的載荷文件。通過Recur Dyn多體動力學軟件進行仿真分析,得到采煤機內齒圈的應力分布及其與行星輪的接觸力和接觸力矩,與理論值進行比較驗證了其正確性;通過疲勞壽命計算,得到了內齒圈齒面的最小疲勞循環(huán)次數(shù),對內齒圈疲勞壽命的薄弱區(qū)域提出改進方法,延長其使用壽命。在產(chǎn)品設計時對其可靠性進行分析,降低了研發(fā)成本,為研究采煤機設備在大范圍剛性運動與柔性構件小變形運動時的應力和疲勞壽命情況提供了新的方法。
[Abstract]:Based on the theory of rigid-flexible coupling multi-body system dynamics, the rigid-flexible coupling model of cutting part of shearer is established, and the dynamic behavior of inner gear ring in meshing process is studied. The load file of the drum is simulated based on Matlab. The stress distribution of the gear ring in the shearer, the contact force and the contact moment between the gear and the planetary wheel are obtained through the simulation and analysis of Recur Dyn multi-body dynamics software. Compared with the theoretical value, the correctness of the method is verified, the minimum fatigue cycle number of the inner gear tooth surface is obtained by fatigue life calculation, and the improvement method is put forward for the weak region of the inner ring fatigue life. In order to prolong its service life and analyze its reliability in product design, the cost of research and development is reduced, which provides a new method for studying the stress and fatigue life of shearer equipment under the condition of large range rigid motion and small deformation movement of flexible members.
【作者單位】： 遼寧工程技術大學機械工程學院;
【基金】：中國煤炭工業(yè)科技計劃資助項目(MTKJ2009-264)資助~~
【分類號】：TD421.63
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本文編號：1593477