【摘要】：針對閉式齒輪傳動系統(tǒng)動態(tài)分析理論求解復(fù)雜,試驗(yàn)方法只能測得表面振動數(shù)據(jù)的問題,對某二級行星減速器進(jìn)行三維建模生成有限元模型,完成有限元模態(tài)分析;通過模態(tài)試驗(yàn),驗(yàn)證了模擬的正確性;利用ANSYS瞬態(tài)動力學(xué)分析的完全法(full),考慮時變嚙合剛度、綜合嚙合誤差、齒側(cè)間隙及阻尼比等非線性因素的影響,實(shí)現(xiàn)了動態(tài)模擬和臺架試驗(yàn)對比。研究結(jié)果表明:有限元法所得前六階固有頻率與試驗(yàn)結(jié)果接近,頻率最大誤差為8.12%,振型吻合;動態(tài)模擬結(jié)果與臺架試驗(yàn)測得的振動加速度平均值誤差較小,振動規(guī)律基本一致。以此為依據(jù),獲取了輸入端與輸出端的振動加速度和齒圈嚙合點(diǎn)應(yīng)力變化曲線,與工程實(shí)際相符,有限元預(yù)測方法可彌補(bǔ)試驗(yàn)法在分析內(nèi)部振動響應(yīng)方面的不足。
[Abstract]:To solve the problem that the dynamic analysis theory of closed gear transmission system is complex and the test method can only measure the surface vibration data, the finite element model is created by three-dimensional modeling of a two-stage planetary reducer, and the finite element modal analysis is completed. The correctness of the simulation is verified by modal test, and the influence of nonlinear factors, such as time-varying meshing stiffness, combined meshing error, tooth clearance and damping ratio, is considered by using the complete method of ANSYS transient dynamic analysis, (full),. Dynamic simulation and bench test are realized. The results show that the first six natural frequencies obtained by the finite element method are close to the experimental results, the maximum frequency error is 8.12 and the vibration mode is in agreement with the dynamic simulation results, and the average error of the vibration acceleration measured by the dynamic simulation method is smaller than that of the vibration acceleration measured by the bench test, and the vibration law is basically consistent. On this basis, the vibration acceleration curves of input and output ends and the stress change curves of gear ring meshing point are obtained, which are in accordance with the engineering practice. The finite element prediction method can make up the deficiency of the test method in analyzing the internal vibration response.
【作者單位】： 西安航空職業(yè)技術(shù)學(xué)院航空制造工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51305288) 西安航空職業(yè)技術(shù)學(xué)院2016-2017年度自選綜合科研項(xiàng)目(16XHKY-001)
【分類號】：TH132.41

【相似文獻(xiàn)】

相關(guān)期刊論文 前2條

1 孫影;戚補(bǔ)強(qiáng);;閉式齒輪傳動液壓系泊絞車的設(shè)計[J];流體傳動與控制;2012年05期

2 ;[J];;年期

，

本文編號：2291693