【摘要】：基于Halpin-Tsai方程,引入纖維取向因子,建立了芳綸漿粕纖維增強(qiáng)氣壓砂輪內(nèi)橡膠層模量預(yù)測模型,描述了氣壓砂輪基體在動態(tài)變化過程中的應(yīng)力-應(yīng)變關(guān)系。通過ANSYS仿真分析,得出了氣壓砂輪在不同纖維體積分?jǐn)?shù)下的應(yīng)力-應(yīng)變規(guī)律,證實了芳綸漿粕纖維增強(qiáng)方法可以改善砂輪基體接觸形變?nèi)毕輪栴}。采用混煉法制備了芳綸漿粕纖維增強(qiáng)的橡膠基體,觀測到了多維網(wǎng)狀纖維微觀分布結(jié)構(gòu),并采用拉伸試驗驗證了彈性模量預(yù)測模型。設(shè)計了芳綸漿粕纖維增強(qiáng)氣壓砂輪加工試驗。證明了經(jīng)芳綸漿粕纖維增強(qiáng)后的氣壓砂輪可以迅速提升工件表面質(zhì)量,并使劃痕損傷獲得一定的控制。
[Abstract]:Based on Halpin-Tsai equation and fiber orientation factor, the prediction model of rubber layer modulus in aramid pulp fiber reinforced pneumatic grinding wheel was established, and the stress-strain relationship of pneumatic wheel matrix during dynamic change was described. Through ANSYS simulation and analysis, the stress-strain law of pneumatic grinding wheel under different fiber volume fraction is obtained. It is proved that the method of aramid pulp fiber reinforcement can improve the problem of contact deformation of grinding wheel. The rubber matrix reinforced by aramid pulp fiber was prepared by mixing method. The microstructure of multi-dimensional reticulated fiber was observed and the prediction model of elastic modulus was verified by tensile test. The processing test of aramid pulp fiber reinforced pneumatic grinding wheel was designed. It is proved that the air pressure grinding wheel reinforced by aramid pulp fiber can rapidly improve the surface quality of the workpiece and control the scratch damage to a certain extent.
【作者單位】： 浙江工業(yè)大學(xué)特種裝備制造與先進(jìn)加工技術(shù)教育部重點實驗室;
【基金】：國家自然科學(xué)基金(51405444;511754711)
【分類號】：TG743

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