0.3Dy0.7Fe2合金壓磁效應(yīng)的影響，討論了單獨(dú)應(yīng)力和單獨(dú)磁場(chǎng)作用下磁致伸縮材料內(nèi)磁通密度的變化特性；其次，提出了基于預(yù)加載荷方法和基于沖擊應(yīng)力方法的理論模型思路，并分別探討了2種模型建立方法在復(fù)合式能量采集器設(shè)計(jì)中最大壓磁系數(shù)獲取的準(zhǔn)則；最后，完成了能量采集器的大壓磁系數(shù)獲取方法的可靠性試驗(yàn)，實(shí)驗(yàn)結(jié)果與理論設(shè)計(jì)的結(jié)果吻合較好。該模型能夠快速、準(zhǔn)確地獲得不同應(yīng)用環(huán)境下復(fù)合式能量采集器的壓磁特性，并可用于獲取大壓磁系數(shù)的復(fù)合式能量采集器構(gòu)造及設(shè)計(jì)。;A simplified computational model for obtaining large piezomagnetic effect of magnetostrictive-electromagnetic hybrid vibration energy harvester was presented. During the model establishment, the influence of compressive stress ?σ and magnetic field ΔH on the piezomagnetic effect of Tb0.3Dy0.7Fe2 alloy was studied, and their separate influence on magnetic flux density ?B of magnetostrictive material was investigated. Then, two methods, pre-loads-based method and impact stress-based method, were used to discuss the optimal criterion of hybrid piezomagnetic effect for the fabrication of magnetostrictive-electromagnetic generator. Finally, the modeling accuracy for obtaining large piezomagnetic effect was testified, and the experiment and theoretical results were in good agreement. Results show that the modeling can efficiently and accurately obtain the piezomagnetic effect for hybrid magnetostrictive material-based harvester under different application environments, which is of significance for design and fabrication of magnetostrictive-electromagnetic hybrid vibration energy harvester for obtaining large piezomagnetic effect."/>