Dielectric elastomers (DEs), as a type of intelligent materials, have the characteristics of light weight, high energy density, high conversion efficiency, and damping effect, and thus can achieve the potential dual–use value of concurrent vibration mitigation (VM) and energy harvesting (EH) by combining with mechanical structures. This paper investigates the vibro–impact dielectric elastomer oscillator (VI DEO) and the proposed rolling VI DEO (RVI DEO) to achieve or enhance the potential dual–use value of DE oscillators. First, the schematics of the VI DEO and the RVI DEO are elaborated in detail. Then, the two dynamics analysis models of the linear oscillator (LO)–VI DEO and LO–RVI DEO systems are developed. On this basis, the VM and EH performances of the two DE oscillators under transient and harmonic excitations are numerically studied. It is demonstrated that the two DE oscillators have the most effective VM performance when the LO–VI DEO and LO–RVI DEO systems behave most efficiently in the 1:1 resonance vibro–impact regime with targeted energy transfer (TET). Hence, to achieve this response regime, the influences of the parameters such as the ball's mass, impact distance, pre–stretched ratio and friction coefficient of the two DE oscillators on their VM and EH performances are investigated one by one. The research results show that the most effective VM can only be achieved by adjusting the ball's mass, and the largest output power is generated in the resonance region. Hence, we further perform multi–parameter optimization to find the two DE oscillators with the best performance. Based on the multi–parameter optimization results, the performances of the two optimal oscillators are evaluated under mid–energy level harmonic and variable–frequency excitations with different amplitudes, and it is proved that both optimal DE oscillators not only have good performances, but also the RVI DEO has a better robustness.

介电弹性体（DEs）作为一种智能材料，具有轻质、高能量密度、高转换效率和阻尼效应等特点，因此可以实现同时减振（VM）和减振（VM）的潜在双重用途价值。与机械结构相结合的能量收集（EH）。本文研究了振动冲击介电弹性体振荡器 (VI DEO) 和拟议的滚动 VI DEO (RVI DEO)，以实现或增强 DE 振荡器的潜在双重用途价值。首先详细阐述VI DEO和RVI DEO的原理图。然后，开发了线性振荡器（LO）–VI DEO 和 LO–RVI DEO 系统的两种动力学分析模型。在此基础上，对两种DE振荡器在瞬态和谐波激励下的VM和EH性能进行了数值研究。结果表明，当 LO–VI DEO 和 LO–RVI DEO 系统在具有目标能量转移 (TET) 的 1:1 共振振动冲击状态下表现最有效时，两个 DE 振荡器具有最有效的 VM 性能。因此，为了实现这种响应状态，我们一一研究了两个DE振荡器的球质量、冲击距离、预拉伸比和摩擦系数等参数对其VM和EH性能的影响。研究结果表明，只有通过调整球的质量才能实现最有效的VM，并且在谐振区域产生最大的输出功率。因此，我们进一步进行多参数优化，以找到性能最佳的两个 DE 振荡器。基于多参数优化结果，对两种最优振子在中能级谐波和不同幅值变频激励下的性能进行了评估，结果证明两种最优DE振子不仅具有良好的性能，而且RVI DEO具有更好的鲁棒性。