arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1601.02151cond-mat.soft
收藏

介电弹性体的广义机电稳定性

Generalized electromechanical stability of dielectric elastomers

Fengxian Xin, Tianjian Lu

摘要:

通过考虑麦克斯韦应力和机械应力的竞争,研究了介质弹性体驱动器的真实机电稳定性。现有的研究基于名义Hessian矩阵的正定性,仅解决了初始负荷路由稳定性,即,在没有预应力的情况下,天生稳定。我们将这种方法推广到任何预应力状态下的机电稳定性。对于足够大的预应力,我们demonstatre,玻恩稳定性的前一种方法可能会导致predcitions偏离相当大的真实结果。机电稳定性的真实方法可以帮助介电弹性体结构执行器的实际设计。

英文摘要:

We investigate the ture electromechanical stability of dielectric elastomer actuators by considering the competition between Maxwell and mechanical stresses. Existing researches based on the positive defiiteness of the nominal Hessian matrix addressed only the initial load routie stability, i.e., Born stability, in the absence of prestresses. We generalize this method to account for electromechanical stability at any prestress state. For large enough prestresses, we demonstatre that the previous method for Born stability may lead to predcitions that deviate considerably from the true results. The true method for electromechanical stablity can help the factual design of actuators constructed from dielectric elastomers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑