Vibrations and drifting motions of a post-capture spacecraft may lead to its instability and safety risk, which therefore need to be absorbed or isolated. However, it is expected that the vibrational energy is not wasted but harvested to power the wireless sensors. Motivated by this concept and inspired by the movement of a bird, a quadrilateral shape isolation system with an energy harvester is proposed for the simultaneous broadband vibration isolation and energy harvesting of the post-capture spacecraft. The governing equations of the proposed system are derived based on Hamilton’s principle. The corresponding dimensionless approximate analytical model is deduced based on the harmonic balance method and validated through the comparison with the numerical Runge–Kutta method. Simulation results demonstrate that compared with its counterpart without the energy harvester, the proposed system can further improve the broadband vibration isolation performance, and achieve the energy harvesting function simultaneously. The operation principle is the energy localization effect, which is demonstrated through the investigation on system dynamics. The guideline for improving the dual performances is proposed according to the parametric studies on the mass ratios, the equivalent stiffness and damping induced by the quadrilateral shape structures, and the mechanical and electrical parameters of the energy harvester.

捕获后航天器的振动和漂移运动可能导致其不稳定和安全风险，因此需要吸收或隔离。然而，预计振动能量不会被浪费，而是会被收集起来为无线传感器供电。受此概念的启发，并受到鸟类运动的启发，提出了一种带有能量收集器的四边形隔离系统，用于捕获后航天器的同步宽带振动隔离和能量收集。所提出系统的控制方程是基于哈密顿原理推导出来的。基于调和平衡法推导相应的无量纲近似解析模型，并通过与数值Runge-Kutta方法的对比验证。仿真结果表明，与没有能量收集器的对应​​系统相比，所提出的系统可以进一步提高宽带隔振性能，同时实现能量收集功能。其工作原理是能量局部化效应，这是通过系统动力学研究证明的。根据质量比、四边形结构引起的等效刚度和阻尼以及能量收集器的机械和电气参数的参数化研究，提出了提高双重性能的指导方针。其工作原理是能量局部化效应，这是通过系统动力学研究证明的。根据质量比、四边形结构引起的等效刚度和阻尼以及能量收集器的机械和电气参数的参数化研究，提出了提高双重性能的指导方针。其工作原理是能量局部化效应，这是通过系统动力学研究证明的。根据质量比、四边形结构引起的等效刚度和阻尼以及能量收集器的机械和电气参数的参数化研究，提出了提高双重性能的指导方针。