In diverse engineering disciplines, vibration isolation technology is indispensable for ensuring stability, accuracy, and safety. Traditional vibration isolation methods often compromise structural rigidity, particularly at ultra-low frequencies, presenting a significant challenge. To solve this issue, this study introduces cuttlebone-inspired lattice structures (CILS), which are fabricated using selective laser sintering (SLS) 3D printing and have an excellent energy absorption capacity as well as enhanced vibration isolation. This innovation enables effective low-frequency, full-band vibration isolation while preserving structural stiffness. CILS have an excellent energy absorption capacity of 1.411 J/mm3, which is due to the maintenance of a zero Poisson's ratio even under significant deformation (a strain of 0.5). Vibration isolation tests revealed that CILS provide comprehensive isolation across the frequency spectrum of 5–36.77 Hz. Furthermore, CILS effectively extends full-band vibration isolation to medium and high-frequency bands encompassing 56.01 Hz to 2000 Hz. The proposed design strategy offers a novel approach by integrating high energy absorption with extensive isolation capabilities, effectively overcoming traditional limitations to enhance engineering stability and safety.

中文翻译：

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通过受墨鱼骨启发的晶格结构实现全频带振动隔离和能量吸收


在不同的工程学科中，隔振技术对于确保稳定性、准确性和安全性是不可或缺的。传统的隔振方法通常会损害结构刚度，特别是在超低频下，这是一个重大挑战。为了解决这个问题，本研究引入了墨鱼骨启发的晶格结构（CILS），它是使用选择性激光烧结（SLS）3D打印制造的，具有出色的能量吸收能力以及增强的隔振能力。这项创新能够实现有效的低频、全频带隔振，同时保持结构刚度。 CILS 具有 1.411 J/mm3 的出色能量吸收能力，这是由于即使在显着变形（应变为 0.5）下也能保持零泊松比。隔振测试表明 CILS 可在 5–36.77 Hz 的频谱范围内提供全面的隔离。此外，CILS 有效地将全频段隔振扩展到 56.01 Hz 至 2000 Hz 的中高频频段。所提出的设计策略提供了一种新颖的方法，将高能量吸收与广泛的隔离功能相结合，有效克服传统限制，提高工程稳定性和安全性。