A novel resilient variable friction damper (RVFD) with a simple construction was proposed. To analyze the effects of loading rate on the stability and energy dissipation performance of the RVFD, two RVFDs were tested under different loading rates and the hysteretic behaviors of the compared with that of the traditional constant friction dampers. Then the peak force, energy dissipation behavior, uneven gap opening of the grooved outer plates (GOPs), and performance of the disc springs under different loading rates were studied. The results show that although no self-centering system was provided, only the RVFDs without a self-centering system still can exhibit stable self-centering performance and effective energy dissipation behaviors, especially with due to the using e of athe grooved steel plates with greater groove angle. When the loading rate is less than 10 mm/s, the peak forces of the RVFD slightly decrease with the increase in loading rates, while when the loading rate is greater than 10 mm/s, its effects could be neglected. The uneven gap opening of the GOPs influences the clamping forces of the disc springs in the bolts under different loading amplitudes. The disc springs in the RVFDs not only provide the increasing clamping forces for energy dissipation and the restoring forces for self-centering behavior, but also dissipate the energy, which accounts for about 10% of the total energy dissipation of the RVFD.

提出了一种结构简单的新型弹性可变摩擦阻尼器（RVFD）。为了分析加载速率对 RVFD 稳定性和耗能性能的影响，在不同加载速率下测试了两种 RVFD，并与传统恒摩擦阻尼器的滞回行为进行了比较。然后研究了峰值力、能量耗散行为、带槽外板 (GOP) 的不均匀间隙开口以及碟形弹簧在不同负载率下的性能。结果表明，虽然没有提供自定心系统，但只有没有自定心系统的 RVFDs 仍然可以表现出稳定的自定心性能和有效的能量耗散行为，特别是由于使用了具有更大槽角。当加载速率小于 10 mm/s 时，RVFD 的峰值力随着加载速率的增加而略有下降，而当加载速率大于 10 mm/s 时，其影响可以忽略不计。GOP 的不均匀间隙开口会影响不同载荷幅度下螺栓中碟形弹簧的夹紧力。RVFD 中的碟形弹簧不仅为能量耗散提供增加的夹紧力和为自定心行为提供恢复力，而且还耗散能量，约占 RVFD 总能量耗散的 10%。GOP 的不均匀间隙开口会影响不同载荷幅度下螺栓中碟形弹簧的夹紧力。RVFD 中的碟形弹簧不仅为能量耗散提供增加的夹紧力和为自定心行为提供恢复力，而且还耗散能量，约占 RVFD 总能量耗散的 10%。GOP 的不均匀间隙开口会影响不同载荷幅度下螺栓中碟形弹簧的夹紧力。RVFD 中的碟形弹簧不仅为能量耗散提供增加的夹紧力和为自定心行为提供恢复力，而且还耗散能量，约占 RVFD 总能量耗散的 10%。