The discovery of fast radio burst (FRB) 200428 from galactic SGR J1935+2154 makes it possible to measure rotational changes accompanied by FRBs and to test several FRB models which may be simultaneously associated with glitches. Inspired by this idea, we present order of magnitude calculations to the scenarios proposed. FRB models such as global starquakes, crust fractures, and collisions between pulsars and asteroids/comets are discussed. For each mechanism, the maximum glitch sizes are constrained by the isotropic energy release during the X-ray burst and/or the SGR J1935+2154-like radio burst rate. Brief calculations show that, the maximum glitch sizes for different mechanisms differ by order(s) of magnitude. If glitches are detected to be coincident with FRBs from galactic magnetars in the future, glitch behaviours (such as glitch size, rise time-scale, the recovery coefficient, and spin-down rate offset) are promising to serve as criterions to distinguish glitch mechanisms and in turn to constrain FRB models.

中文翻译：

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来自 SGR J1935 的与快速无线电突发和故障相关的约束机制

从银河 SGR J1935+2154 中发现快速射电暴 (FRB) 200428 使得测量伴随 FRB 的旋转变化和测试可能同时与毛刺相关的几个 FRB 模型成为可能。受这个想法的启发，我们对所提出的场景进行了数量级的计算。讨论了 FRB 模型，例如全球星震、地壳裂缝以及脉冲星和小行星/彗星之间的碰撞。对于每种机制，最大毛刺大小受 X 射线爆发期间的各向同性能量释放和/或 SGR J1935+2154 类无线电爆发率的限制。简要计算表明，不同机制的最大毛刺大小不同数量级。如果未来检测到故障与来自银河磁星的快速射电暴同时发生，故障行为（例如故障大小、