本文针对弹簧两体相互作用体系，创新性地提出了折合劲度系数方法.该方法通过建立等效参数(折合劲度系数），简化了多体问题的处理流程，让物理过程的呈现更为清晰.在学生能力培养方面，该方法借助“复杂系统”向“等效单体”的转化训练，助力学生掌握等效思维与问题重构能力；同时，通过公式推导启发学生领悟科学研究中的思维范式和强化等效思想的育人价值.

This work innovatively proposes the reduced stiffness coefficient method for the two-body problem involving spring interactions. By establishing equivalent parameters (reduced stiffness coefficients), this method simplifies the processing of multi-body systems and clarifies the presentation of physical processes. In terms of student competency development, the approach leverages transformation training from “complex systems” to “equivalent single bodies,” aiding students in mastering analogical thinking and problem reconstruction skills. Additionally, through formula derivation, it inspires students to grasp the thinking paradigms in scientific research and reinforces the educational value of the equivalence concept.