弹簧指数:又称旋绕比。用C=D/d表示.D表示弹簧中径,d表示弹簧钢丝直径。弹簧指数C影响弹簧的强度、刚度、稳定性及制造的难易。C值大,中径D较大钢丝直径较小,弹簧较软,刚性小,容易变形,容易绕制。C值小,则相反,弹簧较硬,刚性大,不易绕制。设计中,一般推荐取4≤C≤14。具体选择可参考小表: d/mm 0.2~0.4 0.5~1 1.2~2 2.5~6 7~16 ≥18 C=D/d 7-14 5-12 5-10 4-9 4-8 4-6
从这个数据中算出存储弹簧指数、绝对弹簧指数、衰减系数以及损失系数。
The storage spring constant, absolute stiffness, decay factor, and loss factor can be calculated.
以非线性弹簧-阻尼-质量块系统为研究对象,通过仿真计算,给出了系统健康监测数据与系统健康指数的对应关系。
The nonlinear spring-mass-dashpot system was used as the research object. The relation between system health monitoring data and health index was given through simulation.
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