Experimental bifurcation analysis for hybrid testing methods 2

在混合测试中，一个关键的系统部件（如飞机起落架或桥梁电缆）在实验室中进行测试，就好像它是一个更大的系统的一部分。更大系统的缺失部分（飞机或桥梁的其余部分）在计算机上进行数值模拟，并通过传感器和致动器与关键部件耦合。我们计划通过开发新的启发式工具来释放这种数值-实验测试技术的全部潜力，这些工具将允许人们自动找到并跟踪相关系统参数的稳定性边界。这将是一个重大的进步，从目前的方法，改变一个单一的参数一步一步，然后记录发生了什么。我们建议开发和实施这些新方法的两个机械试验台系统的基本相关性，即，adriven阻尼振荡器和磁流变阻尼器系统。

In hybrid testing a critical system component (such as aircraft landing gear or bridge cable) is tested in the laboratory as if it were part of amuch larger system. The missing part of the larger system (the restof the aircraft or bridge) is simulated numerically on a computer andcoupled to the critical component via sensors and actuators.We plan to unlock the full potential of this numerical-experimentaltesting technique by developing novel mathematically-inspired toolsthat will allow one to automatically find and then track stabilityboundaries in relevant system parameters. This will constitute a majorstep forward from the present approach of changing a single parameterstep-by-step and then recording what happens. We propose to develop and implement these new methods for two mechanical test bed systems of fundamental relevance, namely, adriven pendulum-oscillator and a magneto-rheological damper system.