Closed-loop control of a nonlinear vibrator-profile system penetrating a heterogeneous ground

该研究项目的目标是开发一种非线性闭环控制器，以优化振冲驱动过程，最大限度地减少安装时间和传递到周围环境的振动。因此，本文将建立一个描述振动器-桩-土相互作用的简化非线性力学模型并进行仿真。从简化的力学模型出发，推导出一种控制器，并进行了仿真验证。计划建立一个代表振冲掘进过程的实验装置。针对不同的土体条件和不同的桩型进行了相应的模型试验。随后，将进行数值模拟以评估模型结果在实际场景中的扩展，并考虑考虑偏心力矩控制的额外自由度。

The objective of the research project is the development of a nonlinear closed-loop controller to optimize the vibrodriving process, minimizing the installation time and the vibrations transmitted to the surroundings. Therefore, a simplified nonlinear mechanical model describing the vibrator-pile-soil interaction will be developed and simulated. From the simplified mechanical model, a controller is derived and tested in simulation. The construction of an experimental set-up representing the vibrodriving process is planned. Corresponding model tests are used to test the derived controller for different soil conditions and pile profiles. Afterward, numerical simulations will be performed to assess the extension of the results in the model to real-life scenarios, and an extra degree of freedom considering the control of the eccentric moment is considered.