The transfer path analysis (TPA) has become a rather standard tool for solving noise and vibration problems, as it helps understanding the mechanisms responsible for the generation and transmission of those quantities. By better understanding the intricate role of multiple sources and propagation paths, it is possible to diagnose and propose effective modifications that would addresses such issues at specific target locations. Although originally an experimental approach, hybrid methods that include modeled sub-systems have been proposed, which allow the assessment of key system features even at stages prior to the construction of full physical prototypes. However, in classical TPA, the operational forces are characteristics of the complete system, which implies that, with each modification in one subsystem, it is necessary to redo all the tests for the correct determination of target functions. For this reason, in recent years, interest has been renewed in the development of faster and simpler techniques for analyzing energy transfer paths, which offer a compromise between workload and accuracy. More specifically, a set of methods called component-based TPA is highlighted, which consists of characterizing the excitation of a source through a set of equivalent forces (or even interface velocities) inherent only to the active subsystem. In this way, the responses at target locations on the passive subsystem could be calculated using these equivalent loads and the dynamics of the complete system, obtained numerically, experimentally or under a hybrid framework. This work presents a critical analysis of the component-based TPA methods and proposes the combined use of these methods with a classical TPA approach in the process of determining equivalent forces of the active subsystem. This set of equivalent forces, combined with the passive subsystem dynamics, allows the prediction of the vibrational behavior of the full assembly at targeted locations, without the need for a full experimental analysis of the assembled system. As the case study presented here consists of a modular academic setup, it allows the qualitative assessment of the method in distinct assembly boundary conditions, in which the subsystems are connected via rigid or flexible joints.

传输路径分析（TPA）已成为解决噪声和振动问题的相当标准的工具，因为它有助于理解负责这些量的生成和传输的机制。通过更好地理解多个源和传播路径的复杂作用，可以诊断并提出有效的修改方案，以解决特定目标位置的此类问题。尽管最初是一种实验方法，但已提出了包含建模子系统的混合方法，该方法甚至可以在构建完整物理原型之前的阶段就评估关键系统功能。但是，在传统的TPA中，操作力是整个系统的特征，这意味着在一个子系统中进行每次修改后，必须重新进行所有测试以正确确定目标功能。由于这个原因，近年来，人们对开发更快和更简单的用于分析能量传递路径的技术重新产生了兴趣，这种技术在工作量和准确性之间做出了折衷。更具体地说，着重介绍了一种称为基于组件的TPA的方法，该方法包括通过仅活动子系统固有的一组等效力（甚至接口速度）来表征源的激励。这样，可以使用这些等效负载和整个系统的动力学来计算无源子系统目标位置的响应，这些动力学可以通过数值，实验或在混合框架下获得。这项工作提出了对基于组件的TPA方法的批判性分析，并提出了在确定活动子系统的等效力的过程中将这些方法与经典TPA方法结合使用。这组等效力与无源子系统动力学相结合，可以预测整个组件在目标位置的振动行为，而无需对组装后的系统进行全面的实验分析。由于此处介绍的案例研究由模块化的学术机构组成，因此可以在不同的装配边界条件下对方法进行定性评估，在该条件下，子系统之间通过刚性或柔性接头连接。这组等效力与无源子系统动力学相结合，可以预测整个组件在目标位置的振动行为，而无需对组装后的系统进行全面的实验分析。由于此处介绍的案例研究由模块化的学术机构组成，因此可以在不同的装配边界条件下对方法进行定性评估，在该条件下，子系统之间通过刚性或柔性接头连接。这组等效力与无源子系统动力学相结合，可以预测整个组件在目标位置的振动行为，而无需对组装后的系统进行全面的实验分析。由于此处介绍的案例研究由模块化的学术机构组成，因此可以在不同的装配边界条件下对方法进行定性评估，在该条件下，子系统之间通过刚性或柔性接头连接。