Minimizing vibration levels of dynamic components at their operating frequency range has been a widely studied topic in engineering. However, the design of structures that satisfy geometric constraints and technical performances is an ongoing challenge. In this work, a topology optimization procedure based on the Bi-directional Evolutionary Structural Optimization (BESO) algorithm is performed to maximize the natural frequency separation interval of an elongated structure. The issues of disconnected and trivial solutions are solved using a connectivity constraint. It is imposed by a proposed procedure based on the heat flux solution of an auxiliary system. An assessment of the feasibility of the structure is done by verifying its accordance with manufacturing and design constraints. The optimized structure was manufactured and validated experimentally. The implemented process produces topologies that maximize the natural frequency separation and reduce the mass of the structure. The obtained results demonstrate the effectiveness of the proposed procedure at satisfying geometric design constraints and technical performances.

最小化动态部件在其工作频率范围内的振动水平一直是工程中广泛研究的课题。然而，满足几何约束和技术性能的结构设计是一个持续的挑战。在这项工作中，执行基于双向演化结构优化 (BESO) 算法的拓扑优化程序，以最大化细长结构的固有频率分离间隔。使用连通性约束解决了断开连接和琐碎解决方案的问题。它由基于辅助系统的热通量解的建议程序强加。结构可行性的评估是通过验证其与制造和设计约束的一致性来完成的。优化的结构被制造和实验验证。所实施的过程产生了最大化固有频率分离并减少结构质量的拓扑。获得的结果证明了所提出的程序在满足几何设计约束和技术性能方面的有效性。