The commercialization and the subsequent widespread adoption of self-driving electric cars have allowed environmentally friendly vehicles to have more interior space than traditional gas-powered vehicles, which has, in turn, led to a growing demand for space utilization of vehicle interiors. A monopost seat is an innovative, lightweight seat designed to maximize space utilization under the seat, with the insertion of a monopost columnar structure between the monopost seat guide rail and the floorboard. However, compared to standard seats, a monopost seat leaves room for improvement when it comes to safety considerations. In our previous study, dynamic simulations of a monopost seat were performed using LS-DYNA. The results revealed that the upper slide rail was the most vulnerable component. In this study, optimal designs were generated to make the upper sliding rail more stable and lighter. To this end, PIAnO, a comprehensive optimal design program, was employed to combine the orthogonal array design of experiments with metamodel-based optimal design methods to deliver the best possible model. A series of simulations confirmed the safety of the new model, which was a significantly improved version of the existing design in terms of stability and weight.

自动驾驶电动汽车的商业化和随后的广泛采用，使得环保汽车比传统燃油汽车拥有更多的车内空间，进而导致对汽车内部空间利用的需求不断增长。单柱座椅是一种创新的轻型座椅，旨在最大限度地利用座椅下方的空间，在单柱座椅导轨和地板之间插入单柱柱状结构。然而，与标准座椅相比，单柱座椅在安全方面还有改进的空间。在我们之前的研究中，使用 LS-DYNA 对单柱座椅进行了动态模拟。结果显示，上滑轨是最容易损坏的部件。在这项研究中，进行了优化设计，使上滑轨更稳定、更轻。为此，采用综合优化设计程序 PIAnO 将实验的正交阵列设计与基于元模型的优化设计方法相结合，以提供最佳模型。一系列模拟证实了新模型的安全性，该模型在稳定性和重量方面是现有设计的显着改进版本。