Purpose

The purpose of this study is to propose an improved design of PneuNets bending actuator which aims at obtaining larger deflection with the same magnitude of pressure. The PneuNets bending actuator shows potential application in the morphing trailing edge concept.

Design/methodology/approach

Finite element method is used to investigate the characteristics of the improved design bending actuator. Multiobjective optimal design of the PneuNets bending actuator is proposed based on the Gauss process regression models.

Findings

The maximum deflection is obtained when the height of the beams is smaller than half the height of the chambers. The spacing between chambers (beam length) has little effect on the deflection. Larger spacing could be used to reduce the actuator weight.

Originality/value

With the same pressure magnitude, the deflection of the improved design bending actuator is much larger than that of the baseline configuration. PneuNets bending actuator could increase the continuity of the aerodynamic surface compared to other actuators.

中文翻译：

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PneuNets弯曲执行器的设计与应用

目的

这项研究的目的是提出一种改进的PneuNets弯曲执行器设计，该设计旨在在相同压力值下获得更大的挠度。PneuNets弯曲执行器在变形后缘概念中显示出潜在的应用。

设计/方法/方法

有限元方法被用来研究改进设计的弯曲致动器的特性。基于高斯过程回归模型，提出了PneuNets弯曲执行器的多目标优化设计。

发现

当梁的高度小于室的高度的一半时，获得最大挠度。腔室之间的间隔（光束长度）对挠度影响很小。较大的间距可用于减少执行器重量。

创意/价值

在相同的压力大小下，改进设计的弯曲致动器的挠度比基线配置的挠度大得多。与其他执行器相比，PneuNets弯曲执行器可以增加空气动力学表面的连续性。