Kinematic Synthesis Using Reinforcement Learning

Vermeer, K.A.; Kuppens, Reinier; Herder, Just L.

doi:10.1115/detc2018-85529

Cited by 11 publications

(1 citation statement)

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“…Reinforcement learning (RL) offers one way to achieve this goal. For example, Vermeer [17] used temporal difference (TD) learning to synthesize mechanism designs with desired output trajectories. Lee et al [18] used a DQN to design a microfluidic device which led to a target flow shape.…”

Section: Inverse Design Problemmentioning

confidence: 99%

Range-GAN: Range-Constrained Generative Adversarial Network for Conditioned Design Synthesis

Nobari¹,

Chen²,

Ahmed³

2021

Preprint

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Typical engineering design tasks require the effort to modify designs iteratively until they meet certain constraints, i.e., performance or attribute requirements. Past work has proposed ways to solve the inverse design problem, where desired designs are directly generated from specified requirements, thus avoid the trial and error process. Among those approaches, the conditional deep generative model shows great potential since 1) it works for complex high-dimensional designs and 2) it can generate multiple alternative designs given any condition. In this work, we propose a conditional deep generative model, Range-GAN, to achieve automatic design synthesis subject to range constraints. The proposed model addresses the sparse conditioning issue in data-driven inverse design problems by introducing a label-aware self-augmentation approach. We also propose a new uniformity loss to ensure generated designs evenly cover the given requirement range. Through a real-world example of constrained 3D shape generation, we show that the label-aware selfaugmentation leads to an average improvement of 14% on the constraint satisfaction for generated 3D shapes, and the uniformity loss leads to a 125% average increase on the uniformity of generated shapes' attributes. This work laid the foundation for data-driven inverse design problems where we consider range constraints and there are sparse regions in the condition space.

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Section: Inverse Design Problemmentioning

confidence: 99%