Designing Architecture in a Bridge Engineering Simulation

Abstract

In this paper, we used a bridge engineering simulator as an environment to search for low-cost architecture designs while enforcing close-to-real-world physical constraints on the design. The environment's built-in architecture validation functions are used in each step of the reinforcement learning episode. We designed the observation space and reward functions to enhance the bridge engineering simulator's capabilities for reinforcement learning tasks. We evaluated the performance of the proximal policy optimization (PPO) and PPO-LSTM agents using a variation of three different observation space types and two reward functions. The results show that the novel adjacency-map-based observation space and a positive step reward (in an otherwise negative reward function) produce the best performance for the PPO agent.

Department(s)

Computer Science

Document Type

Conference Proceeding

DOI

10.1109/ICPS59941.2024.10639984

Keywords

architecture, engineering, reinforcement learning, RL environment design, simulation

Publication Date

1-1-2024

Journal Title

2024 IEEE 7th International Conference on Industrial Cyber Physical Systems Icps 2024

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