不用电的“太空变形术”——无源装置驱动卫星天线“丝滑”展开

Core Viewpoint - The development of a novel "multi-axis conjugate motion device" by Xi'an Light Industry Watch Research Institute significantly enhances satellite antenna deployment without the need for electrical power, addressing previous limitations in satellite communication capabilities [1][2]. Group 1: Technology Innovation - The new antenna design allows for non-circular configurations that maximize effective area when deployed, improving satellite communication capacity and precision [1]. - The device operates without electric motors, reducing failure rates and enhancing reliability in extreme space conditions [2]. - The design incorporates a unique energy storage system that utilizes elastic materials to provide power for the deployment process [3]. Group 2: Mechanism and Functionality - The device consists of three core modules: an energy storage module, a conjugate transmission mechanism, and a controlled release system [3][4]. - The conjugate transmission mechanism employs a spatial cam design inspired by race track curves, enabling smooth conversion of linear motion into complex three-dimensional movements [3]. - The controlled release system is based on the escapement mechanism of mechanical watches, ensuring precise control over the deployment speed [4]. Group 3: Development Challenges - The development faced significant challenges in coordinating numerous cam mechanisms, necessitating innovative modeling techniques [5]. - The research team utilized motion simulation surface modeling technology to create a digital prototype, allowing for efficient optimization of the design [5]. - The integration of precision timing technology from watchmaking into aerospace applications represents a significant advancement in China's space technology capabilities [5].