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不用电的“太空变形术”——无源装置驱动卫星天线“丝滑”展开
Ke Ji Ri Bao· 2025-05-12 23:30
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].
【西咸新区】扎实推进“科创自贸”建设
Shan Xi Ri Bao· 2025-05-07 22:50
Group 1 - The core viewpoint is that Xixian New Area is promoting innovation and development in the technology sector through various initiatives, including the establishment of international cooperation bases and innovative financing policies [1][2]. - Xixian New Area has established 52 international cooperation bases and 6 offshore entrepreneurship platforms, with 26 international cooperation projects implemented [1]. - The area has launched innovative pilot programs such as "pay after use" and "invest first, equity later" to accelerate the development of technology innovation platforms [1]. Group 2 - Xixian New Area has released a comprehensive policy package with 296 clauses to support financing for technology enterprises, which includes the construction of 29 incubation facilities at the municipal level or above [2]. - The technology contract transaction volume for 2024 is projected to reach 35.03 billion yuan, representing a year-on-year increase of 56.4%, with 6,878 technology-based SMEs registered, up 38.4% [2]. - The area has introduced a three-year action plan titled "Ten Thousand Talents Gather in Xixian," successfully attracting 544 high-level talents and establishing 5 academic expert workstations [2]. Group 3 - Xixian New Area is fostering cross-regional collaborative development by forming a "technology going global" innovation consortium and establishing the first professional service team for technology enterprises in Northwest China [3]. - The area has signed cooperation agreements with various regions to facilitate cross-province services and remote evaluation processes [3]. - The local government aims to implement a free trade zone enhancement strategy to align with international high-standard economic and trade rules, supporting the overall "technology innovation free trade" development in Shaanxi province [3].