Boxida Supports Chinese Academy of Sciences: High-End Solution for Spacecraft Attitude Control Simulator Base

Project Background and Execution Period: 2021

In the aerospace sector, ground simulation testing is critical for validating spacecraft performance in orbit. In 2021, the Chinese Academy of Sciences (CAS) faced stringent challenges regarding ultimate stability and dynamic precision for test bases while advancing a cutting-edge spacecraft attitude control simulator R&D project. As CAS's long-term trusted supplier of precision equipment bases, Boxida was invited to participate in this product development. We provided an integrated solution based on “mineral castings + linear motor modules,” aiming to deliver an ultra-stable physical platform for spacecraft attitude simulation.

Technical Challenges and Requirements

The spacecraft attitude control simulator must replicate satellite rotation and positioning under microgravity conditions, imposing extreme demands on the base's dynamic rigidity and thermal stability. Traditional granite or steel structures are prone to micro-deformation from environmental temperature fluctuations during prolonged operation. Their inherent damping limitations also fail to fully eliminate high-frequency vibration interference. Such minute instabilities are amplified in precision attitude simulations, directly compromising test data authenticity and reliability. Consequently, the client required a novel base solution combining high damping, low thermal expansion, and smooth drive characteristics.

Bozhidar Solution: Dual Innovation Driven by Materials

Addressing these challenges, Bozhidar's R&D team departed from conventional approaches. They adopted a proprietary high-performance mineral casting material as the base structure and integrated high-precision linear motor modules.

Mineral casting (epoxy resin granite) represents Bozhida's core competitive advantage. Compared to traditional metals, this material delivers exceptional vibration damping properties, effectively absorbing micro-vibrations generated by motor movement and external environments to ensure “silent” stability during dynamic operations. Its extremely low thermal expansion coefficient guarantees consistent geometric precision across varying laboratory temperatures.

Combined with the linear motor module, this achieves direct drive. Eliminating mechanical transmission backlash and friction not only enhances motion smoothness but also enables nanometer-level micro-motion control. The “stability” of the mineral casting paired with the “precision” of the linear motor establishes a near-ideal inertial reference benchmark for the attitude simulator.

Development Process and Deep Collaboration

Throughout project execution, Bozhida maintained a close collaborative R&D model with the Chinese Academy of Sciences research team. Throughout 2021, engineers from both sides conducted multiple iterations on the base's structural topology optimization, mineral casting process formulation, and motor control algorithms. Bozhida did not merely supply standard components but deeply understood the motion spectrum of aerospace simulation, customizing the internal rib structure of the base to maximize material performance. During assembly and debugging, the team prioritized dynamic response characteristics post-system integration. Through iterative testing, they ensured platform stability under complex motion trajectories, relying not on isolated metrics but on holistic system performance as the delivery benchmark.

Project Value and Outlook

This solution's successful delivery significantly enhances the testing accuracy and repeatability of spacecraft attitude control simulation systems, providing robust ground verification support for related space missions. This collaboration not only validates the applicability of Bozhida's mineral casting technology in cutting-edge scientific research but also signifies the maturity of domestically produced high-end functional components in aerospace support capabilities. Moving forward, Bozhida will continue to deepen its expertise in precision base technology, driving the advancement of high-end equipment through innovative materials to provide more reliable foundational technical support for the global aerospace and precision manufacturing sectors.