Centrifuges have played an important role in the development of the aerospace industry.
Release time:
2012-12-14
Overview:
As the aerospace industries of various countries flourish, humanity’s exploration of space is steadily deepening. You may be particularly impressed by large-scale spacecraft such as rockets, probes, and spaceships—but in fact, centrifuges also play a crucial role in the development of the aerospace industry. Centrifuges have a wide range of applications in aerospace, continually driving forward the advancement of space exploration.
First, centrifuges can simulate hypergravity conditions. To help astronauts adapt to the physiological responses triggered by high gravitational accelerations, training must rely on centrifuges. Typically, conventional centrifuges can generate gravitational forces exceeding 1 g, while ultra-high-speed centrifuges can produce forces as high as 10³ to 10⁵ g. From launch to return, spacecraft undergo repeated transitions between hypergravity, microgravity, and again to hypergravity. Consequently, the plants, animals, and humans living aboard these spacecraft must also adapt to the effects of both hypergravity and weightlessness. By conducting such studies, we can gain a deeper understanding of how changes in gravity affect living organisms and the role gravity has played in the evolutionary processes of life.
Moreover, conducting multiple biological studies in space is impractical—mainly due to high costs, the influence of other factors during spaceflight on experimental results, the inability to perform repeated experiments multiple times, and the challenge of bringing together experts from various research fields as well as relevant scientific instruments into space. This makes it highly meaningful and scientifically valuable to establish ground-based models that simulate the effects of hypergravity and microgravity encountered during spaceflight. On Earth, hypergravity can be achieved using centrifuges; centrifuges of varying sizes and designs can create different simulated environments. For instance, specialized vestibular research centrifuges, human centrifuges, body centrifuges, and animal centrifuges are used to conduct experiments targeting different objectives.
Generally, models that simulate the effects of hypergravity and microgravity during spaceflight are used to study acceleration physiology and hypergravity physiology. These include vestibular function training, evaluation of orthostatic tolerance, simulation and assessment of the push-pull effect, evaluation of ground-based pre-adaptation to space-related fluid shifts, simulation training for anti-gravity maneuvers, anti-gravity physiological training, and artificial gravity physiological training.