失重 [物理學(xué)] agravity; weightlessness; zero gravity; weight loss◇失重飛行 weightless flight; 失重狀態(tài) zero-g; the state of weightlessness; weightlessness
Effect of qianggu kangwei formula on osteoblasts cultured in vitro under simulated weightlessness 強骨抗萎方對模擬失重條件下體外培養(yǎng)成骨細(xì)胞的影響
The air bearing is the most important part of an attitude control system simulator for simulating a satellite moving in the weightless circumstance . performance of a satellite attitude simulation system based on air bearing is decided by the inertia matrix and gravity disturbance torque arising from a difference between mass center and rotation center , and air bearing can be used to simulate the algorithm of on - line mass - property parameters identification on the ground . so the problem of mass - property and gravity disturbance torque identification for satellite and air bearing is studied in this thesis 氣浮臺能夠模擬衛(wèi)星在軌失重條件下的姿態(tài)運動,是衛(wèi)星姿態(tài)控制系統(tǒng)物理仿真的核心部件,其轉(zhuǎn)動慣量和質(zhì)心偏移引起的重力干擾力矩等決定了基于氣浮臺的衛(wèi)星姿態(tài)物理仿真系統(tǒng)的性能,并且利用氣浮臺可以實現(xiàn)衛(wèi)星質(zhì)量特性在線辨識算法的地面物理仿真驗證,因此本文對衛(wèi)星和氣浮臺的質(zhì)量特性及干擾力矩在線辨識問題進(jìn)行深入研究。