针对空间光学遥感器反射镜结构刚度高、热尺寸稳定性差的状况,设计了一种柔性锥套结构,它在保持结构刚度满足力学要求的同时,使反射镜具有良好的热尺寸稳定性。
In order to make reflectors of the space remote sensor keep both high rigidity of structure and fine stability of thermal dimension, a kind of flexible cone-shaped sheath is designed.
发射过程中的力学环境和在轨运行时的热环境,影响航天光学遥感器的尺寸稳定性,进而影响成像质量。
Dynamic environment in launching and thermal environment on orbit affect dimension stability of space optical remote sensor, thus declining its imaging quality.
动力学不稳定性模型被推广到有限几何形状的加热面,以解释微电子器件尺寸对池内沸腾换热临界热流形成机理的影响。
The hydrodynamic instability model is spread for finite geometries in order to explain effects of size of microelectronic devices on the mechanism of formation of pool boiling critical heat fluxes.
研究结果表明:高温热压后的板材吸湿性降低,尺寸稳定性好,但热压温度过高会产生木材热分解,冲击强度略有降低。
The results showed moisture adsorption of the platen dried veneer was lower and its dimensional stability was better, but its impact strength dropped when pressing temperature was too high.
研究结果表明:高温热压后的板材吸湿性降低,尺寸稳定性好,但热压温度过高会产生木材热分解,冲击强度略有降低。
The results showed moisture adsorption of the platen dried veneer was lower and its dimensional stability was better, but its impact strength dropped when pressing temperature was too high.
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