Standard specification for packaged , dry , combined materials for surface bonding mortar 路面砌合灰浆用成包的干混合材料的标准规范
Standard test method for surface bond strength of wood - base fiber and particle panel materials 木质纤维和碎料人造板表面粘结强度的标准试验方法
The product is two layers of limpness composite material of polyester thin film coated with bonding agent and single surface bonding of calendaring aromatic polyamide fiber paper 该产品是由聚酯薄膜涂以胶粘剂,单面粘合轧光聚芳酰胺纤维纸而成的二层柔软复合材料。
Based on the requirements of high precision pointing / targeting of advanced spacecraft , dynamic modeling of spacecraft with flexible appendages bonded with piezoelectric sensors / actuators , attitude control and active vibration suppression theory are studied deeply in this dissertation , which is funded by the research fund for the doctoral program of higher education of china item ? “ large flexible multi - bodies structure spacecraft active vibration control technology ” ( 20050213010 ) . the main contents of this dissertation are as the follows : an approximate analytical dynamic model of a flexible spacecraft with surface bonded piezoelectric sensors and actuators is derived using hamilton ’ s principle with discretization by the assumed mode method . the model is then converted to state - space form for the purpose of control design 本学位论文结合高等学校博士学科点专项科研基金“挠性多体结构卫星主动振动控制技术研究” ( 20050213010 )课题,从理论上对粘贴有压电智能元件的挠性航天器的建模、姿态控制和主动振动控制理论等展开了深入的研究,其研究内容主要包括以下几个方面:利用hamilton原理推导了挠性航天器的动力学模型、压电元件的作动方程及检测方程,并采用模态分析方法,进一步将挠性航天器的耦合方程规范化,使之适应于姿态控制系统的分析和设计。