1) luffing structure
俯仰结构
2) pitching mechanism
俯仰机构
1.
When working,the antenna was raised to 61 degree from horizon plane,therefore a stable pitching mechanism is needed.
在工作状态时使车顶平置天线仰起61°,因此提出了对天线俯仰机构的设计。
3) pitch
[英][pɪtʃ] [美][pɪtʃ]
俯仰
1.
The coupling dynamics of the pitching of spacecraft, the sloshing of liquid fuel and the vibration of elastic appendages are investigated.
该文考虑了带弹性帆板与液体燃料的航天器做俯仰运动时刚-液-弹之间的相互耦合作用,采用已推导的刚-液-弹耦合系统非线性动力学方程组,应用多尺度法解析分析耦合系统的液体一阶主共振,利用奇异性理论对分岔方程进行分析,得到多种分岔模式,随后根据该文研究的耦合系统物理系数范围,确定只存在滞后点分岔,表现为幅频曲线软、硬特性的转换现象。
2.
The coupled dynamics of the pitching of a spacecraft,the sloshing of liquid fuel and the vibration of elastic appendages is investigated.
考虑了带弹性帆板与液体燃料的航天器做俯仰运动时刚-液-弹之间的相互耦合作用,采用已推导的刚-液-弹耦合系统非线性动力学方程组,应用多尺度法对耦合系统液体一阶主共振的非线性动力学特性进行解析分析,发现了幅频曲线软、硬特性随液深发生转换的现象,发生转换时的临界液深值大小与液体燃料在航天器中的位置、航天器与弹性帆板的转动惯量相对于液体燃料密度的比值均有关,并通过与数值模拟比较,验证了解析分析的正确性。
3.
The effects of fuel position on the attitude of spacecraft with elastic appendages were studied under the condition that the fuel sloshes violently and assuming that the coupling system pitches round the mass center of the whole system.
假设耦合系统绕系统质心做俯仰运动,首先采用已推导的刚-液-弹耦合系统俯仰运动非线性动力学方程组,得到系统固有频率,给出固有频率简单近似解析表达式,分析充液箱位置对系统各阶固有频率的影响。
4) pitching
[英]['pitʃiŋ] [美]['pɪtʃɪŋ]
俯仰
1.
Investigation of dynamic test technology for a model pitching oscillation with large amplitude in high speed wind tunnels;
高速风洞大振幅俯仰动态试验技术研究
2.
A pitching test set-up, used in the unsteady wind tunnel at Nanjing University of Aeronautics & Astronautics, is developed to study the effect of rapid changes on both the free stream velocity and the angle of attack.
在南京航空航天大学已建成的国内首座非定常风洞内,研制了一套单自由度俯仰振荡实验装置,设计开发了一套对模型姿态和来流风速进行联合控制的软件。
3.
We have an empirical knowledge that the rear suspension should have a higher spring rate than front one, in order to reduce pitching motion.
为了减少俯仰运动,后悬架应该比前悬架有较高的弹簧刚度。
5) trim
[英][trɪm] [美][trɪm]
俯仰,俯仰差
6) belief structure
信仰结构
1.
Within the development of 1000 years, the remains gradually permeate into every part of Tibetan social life and become a very important component of Tibetan belief structure.
在 10 0 0多年的发展中 ,它逐渐渗透到人们的心理结构、文化观念、生活方式和道德规范中 ,积淀为一种十分深厚的文化心理 ,成为藏族信仰结构中的一个重要方面 ,直接影响着他们的生活和生产。
2.
The research on the social transformation of such a religious nationality can profoundly reflect the causes of its belief structure resulting.
对这样一个宗教民族的社会转型研究能够深刻反映当代锡克人问题复杂性的信仰结构动因,在一定程度上为宗教少数民族自治提供历史启示。
补充资料：俯仰
〈书〉①低头和抬头：～之间。②指一举一动：～由人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条