1) Lagrange's equilibrium point
Lagrange平动点
2) Lagrangian particle tracking
Lagrange质点追踪
1.
Lagrangian particle tracking and matter transportation and diffusion were applied in water exchange study.
对大亚湾的潮流场进行三维数值模拟,分别用Lagrange质点追踪法和保守物质输运扩散2种方法研究大亚湾的水交换能力,并把大亚湾分成7个子区域,计算整个海湾和各子区域的水体平均存留时间和更新时间,比较各子区域的水交换能力的大小,分析2种方法结果差异产生的原因。
3) Libration point
平动点
1.
Halo orbit locates about the libration point in the Sun-Earth system and has no orbital plane focusing the Earth,which makes the attitude description and dynamics modeling for Halo-orbit spacecraft is quite different from that for the usual satellite around the Earth.
日地系Halo轨道位于平动点附近,且不存在以地球为中心的轨道平面,这使得Halo轨道探测器的姿态描述和建模问题完全不同于近地卫星。
2.
The photogravitational restricted three-body problem in which the mass reduc-tion factors of two primaries q_1,q_2∈(-∞,1]are studied and an analytic method to estimate the number of libration points and to calculate their location is given in this paper.
文中给出一种平动点的个数估计和位置计算的分析方法。
3.
Libration point orbits have the important applications in deep space exploration,and have been paid more attentions from all over the world.
平动点轨道在深空探测领域具有重要的应用价值,引起了国内外航天界的密切关注。
4) Libration point
动平衡点
5) Libration points
平动点
1.
The paper suggests a linear stability field of triangular libration points in the circular restricted three-body problem when a main body is a source of radiation, and discusses the effect on the linear stability of triangular libration points in the classic circular restricted three-body problem under radiation pressure and the existence and stability of collinear libration points.
给出了考虑一个主体有强辐射的圆型限制性三体问题三角平动点的线性稳定域,讨论了辐射压对经典圆型限制性三体问题三角平动点的线性稳定性的影响,并讨论了直线平动点的存在性和稳定性。
6) Lagrange Stable Sport
Lagrange稳定运动
补充资料:闭式单点、双点压力机
| |||||||
主要参数内容 | 国际先进 | 国内先进 | 国内一般 | 国内落后 | 评定方法及说明 | ||
(一)加工精度 | 参照GB10924-89、GB10933-89、JB5200-91 | ||||||
1、滑块下平面对工作台上平面的平行度(mm) | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.02+0.10/100×滑块下平面的被测长度 | |||||||
2、滑块行程对工作台上平面的垂直度 | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.05+0.02/100×滑块行程长度 | |||||||
(二)结构性能 | |||||||
1、离合器、制动器接通率,当滑块行程次数≤16次/分时为70%,≤25次/分时为60%,≤45次/分时为50% | 大于规定值10% | 大于规定值 | 达到规定值 | 达不到规定值 | |||
2、液压超负荷保险装置、微调装置、吨位指示器 | 全部具有 | 全部具有 | 部分具有 | 没有 | |||
(三)噪声dB(A) | |||||||
1、公称力≤400kN | ≤85 | ≤87 | ≤88 | >88 | |||
2、公称力>400kN | ≤87 | ≤88 | ≤90 | >90 |
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