gravity modeling 中文意思是什麼
gravity modeling
解釋
重力模擬-
Because it is impossible to adjust the air bearing absolutely balance, the difference between mass center and rotation center must lead to a notable gravity disturbance torque. in the process of identification, modeling and identification of gravity disturbance torque is considered, and an extended kalman filter is educed for identifying air bearing inertia matrix and gravity disturbance torque, and then the algorithm is validated
由於氣浮臺平衡調試方法和手段的限制，實驗過程中氣浮臺質心與轉動中心有一定的位置偏差，必將導致較大的重力干擾力矩，在辨識演算法的推導過程中，重點考慮了重力干擾力矩的建模和參數辨識問題，推導了氣浮臺的轉動慣量和重力干擾力矩辨識的擴展卡爾曼濾波演算法，並對演算法進行了數學模擬和全物理模擬驗證。 -
Through changing the gravity center of face contour dynamically and combining with the traditional asm, the improved method overcomes the problem of modeling asm under fewer landmarks
通過充分利用面部輪廓標定點的信息，提出了一種將而部輪廓質心動態變化和傳統主動形狀模型相結合的策略，解決了在少量標定點條件下主動形狀建模所遇到的問題。 -
The main work done in the paper is as follows : 1. satellite attitude dynamics modeling study : for the earth - oriented three - axis stabilized satellite, a precise attitude dynamics model is established, considering the influence of the environmental disturbance, such as the gravity, the sun radiation, the earth magnetic field and the atmospheric resistance
本文的主要研究工作如下： （ 1 ）衛星姿態動力學建模研究：針對對地定向三軸穩定衛星，考慮了重力梯度、太陽輻射、大氣阻力、地球磁場等環境因素對衛星的影響，建立了較精確的衛星姿態動力學模型，同時又建立了四元素描述的姿態運動學方程。 -
5 ) to solve the uncertain modeling problem about hydraulic buildings, a new modeling method named aggregation modeling based on graph object technique is put forward. as a result, the graph model of solid gravity dam is designed. the graph object of water _ proof dam section taken as an example, the design and implement of self defined graph object is discussed
5 ）根據水工建築物不定型建模的特點，提出一種基於圖形對象技術的聚合建模方法，詳細討論了聚合建模法的基本原理；設計了實體重力壩的圖形對象模型，並以擋水壩段圖形對象的設計為例，研究了自定義圖形對象的設計和實現；基於objectarx的通知? ?反應機制，採用數據庫反應器和對象反應器，建立了圖形對象的互動操作機制；以擋水壩段斷面優化設計為例，研究了圖形對象和分析、計算功能的集成方案。 -
The objective of this thesis is to study the problems about ground modeling experiments on the convection heat transfer in the hermetic cabins of two man - made satellites under microgravity, and build up a set of experimental system for the ground modeling - cool experiment - based on the theoretical analysis of the effects of gravity on the flow and heat transfer in the hermetic cabins
航空航天技術領域中，如何在地面重力環境中實驗模擬空間微重力條件下的流動與傳熱，具有重要意義，但至今尚未得到很好的解決。本文的目的就是研究微重力環境下衛星密封艙內對流換熱的地面模擬實驗問題。 -
The emphases were placed on the object oriented structure of center of gravity estimation and methods adopted in this pan, especially the methods of estimating center of gravities of fuel and landing gear based on the design and modeling of relevant components
著重論述了重心估算部分的面向對象結構和採用的方法，尤其是根據相關部件的設計與造型特點估算燃油及起落架重心的方法。 -
Considering the gravity and tectonic stress as the main factors of in - situ stress of rock mass, a multivariate regression method, based on 3 - d fem direct modeling, is summarized
摘要介紹了基於三維有限元正演分析和將巖體自重及構造應力作為地應力的主要組成因素的地應力多元回歸反演方法。
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