搜索结果: 1-14 共查到“工学 kinematics”相关记录14条 . 查询时间(0.052 秒)
UTILIZING REMOTE SENSING DATA AND REAL TIME KINEMATICS GPS SURVEYING FOR AM/FM SYSTEMS
Spatial Information Science GIS Surveying GPS/INS Management AM/FM IKONOS
2015/6/1
Geographic Information System is an important tool for collecting, storing, searching, analyzing and printing of geographical information. Riyadh Municipality is fully aware of the great importance of...
上海大学工程力学课件Chapter 5 Planer Kinematics of Rigid Bodies
上海大学 工程力学 课件 Chapter 5 Planer Kinematics of Rigid Bodies
2014/8/8
上海大学工程力学课件Chapter 5 Planer Kinematics of Rigid Bodies。
上海大学工程力学课件Chapter 4 Introductory Kinematics。
Occupant kinematics in low-speed frontal sled tests: Human volunteers, Hybrid III ATD, and PMHS
Biomechanics Trajectories Human surrogate Acceleration Collision Impact
2012/4/26
A total of 34 dynamic matched frontal sled tests were performed, 17 low (2.5 g, Δv = 4.8 kph) and 17 medium (5.0 g, Δv = 9.7 kph), with five male human volunteers of approximately 50th percentile heig...
Kinematics Analysis of Mechanisms Based on Virtual Assembly
assembly constraint constraint degree eliminating element method
2011/8/3
Currently, virtual assembly technology has attracted increasing attention due to considerations of solving assembly problems in virtual environment before actual assembly in manufactory.
Optimal Forward Kinematics Modeling of Stewart Manipulator Using Genetic Algorithms
Stewart Forward Kinematics Predicted Squared Error Genetic Algorithm
2010/1/15
In this paper, a new technique for modeling the forward kinematics of a Stewart manipulator is presented based on a predicted squared error cost function. Initially, the inverse kinematics model was i...
基于向量内积的机器人实时逆解算法（Real-time Inverse Kinematics Algorithm Based on Vector Dot Product）
机器人 逆运动学 向量内积 算法
2009/8/11
为提高6R机器人逆运动学求解算法的实时性，提出了一种基于向量内积变换的实时高效逆运动学求解算法。将复杂的矩阵方程转换为含有6个未知关节变量的10个纯代数逆运动学方程，并在方程的简化过程中引入符号运算预处理，避免了大量浮点运算带来累积误差。通过相关方程的优化线性组合，有效避免了5、6两关节变量求解时产生增根的情况，大幅提高了逆解算法的效率。试验结果表明，同等求解精度要求下该逆解算法相比于其他算法具有...
旋转式分插机构运动学多目标非劣解群自动寻求（Automatic Search of Pareto Solutions of Multi-objective for Rotary Transplanting Mechanism Kinematics）
旋转式分插机构 复优化 多目标
2009/8/11
针对水稻插秧机分插机构优化过程中的多目标、非线性、交互性、模糊性以及优化结果不唯一等问题，建立了运动学参数的计算模型，通过对插秧性能各要求的模糊化得出各要求的隶属度，同时提出了对干涉的判定方法。在以各隶属度最大化为目标，运用优化算法求得一组较优解的基础上对该组解进行了区间扩张，将区间搜索转换为多目标优化问题，再次运用优化算法并通过 Visual Basic 6.0软件编程实现了自动搜索非劣解群的目...
State of the Art on Flow Kinematics and Particle Orientations during Composite Processing
Fiber suspension Thin particle suspension Particle orientation evolution
2009/5/5
The mechanism of orientation of fibers or thin micro-particles in various flows involving the processing of composite materials has not been fully understood although it is much significant to obtai...
Modelling the Batten Lever Mechanism’s Kinematics with a Non-circular Toothed Gear
modelling kinematics lever mechanism elliptic toothed gear
2009/2/9
The modelling of the kinematic characteristics of a rocker of the batten lever mechanism by means of an elliptic toothed gear is presented. This gear, introduced between a motor and a crank of the lev...
The Geometry and Kinematics of a Toothed Gear of Variable Motion
non-circular gear geometry kinematics
2009/2/6
The paper presents a toothed gear, in which an abaxially mounted toothed wheel is the active link, while a non-circular pinion (guaranteeing continuous interaction at a constant distance between the a...
Computer Simulation of the Kinematics and Dynamic Load of Selected Elements in the Needle Mechanism of a Warp-Knitting Machine
cam mechanism computer simulation mathematical model of mechanism warp-knitting machine.
2009/2/6
This work presents a computer analysis of the kinematics (analysed by means of a mathematical
model) of the mechanism of a cam-lever drive for a needle rail in a K13 warp-knitting machine. Functions ...
On some relationships of spherical kinematics
rigid body spherical motion curvature axode fixed and moving cones
2010/3/12
In this paper, some relations are developed for the spherical motion of a rigid body. Results are formulated in four theorems which describe a few geometrical properties of spherical motion using the ...
On inverse kinematics and kinetics of redundant space manipulator simulation
inverse kinematics and kinetics redundant manipulators space robotics optimization with constraints
2010/3/12
Redundant manipulators are nowadays favoured in several future space mission scenarios in order to enhance the skill and flexibility of the entire system. DLR, since many years, has been engaged in th...