Description: 本文首先建立了航天器姿态动力学及运动学方程，该方程具有较强的非线性特性。通过将状态耦合部分作系统干扰项的处理，使原来的非线性模型转化为线性模型加非线性干扰的形式，从而得到了更加简单明了的姿态控制系统的表达式。
在应用滑模变结构原理对系统进行控制器设计时，首先通过二次型最优法求出了最优滑动面，在此基础上，利用自适应滑模控制原理，设计出了合适的系统控制律。
最后，运用所设计的姿态控制系统对某航天器进行数值仿真，并对仿真结果进行了分析。仿真结果很好地体现出所设计的变结构控制器的优点，并成功地对该航天器姿态进行了控制。
-paper first established the spacecraft attitude dynamics and kinematics equation, the equation has strong nonlinear characteristics. By coupling part of the state system for the disturbance, so the original nonlinear model into a linear model nonlinear increases in the form of interference, and thus a more straightforward attitude control system expression. The application SMVSC tenets of the system controller design, the first through the quadratic optimal method, the optimal sliding surface, on this basis, using adaptive sliding control theory and design a suitable system control law. Finally, using the design of the attitude control system for a spacecraft numerical simulation, and simulation results are analyzed. Simulation results reflect good design of variable structure controller, Platform: |
Size: 310978 |
Author:跃进 |
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Description: 在机动目标跟踪中，机动目标模型是机动目标跟踪的基本要素之一，一般希望机动目标模型能准确表征目标机动时的各种运动状态。比较常用的模型有匀速运动(CV)模型、匀加速运动(CA) 模型、时间相关模型（Singer）和机动目标“当前”统计模型。上述模型均采用机动频率表征目标的机动情况。在应用当中，通常采用固定的机动频率，这就表示机动目标的机动时间是一定的，而实际上机动目标的机动时间是不断变化的，也就是说机动频率是不断变化的，采用固定机动频率必然会带来误差。采样周期在0.5—2S时，机动频率越小跟踪精度越高[1]，但机动频率仍然是固定值。本文提出的基于神经网络的机动频率自适应调整方法可以使机动频率随机动而变化，从而提高状态估计的准确性，提高跟踪精度。本文将小波神经网络用于机动目标跟踪中机动频率的自适应调整，该算法对机动目标“当前”统计模型中的机动频率进行实时修改, 从而自适应的改变机动频率,使跟踪算法与目标的真实状态更接近。该算法采用小波神经网络的离线训练，实时性好。-The maneuver of the maneuvering target is uncertain. The maneuvering frequency is constantly changeable, but traditionally it is beforehand determined as a constant based on the target state estimation in the state model of the maneuvering target. The maneuver of the maneuvering target makes the kinematics equation of the target model mismatch with the practical motion model and the tracking error will be increased. Based on the advantages of the self-learning, the rapid convergence rate and the nonlinear approximation ability of the wavelet neural network, it was put forward to be used in the field of target tracking in the paper. The new residual is used as the input of the wavelet neural network, the output of the network is used to adjust adaptively the maneuvering frequency of the CS model. The algorithm is more close to the real state of the target. The simulation results showed that tracking error can be reduced and the tracking accuracy can be improved. Platform: |
Size: 4096 |
Author:李隆基 |
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Description: ADAMS软件使用交互式图形环境和零件库、约束库、力库，创建完全参数化的机械系统几何模型，其求解器采用多刚体系统动力学理论中的拉格郎日方程方法，建立系统动力学方程，对虚拟机械系统进行静力学、运动学和动力学分析，输出位移、速度、加速度和反作用力曲线。-ADAMS software uses an interactive graphical environment, and part library, library binding, force libraries to create fully parametric geometric model of the mechanical system, the solver using multi body dynamics theory of Lagrange equation method to establish the system dynamic equation , the virtual machine system statics, kinematics and dynamic analysis, the output displacement, velocity, acceleration and reaction force. Platform: |
Size: 59392 |
Author:林敏 |
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Description: ADAMS软件使用交互式图形环境和零件库、约束库、力库，创建完全参数化的机械系统几何模型，其求解器采用多刚体系统动力学理论中的拉格郎日方程方法，建立系统动力学方程，对虚拟机械系统进行静力学、运动学和动力学分析，输出位移、速度、加速度和反作用力曲线。-ADAMS software uses an interactive graphical environment, and part library, library binding, force libraries to create fully parametric geometric model of the mechanical system, the solver using multi body dynamics theory of Lagrange equation method to establish the system dynamic equation , the virtual machine system statics, kinematics and dynamic analysis, the output displacement, velocity, acceleration and reaction force. Platform: |
Size: 84992 |
Author:林敏 |
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Description: 在仿人机器人研究中，需要进行运动学和动力学分析，本代码将动力学方程进行编写，有助于仿真。-In the study of humanoid robot, kinematics and dynamic analysis need, the dynamic equation will be writing code to help simulation. Platform: |
Size: 2048 |
Author:李正文 |
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Description: 曲柄滑块机构的机构组成，速度方程以及匀角速度运动学仿真框图-Of the institutions of the slider-crank mechanism, the rate equation and the constant angular velocity kinematics simulation diagram Platform: |
Size: 44032 |
Author:cui |
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Description: 用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来
表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控
制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解,
所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉
角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的
转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一
的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换
仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90°
之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文
提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法,
经过数字仿真证实,这个算法是完全正确的、而且很实用。-Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion
, You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control
The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood,
Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler
Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion
Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven
The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion
Only suitable for Euler angles- 90 ° to+ 90 ° betwe Platform: |
Size: 2048 |
Author:yang |
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Description: 针对三点法三维运动学弹道仿真问题，建立了两种仿真模型 第一种模型采用数值积分算法求解
三点法运动学方程组，求解过程较为复杂 第二种模型利用三维空间相关几何知识，将求解三点法三维运动学
弹道的图解法转化为求解一元二次方程的问题，使求解过程简单直观 最后，对两种模型进行了仿真，并将其
应用到地空导弹制导控制系统的仿真研究中，将理想弹道与控制弹道进行了对比 结果表明，两个模型均解决了一般情形下三点法三维运动学弹道求解的问题，为三点法三维制导律以及弹道特性研究提供了一种方法-Three-point method for three-dimensional kinematic trajectory simulation problem, create a simulation model of the first two models using numerical integration algorithm for three-point method kinematics equations, solving process is more complicated second model using three-dimensional geometry of space-related knowledge, The three-point method for solving three-dimensional kinematic trajectory graphical method for solving a quadratic equation into the problem solving process so simple and intuitive Finally, the two models for simulation, and its application to air missile guidance and control system simulation study, the ideal trajectory were compared with the control trajectory results show that the two models are to solve the general case point method for solving the problem of three-dimensional kinematic trajectory, three-dimensional guidance law for the three-point method, and provides a ballistic characteristics method Platform: |
Size: 245760 |
Author:叶新 |
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Description: 通过运动学方程，由双关节机器人（喷漆机器人）的线速度求解相应的关节转动速度，并求出其最大速度点。
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Solving the rotation speeds of corresponding joints of serial robot (spraying robot) based on kinematics equation，and finding out the points of maximum speed. Platform: |
Size: 1024 |
Author:陈斌 |
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Description: 串联操作臂的运动学方程和力/位置控制程序。-Matlab program of the kinematics equation and force/position control of series manipulator. Platform: |
Size: 1476608 |
Author:陈斌 |
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Description: 该实例是把卡尔曼滤波应用在自由落体运动目标跟踪问题上，根据已有的运动学方程，得到物体的状态方程。-The instance is the application of kalman filtering on the free fall target tracking problem, according to the existing kinematics equation, the equation of state of the object. Platform: |
Size: 1024 |
Author:李丹丹 |
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Description: 可以迅速准确地求解出机械臂逆运动学方程，矩阵运算，的matlab程序(It can quickly and accurately solve the inverse kinematics equation of manipulator and the matlab program of matrix operation) Platform: |
Size: 2048 |
Author:zc333
|
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Description: 对微机械臂受力分析得到运动学方程，求解后得出微机械臂的关节力矩和宏机械臂末端作用力的关系。在已知柔性臂末端的弹性变形和振动情况的基础上，用PD控制原理使微机械臂关节产生所需力矩(The kinematics equation of the mechanical arm was obtained. The relationship between the joint torque of the micromanipulator and the end force of the macro manipulator was obtained. On the basis of the elastic deformation and vibration of the end of the flexible arm, the PD control principle is used to make the torque required for the micro manipulator joint.) Platform: |
Size: 2048 |
Author:鑫鑫123 |
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Description: 以 K
R100-2PA 码垛机器人为研究对象，分析了机器人运动学基础问题。利用
D-H
法建立了码垛机器人连杆坐标系及数学模型，并对码垛机器人进行了正逆运动学分
析。根据齐次变换矩阵推导出机器人末端吸盘手爪运动参数方程，并利用数值法与
MATLAB 对机器人末端手爪的运动空间进行了仿真分析，这对作业现场布置，及对
其它可实现的任务空间提供了一定的理论基础(With K
R100-2PA palletizing robot is the research object, and the kinematics basic problem of robot is analyzed. utilize
D-H
The coordinate system and mathematical model of the palletizing robot were established, and the forward and inverse kinematics credits of the palletizing robot were carried out.
Analysis. Based on the homogeneous transformation matrix, the motion parameters equation of the robot's end sucker claw is derived.
MATLAB simulated and analyzed the movement space of the robot's end gripper, which is the layout of the job site.
Other available task spaces provide a theoretical basis.) Platform: |
Size: 6191104 |
Author:乌哈 |
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Search - kinematics equation