That is, the image in the first quadrant moves in the positive direction, and the image in the fourth quadrant moves in the negative direction.
The time image determines whether the object is moving in a reverse uniform deceleration or in a reverse uniform acceleration. If the velocity graph line is parallel to the time axis. It is uniform, upward, acceleration and deceleration. Through the coordinate element point. It's the other way around.
How does the acceleration image distinguish forward and backward motion according to the slope? In the velocity image, the direction of object motion is judged by positive and negative velocities, and the slope indicates the magnitude and direction of acceleration.
In the acceleration image, the slope has nothing to do with the direction of the object movement, and the slope indicates the speed of acceleration change. The specific motion direction needs to be comprehensively judged according to the initial velocity and acceleration.
What do you mean by forward motion and reverse motion of the robot? Forward kinematics refers to the use of robot motion equations to calculate the position of the end effector according to the values specified by joint parameters.
Kinematics equations of robots are used in robots, computer games and animation. In the opposite process, calculating the joint parameters of the specified position of the end effector is called inverse kinematics.
There is no essential difference between motion in the same direction and motion in the opposite direction, but the sign of speed is different.
What is the same motion in physics? Towards each other? Reverse motion? Back movement? The same direction means moving in one direction, and the opposite direction at different times means that both sides move in two opposite directions, right?
Is bc segment slowing down or moving in the opposite direction? This is a VT diagram showing the relationship between speed and time. Although the diagonal here is downward, the speed of each point is positive, so it is slowing down.
But if it is XT, it is the opposite movement.
If the object moves in the opposite direction along the X axis, is the displacement △X positive or negative? △X is negative, the object moves in the opposite direction along the x axis, and the speed of the object is negative. dx/dt & lt； 0，dt & gt0，dx & lt0
Seek adoption
The initial velocity is defined as the positive direction. When the object moves in the opposite direction (uniformly accelerated linear motion), the acceleration direction of the object is positive or negative. After reversing, both speed and acceleration are negative.
Regarding the forward kinematics and inverse kinematics of 3DMAX, I hope your predecessors can help me solve it. I like playing table tennis.