Stack Overflow
Stack Overflow

Questions tagged [kinematics]

Kinematics is the branch of mechanics dealing with the motion of points and objects.

Kinematics is the study of mechanics deal with motion of points and objects without regard to the cause of the motion, such as the movement of jointed robotic arm or the movement of pistons and tappets of an engine.

Forward kinematic equations describe the final position of a robotic arm or other system based on the joint parameters.

Inverse kinematic equations describe the joint parameters necessary to move a robotic arm to a particular position. This is also called motion planning.

117 questions
0
votes
0 answers

Unity - First Person Controller - unwanted behaviour with "non kinematic"

I have a problem with my First Person Controller. I need a Rigidbody with "Is Kinematic == false" due to a wanted collision-trigger with a enemy. But if I set my Rigidbody to non Kinematic - the FPS Controller freaks out and switches Positions while…
1zz0
  • 264
  • 3
  • 18
0
votes
0 answers

Kinetic translation in Y-axis using FlingAnimation

I'm trying to add 'kinetic' move in Y-axis from top of the screen to bottom (and vice versa) to custom layout displayed above all apps using the window manager. I tried to do it in this way: private void animateFlingInYAxis(View view) { …
redrom
  • 11,502
  • 31
  • 157
  • 264
0
votes
0 answers

How to get points/path around the curves of a track

I have a path that consists of points as shown in the figure below. Consider that as the center line of the track (curved track same as water slide in Unity3D). Now I want to generate the second set of points that takes the drag along the…
Chandra Kishore
  • 1
  • 1
0
votes
1 answer

calculating forward kinematics using D-H matrix

I have a 6-DOF robot arm model: robot arm structure I want to calculate forward kinematics, so I uses the D-H matrix. the D-H parameters are: static const std::vector theta = { 0,0,90.0f,0,-90.0f,0}; // d static const std::vector d =…
CXC_SCUT
  • 1
  • 2
0
votes
1 answer

Getting a point in the local frame of a simulated robot

This is for a robot simulation that I'm currently working on. If you look at the diagram provided, you'll see two co-ordinate frames. Frame A, Frame B; and you will find a point p. Co-ordinate frame A is the world-frame, and frame B is the local…
arkate
  • 501
  • 8
  • 23
0
votes
0 answers

Angular acceleration affect on accelerometer

In the sensor documentation of android it is given that accelerometer measures linear acceleration + gravity So in my problem I formuled accelerometer readings as Accelerometer = Linear Acceleration + Gravity + Noise But I wonder should I consider…
fakturk
  • 415
  • 7
  • 16
0
votes
1 answer

motion tracking by accelerometer inertial sensor

I'm trying to make the hand tracking by an acceloremeter. I don't know if it is a good idea, or is better the optical tracking system. In particular there is an accelerometer mounted on the back of the hand and I want to get the position of the hand…
Luigi Biasi
  • 59
  • 7
0
votes
1 answer

Python library for working with 3D kinematics

I am new at the field of kinematics and I am looking for some Python library that will make my start with 3D kinematics easier. The only library that I found so far is thLib, but nothing else. I am not sure if I am using wrong keywords or is python…
hory
  • 305
  • 1
  • 4
  • 12
0
votes
1 answer

COM Port Timeout and Lag in Visual Basic Program

I have been working on a telecontrol application involving a robotic arm. I have created a VB.net program which takes the coordinates received from a webpage (via mySQL) and converts the coordinates into motor steps, which it then outputs to the…
Gopika
  • 35
  • 1
  • 6
0
votes
1 answer

Translating Cartesian Coordinates from Hand frame to World Frame: ROS & Baxter (python)

So I'm working with the baxter robot and using the ROS workspace. The baxter has a camera attached to its arm, from which I can read x,y,z coordinates of certain object, relative to the hand frame. Once my object is detected, I need its x,y,z…
lambda
  • 85
  • 1
  • 13
0
votes
1 answer

Converting Kinematics Equations to Matlab

Perhaps this isn't a programming question but a math question. But here goes. Imagine that you are making a roller coaster powered by a motor on the vehicle. The vehicles have a fixed force value that they can achieve using this motor. In a section…
toshiomagic
  • 1,335
  • 1
  • 12
  • 39
0
votes
1 answer

Differential drive robots: converting wheel speeds to lin/ang velocities

I am modeling a simple differential drive robot (such as the e-Puck, Khepera, etc.) with pyBox2D. This class of robots is usually controlled by indicating speeds for the right and left wheel in rad/sec. However, Box2D can only control a (kinematic)…
stefano
  • 769
  • 2
  • 10
  • 24
0
votes
1 answer

Representing robot's elbow angle in 3-D

I am given coordinates of two points in 3-D viz. shoulder point and object point(to which I am supposed to reach). I am also given the length from my shoulder-to-elbow arm and the length of my forearm. I am trying to solve for the unknown…
Onkar Deshpande
  • 301
  • 4
  • 15
0
votes
2 answers

Null parameter check C++

I have a function that solves one of 4 kinematic equations. The parameters are floats, and Is there a way to distinguish between a NULL parameter and a parameter with a value of 0. I've read up on the subject and it seems that NULL and 0 are the…
Orange Mushroom
  • 431
  • 4
  • 16
0
votes
1 answer

Mecanim + Animation with displacement issues

I have my game 3D wolf models from animator with displacement i.e wolf transform with animation(not in-place).I have added rigid body on models. I am facing following issues while executing them in my project When i turn on (Checkmark) IsKinematic…
GameFreak
  • 63
  • 8
1 2 3 4 5 6
7
8