It's all in how one interprets it. Forty years ago I developed my own matrix-based spatial algebra notational convention, similar to Featherstone's, and used it to develop a general purpose, 3D rigid multibody dynamics modeling and simulation program for a fortune 500 company. Let there be one inertial frame 0, and believe me, the numerical processing is much simpler and more efficient when all vector coordinates are expressed in the same frame 0 and all bound vectors are moved to the same frame 0 origin. Imagine a spiky ball of hundreds of bound vectors all intersecting at a common point with all those free vectors floating around that you can't seem to lay a finger on. It's sort of like protons and neutrons sitting in the middle of an atom with a cloud of evasive electrons that don't seem to be anywhere at the same time.
We usually try to simplify math for everyone to follow. These lessons also have written versions that math equations are explained in more detail: www.mecharithm.com/screws-a-geometric-description-of-twists-in-robotics/ To understand some of them, you may also need to go back and study some prior lessons as well. But generally, applied linear algebra (especially matrices and matrix operations) is your friend in Robotics.
@@mecharithm-robotics thank you for the response. I have to refresh myself on matrix operations and i have never studied linear algebra; BUT it will be on my agenda so I can follow along with your content (soon)with a clearer understanding. Lastly, I think you are one of the COOLest women, as far as tech, I have ever viewed on RUclips. I will send my daughter to your channel if she ever becomes as interested in tech as I am. 👍
You mentioned upcoming videos about robot kinematics. Are you still planning on doing videos on this? Also, will you be doing any videos on robot dynamics?
The robot kinematics lesson was uploaded a couple of months ago. Dr. Madi's teaching modern Robotics I course for the fall semester at St. Louis University and she is planning to reformulate the lessons including some practical exercises with a robotic arm controlled by ROS. They will be uploaded soon. And yes it will include dynamics and control as well.
let me give you some examples: a robotics company's making ros-based robotic arms. they are developing a framework to control this robot arm. if you do not know the behind mathematics, you cannot program the kinematics, and dynamics of the robot to develop that framework. A robotic researcher cannot design and control a new robot without knowing how to model that robot in the first place. Screw theory gives this reasearcher a powerful tool.
It's all in how one interprets it. Forty years ago I developed my own matrix-based spatial algebra notational convention, similar to Featherstone's, and used it to develop a general purpose, 3D rigid multibody dynamics modeling and simulation program for a fortune 500 company. Let there be one inertial frame 0, and believe me, the numerical processing is much simpler and more efficient when all vector coordinates are expressed in the same frame 0 and all bound vectors are moved to the same frame 0 origin. Imagine a spiky ball of hundreds of bound vectors all intersecting at a common point with all those free vectors floating around that you can't seem to lay a finger on. It's sort of like protons and neutrons sitting in the middle of an atom with a cloud of evasive electrons that don't seem to be anywhere at the same time.
The norm of the linear velocity component of the Twist vector is 4, not 1.4142 at 19:57. Could you please guide?
Thanks, great explanations!
you are very welcome.
I'm not a very educated man so the math is a little foreign to me. Which math subject should I study to follow along with your content?
We usually try to simplify math for everyone to follow. These lessons also have written versions that math equations are explained in more detail:
www.mecharithm.com/screws-a-geometric-description-of-twists-in-robotics/
To understand some of them, you may also need to go back and study some prior lessons as well.
But generally, applied linear algebra (especially matrices and matrix operations) is your friend in Robotics.
@@mecharithm-robotics thank you for the response. I have to refresh myself on matrix operations and i have never studied linear algebra; BUT it will be on my agenda so I can follow along with your content (soon)with a clearer understanding. Lastly, I think you are one of the COOLest women, as far as tech, I have ever viewed on RUclips. I will send my daughter to your channel if she ever becomes as interested in tech as I am. 👍
Great
You mentioned upcoming videos about robot kinematics. Are you still planning on doing videos on this? Also, will you be doing any videos on robot dynamics?
The robot kinematics lesson was uploaded a couple of months ago. Dr. Madi's teaching modern Robotics I course for the fall semester at St. Louis University and she is planning to reformulate the lessons including some practical exercises with a robotic arm controlled by ROS. They will be uploaded soon. And yes it will include dynamics and control as well.
Amazing video 😍
و. ؤ٦٢ءة.
thanks for another amazing video! And not sure who added that moan sound overlay :x took me out of focus to type this lol
Thanks for your feedback. What sound overlay are you talking about (at what time)?
@@mecharithm-robotics 10:58 :x
Excellent! Keep up the great work!
amazing! your configuration space video helped me a lot.
Thanks, Rahul for your feedback. Glad to hear that it helped you.
@@mecharithm-robotics
welcome
Frankly, I like you, I want to get to know you, be friends,
(Honestly, your chest is very beautiful and attractive)
P
@Anuj Kumar ì
I will never understand how people can study using math instead hands on kind of lessons.
let me give you some examples: a robotics company's making ros-based robotic arms. they are developing a framework to control this robot arm. if you do not know the behind mathematics, you cannot program the kinematics, and dynamics of the robot to develop that framework. A robotic researcher cannot design and control a new robot without knowing how to model that robot in the first place. Screw theory gives this reasearcher a powerful tool.
Beautiful woman explaining a beautiful theory.
simp