Introduction To Constrained Dynamics: Resources & Sources

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Discussion Overview

The discussion revolves around the topic of constrained dynamics, with participants seeking resources such as articles, papers, and books. The scope includes theoretical understanding, educational resources, and potential applications in various contexts, including self-study and academic courses.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests resources for a brief introduction to constrained dynamics.
  • Another participant seeks clarification on the meaning of "constrained dynamics," specifically regarding forces of constraint.
  • Several participants emphasize the vast amount of literature available on the topic and suggest that the requester clarify their specific needs to narrow down the search.
  • Suggestions for resources include the Springer series and a shorter online document, with a focus on the appropriateness of resources based on the requester’s educational level and purpose.
  • There is mention of classical mechanics textbooks that cover constraints, particularly for undergraduate physics students.
  • Some participants express uncertainty about the distinctions between different types of constraints, such as the first and second kinds, and seek further clarification on these concepts.
  • Links to original sources are provided, including one that is open access and another that is behind a paywall.

Areas of Agreement / Disagreement

Participants generally agree that the topic of constrained dynamics is broad and that specific requirements are necessary to provide useful resources. However, there remains uncertainty regarding the definitions and distinctions of constraints, indicating a lack of consensus on that aspect.

Contextual Notes

Limitations include the need for clearer definitions of "constrained dynamics" and the varying levels of understanding among participants regarding constraints. The discussion also reflects differing educational backgrounds and purposes for seeking information.

Who May Find This Useful

Readers interested in constrained dynamics, particularly students and educators in physics and engineering, may find this discussion relevant for identifying resources and understanding foundational concepts.

Narasoma
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I need a brief introduction to constrained dynamics. Any article, paper or books will help. If you know sources related to that matter, please tell me...
 
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When you say "constrained dynamics," what do you mean? Dynamics with one or more forces of constraint acting?
 
You realize that there is a great deal on this topic - could you add some <ahem> constraints to your requirements so we can narrow it down?
I mean, they are all "sources related to the matter" ... there's literally millions of publications that fall under, "any article, paper, or books".

What do you need this for? What we give you will be different if you need it for a job or for self-study... or something else.
It will also be different depending on your current education level, and if you need a computer-oriented introduction or a more analytical/theoretical introduction.

At college level ... The Springer series is usually good ... https://link.springer.com/book/10.1007/BFb0036225 ... but I would usually suggest soething shorter and cheaper like https://www.cs.cmu.edu/~baraff/pbm/constraints.pdf and online lecture series for the first look, then you narrow down your search from there.
 
Dr.D said:
When you say "constrained dynamics," what do you mean? Dynamics with one or more forces of constraint acting?

I understand "basic" Lagrangian and Hamiltonian mechanics, but I don't get the understanding about constraint. Constraint of the first kind, constraint of the second kind... What is that?
 
Simon Bridge said:
You realize that there is a great deal on this topic - could you add some <ahem> constraints to your requirements so we can narrow it down?
I mean, they are all "sources related to the matter" ... there's literally millions of publications that fall under, "any article, paper, or books".

What do you need this for? What we give you will be different if you need it for a job or for self-study... or something else.
It will also be different depending on your current education level, and if you need a computer-oriented introduction or a more analytical/theoretical introduction.

At college level ... The Springer series is usually good ... https://link.springer.com/book/10.1007/BFb0036225 ... but I would usually suggest soething shorter and cheaper like https://www.cs.cmu.edu/~baraff/pbm/constraints.pdf and online lecture series for the first look, then you narrow down your search from there.

Maybe some books of classical mechanics with constraints for undergraduate theoretical physics student will help. Thanks.
 
Narasoma said:
Maybe some books of classical mechanics with constraints for undergraduate theoretical physics student will help. Thanks.
Did you have a look at the suggestions?

Senior undergrad would include Lagrangian mechanics and the principle of least action - that what you are looking for?
Next level down would basically be differential equations with boundary/initial values.
Basically all the physics you do in secondary school is classical mechanics with constraints... it's just not formally delivered that way.
If you want to know this stuff for a course you are taking at college level, then you should use the textbook for the course.

To give you an idea of what is involved - see Susskind's lectures on classical mechanics.

... see what you think.
 
Narasoma said:
I understand "basic" Lagrangian and Hamiltonian mechanics, but I don't get the understanding about constraint. Constraint of the first kind, constraint of the second kind... What is that?
The original sources are (open access)

https://cms.math.ca/10.4153/CJM-1950-012-1

and (unfortunately behind a paywall)

https://www.jstor.org/stable/100496?seq=1#page_scan_tab_contents
 
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