- #1

Trying2Learn

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- TL;DR Summary
- Is it practical?

Good Morning

May I first ensconce this question in a related issue?

-----------------Related Issue-----------------------

Consider a 1D harmonic oscillator (mass, stiffness damping). The analysis of this structure bring many issues to light, regarding vibrations (no damping, under-damping, critical, over-damping, number of solutions, complex analysis, modal analysis, etc.).

Real world mechanical devices, however, are much more complicated.

Still, we study the fundamental oscillator because it provides a foundation -- a language of terms, concepts -- that are fundamental to machine vibrations.

One might say that the "

With that as the foundation, I turn to the issue for myself: inverse kinematics.

---------------Question at hand-----------------------

In forward kinematics (for open links), the issue is: given the angles of each link, where is the distal tip?

In inverse kinematics, the issue is: if we want the tip to be at a certain point, what are the angles of each link from the other?

For a simple 2 bar link, we learn the complexity of this issue. However, once we rise above three links, or add in constraints or obstructions, the topic is extremely complicated. In fact, one might say that the "

In fact, it seems that in real-world applications, in 3D, with obstructions, one approaches the solution path more by trial and error than any analysis.

If you disagree, do not get angry: just explain. For that is what I hope to understand -- why I am wrong.

May I first ensconce this question in a related issue?

-----------------Related Issue-----------------------

Consider a 1D harmonic oscillator (mass, stiffness damping). The analysis of this structure bring many issues to light, regarding vibrations (no damping, under-damping, critical, over-damping, number of solutions, complex analysis, modal analysis, etc.).

Real world mechanical devices, however, are much more complicated.

Still, we study the fundamental oscillator because it provides a foundation -- a language of terms, concepts -- that are fundamental to machine vibrations.

One might say that the "

**" between the fundamental issue (and is simple issues) and the real-world applications, is relatively, short.***distance*With that as the foundation, I turn to the issue for myself: inverse kinematics.

---------------Question at hand-----------------------

In forward kinematics (for open links), the issue is: given the angles of each link, where is the distal tip?

In inverse kinematics, the issue is: if we want the tip to be at a certain point, what are the angles of each link from the other?

For a simple 2 bar link, we learn the complexity of this issue. However, once we rise above three links, or add in constraints or obstructions, the topic is extremely complicated. In fact, one might say that the "

**" between the issues raised in a simple 2-bar link, is very far from real-world applications; so far, in fact, that the study of 2-bar inverse kinematics is rendered relatively useless.***distance*In fact, it seems that in real-world applications, in 3D, with obstructions, one approaches the solution path more by trial and error than any analysis.

If you disagree, do not get angry: just explain. For that is what I hope to understand -- why I am wrong.