Dear Sai,

 

I am just an avid hobby user of sympy.phyisc.mechanics, I am a retired salesman.

So surely, I cannot guide you in any way!

 

My gut feeling is, that there is currently a lot of interest in realistic 
models in biomechanical forces / torques.

All other force models you mention, I personally do not find interesting.

 

Please take my comments exactly like they are meant to be: the opinion of a 
retired engineer – no more!

 

Peter

 

 

 

From: sympy@googlegroups.com <sympy@googlegroups.com> On Behalf Of sai udayagiri
Sent: Monday, March 3, 2025 6:51 AM
To: sympy <sympy@googlegroups.com>
Subject: [sympy] Introduction & Interest in Contributing to SymPy Mechanics 
(Forces & Torques)

 

Hello SymPy Community,

I’m Udayagiri Saibabu, and I am excited to contribute to 
sympy.physics.mechanics, specifically in force and torque modeling.

About Me:  
- Master's in Physics (Amrita University,India)  
- Bachelor's in Mathematics & Computer Science (GITAM University,India)  
- 3+ years of Python expertise (solved 1000+ LeetCode problems)  
- Strong background in Classical Mechanics (studied Kane’s & Lagrange’s 
methods)  
- Open-source enthusiast (experience in Git, GitHub)  

Why SymPy?  
I appreciate SymPy’s ability to model dynamic systems symbolically. The forces 
& torques project aligns perfectly with my background.  

How I Want to Contribute:  
I plan to help implement:  
- Contact forces & friction models  
- Aerodynamic forces  
- Nonlinear springs & dampers  
- Musculotendon models for biomechanics  
- Control-based forces (PID controllers, actuators)  

To ensure my contributions align with the project’s goals, I have a few 
questions:  

1. I have reviewed PRs like #24258, #24641, and #25518, which introduce Force 
and Torque classes. Are there specific challenges or improvements needed for 
extending these classes with new force models?  
2. The project idea lists multiple force models. Which ones would be the 
highest priority for initial contributions?  
3. Should new forces follow the approach used in CoulombKineticFriction and 
LinearSpring, or are there suggested improvements for defining force models 
more efficiently?  
4. The project mentions using SymPy’s code generation tools for numerical 
efficiency. Are there existing examples of force models optimized for codegen 
that I should refer to?  
5. I have set up SymPy locally and explored mechanics-related PRs. Would it be 
best to start with a small enhancement before implementing a new force model?  

Looking forward to your guidance on how I can contribute effectively. 
"Meanwhile, I am actively exploring the existing force models, testing 
different implementations, and analyzing how they integrate with SymPy's 
mechanics framework."  

Best,  
Udayagiri Saibabu  
Email: mail link <http://saibabu.udayag...@gmail.com> 
GitHub: https:github link <https://github.com/saiudayagiri> 
LinkedIn: linkedin link <https://www.linkedin.com/in/sai-udayagiri/> 

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