evo-r2r-linearization

SkillAI & models

Derives linearized state-space model (A, B matrices) for 6-section R2R system, computes steady-state operating points, discretizes, and computes LQR gain.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the evo-r2r-linearization skill

What this skill tells your AI

The instructions your AI receives, as published by openlair/openskill in tasks-evolved/r2r-mpc-control/environment/skills/evo-r2r-linearization/SKILL.md and read by ahel’s review.

Computes linearized state-space model for R2R web handling systems.

Usage

import sys
sys.path.insert(0, '/app/environment/skills/evo-r2r-linearization/scripts')
from utils import (
    compute_steady_state_velocities,
    compute_steady_state_torques,
    build_continuous_AB,
    discretize_system,
    compute_lqr_gain,
    get_full_reference_state
)

Key Functions

  • compute_steady_state_velocities(T_ref, EA, v0) - Cascade velocities using (EA-T) formula
  • compute_steady_state_torques(T_ref, v_ref, R, fb) - Compute equilibrium torques
  • build_continuous_AB(T_ss, v_ss, EA, L, R, J, fb, v0) - Build 12x12 A and 12x6 B Jacobians
  • discretize_system(A_cont, B_cont, dt) - ZOH discretization via scipy
  • compute_lqr_gain(Ad, Bd, Q, R_mat) - Solve DARE, return K_lqr and P
  • get_full_reference_state(T_ref, EA, v0, R, fb) - Get full x_ref and u_ref

Signals

GitHub stars
89
Forks
4
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
evo-r2r-linearization
Source
github.com/openlair/openskill