Solver error translator for FEA engineers

The moment an OptiStruct, Mechanical, or Fluent job fails and spits out a .out or .log file full of solver jargon, engineers are stuck. They copy error text into a browser, dig through decade-old forum threads, and often still can't tell whether the problem is mesh quality, boundary condition setup, material definition, or a contact pair gone wrong. That's the moment they need this.

The gap persists because the solver vendors — Altair, Ansys, MSC — have no real incentive to make error diagnosis easy. A confused engineer is still a licensed engineer; they call support, they renew, they buy more. Making errors self-explanatory would reduce support tickets but also reduce the perceived value of having a support contract. The user (the simulation engineer) suffers, but the buyer (the engineering manager or IT procurement) never sees the hours burned on this — so it never becomes a contract negotiation point.

What users actually describe: errors that don't have codes at all, differences in results between preprocessing and solver steps that aren't flagged, and mesh quality issues that only surface mid-solve. No existing community tool maps solver log patterns to root causes across OptiStruct, Mechanical, SimSolid, and Fluent simultaneously — each solver has its own error taxonomy, and they aren't compatible.

This is a business because solver errors don't go away when you get better at FEA — they just shift to harder models. Every new project, every new material, every new contact definition is another opportunity for a silent failure. Engineers hit this weekly, not once. A team of five FEA engineers burning two hours each per week diagnosing failures is ten hours of senior engineering time, which at fully-loaded rates is real money against a modest annual subscription.

What to build

Build a desktop or web app that ingests .out, .log, and .f06 files from OptiStruct, Ansys Mechanical, and Fluent, parses solver-specific error and warning patterns, and returns a plain-English diagnosis ranked by likely root cause — mesh issue, constraint conflict, material gap, convergence criterion — with a direct pointer to the model region or load case most likely responsible.

Where to start

Start with OptiStruct .f06 file parsing only — it's the most structurally consistent log format across Altair's product line, and Altair's user community is vocal and accessible through AltairConnect forums, giving you a concentrated early-adopter pool who already describe exactly this pain publicly.

The hard part

Building a reliable error pattern library requires ingesting thousands of real solver logs across solver versions — you either need a data-sharing arrangement with early customers who are willing to upload sensitive model logs, or you start with one solver and one version, which limits how broadly useful day-one coverage is.

How it makes money

Annual per-seat subscription, priced per analyst, with a free tier that handles the ten most common OptiStruct error codes to drive organic adoption inside engineering teams.