CAE Simulation for Automotive Engineering in India: A Cadence Toolchain…

Automotive engineering in India has matured beyond the point where individual simulation tools solve individual problems in isolation. A modern vehicle programme demands an integrated CAE (Computer-Aided Engineering) simulation chain that spans structural integrity, NVH refinement, vehicle dynamics, crash safety, manufacturing process simulation, and materials modelling, with data flowing between disciplines rather than each team working independently.

The Cadence simulation portfolio (formerly MSC Software) provides this integrated chain within a single vendor ecosystem. Each solver is purpose-built for its domain, but the interoperability between solvers is where the real value emerges for Indian automotive teams in Pune, Chennai, Bengaluru, and Delhi NCR.

The Automotive CAE Workflow

Structural Analysis: MSC Nastran

Every automotive CAE programme starts with structural analysis. MSC Nastran handles:

Static strength (SOL 101), stress and displacement under static loads (mounting loads, towing loads, jacking loads)
Modal analysis (SOL 103), identifying structural resonances that contribute to NVH problems
Frequency response (SOL 111), predicting vibration response to powertrain and road excitation
Crash simulation (SOL 700), explicit dynamics for frontal, side, rear, and pedestrian impact scenarios
Topology optimisation (SOL 200), generating weight-optimised structural concepts from loading and packaging constraints

For Indian OEMs targeting Bharat NCAP and Global NCAP ratings, crash simulation has become a mandatory design discipline. SOL 700 provides the explicit dynamics solver within the Nastran framework, avoiding the need for a separate crash solver.

Vehicle Dynamics: Adams

While Nastran examines stress within individual components, Adams models how the complete vehicle system behaves dynamically. Suspension kinematics and compliance, ride and handling balance, steering feel, and road load prediction for durability, these are system-level questions that require multibody dynamics simulation.

The Adams-Nastran integration (Adams Flex) is particularly valuable: MSC Nastran generates flexible body representations (Craig-Bampton superelements) that Adams incorporates into the multibody model, capturing the structural compliance effects that rigid-body models miss. This coupled workflow predicts ride quality and handling behaviour with the fidelity required for suspension tuning and sign-off.

With the EV transition, acoustic simulation has moved from a nice-to-have to a design-critical discipline. Actran provides purpose-built NVH, vibro-acoustic, and aero-acoustic simulation. The Nastran-Actran coupling enables a smooth workflow: structural vibration from Nastran drives acoustic analysis in Actran, predicting interior cabin noise levels that correlate with physical measurements.

Nonlinear Analysis: Marc

Components that undergo large deformation, complex contact, or nonlinear material behaviour require Marc. Rubber bushings, seals, gaskets, metal forming of body panels, and solder joint reliability in electronic assemblies are typical Marc applications in the automotive domain.

Materials Modelling: Digimat

Indian automotive suppliers increasingly use short-fibre reinforced plastics and composite materials for structural and semi-structural components. Digimat bridges the gap between manufacturing process simulation (injection moulding) and structural FEA, mapping fibre orientation from the moulding process into the Nastran model and computing the resulting anisotropic material properties. Without Digimat, FEA of injection-moulded parts uses isotropic material properties that can overpredict strength by 30-50% in fibre-depleted regions.

Manufacturing Simulation: Simufact

Simufact Additive handles metal additive manufacturing process simulation, predicting distortion, residual stress, and build failure before committing machine time. For Indian aerospace and automotive suppliers investing in metal AM for tooling, brackets, and functional prototypes, Simufact reduces failed builds and shortens AM development cycles.

The MSC One Token Pool

The practical enabler for this integrated workflow is MSC One, the token-based licensing model for the MSC Software portfolio. A shared pool of tokens flows between all the MSC simulation solvers based on project demand. A team that primarily uses Nastran can draw tokens for Adams during a vehicle dynamics study, add Actran for an NVH investigation, and pull Digimat tokens for a materials analysis, all from the same allocation.

For Indian engineering services companies and multi-disciplinary R&D teams, MSC One eliminates the license utilisation inefficiency of per-solver licensing while providing access to the full simulation portfolio.

Why Buy from GSAS

GSAS provides the complete Cadence simulation portfolio in India, MSC Nastran, Adams, Actran, Marc, Digimat, Simufact, VTD, with INR invoicing, application engineering support, and certified training workshops. We help automotive teams establish simulation workflows, build HPC infrastructure, and develop the internal competency to run simulation-led development programmes.

Engineering teams in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, Delhi NCR, and Visakhapatnam can contact GSAS for portfolio evaluation and deployment planning.

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