Project study

Static, modal and fatigue assessment of fluid-line assemblies

An automated FEA workflow assessed routed tube and hose assemblies with brackets across static loads, modes, vibration excitation and fatigue.

FEA mesh detail of a routed automotive fluid-line assembly — Automotive · FEA structural analysis

Industry: Automotive
Services: FEA structural analysis

Engineering question

Lines, brackets and flexible transitions had to be treated as one load path even though local connections and system modes required different model fidelity.

Model & approach

Combine shell, beam and connection elements in an efficient assembly model
Evaluate static, modal, harmonic and random-vibration cases through a consistent post-processing chain

Boundary conditions

Dry and fluid-filled mass contributions with several acceleration directions
Project-specific supports, brackets, hoses and excitation spectra

Results of the assessment

The model chain exposed global modes and local connection demand together.
Automated reporting enabled consistent comparison across complete variant sets.

Engineering consequence

Critical line sections and brackets could be prioritized for detail change, additional checking or robust design.

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