Welcome
What's New
View new features for MotionSolve 2026.
MotionSolve Overview
MotionSolve is an integrated solution to analyze, evaluate, and optimize the performance of multibody systems.
Tutorials
Discover MotionSolve functionality with interactive tutorials.
MotionSolve User Guide
MotionSolve is a system level, multibody solver that is based on the principles of mechanics.
MotionSolve Reference Guide
This manual provides a detailed list and usage information regarding command statements, model statements, functions and the Subroutine Interface available in MotionSolve.
- MotionSolve Notation and Syntax
- Creating MotionSolve XML Files
- Writing Custom Elements for MotionSolve
- Writing Custom Functions for MotionSolve
- Supported Versions - Third Party Software in MotionSolve
- MotionSolve Command Statements
- MotionSolve Model Statements
- MotionSolve Functions
- The Subroutine Interface for MotionSolve
- MotionSolve ADM/ACF Entities
- MotionSolve NLFE Statements
  - NLFE Statements - Line Elements
    - ABUSH
      Line ElementABUSH defines a bushing between two NLFE grid nodes.
    - BEAM9
      Line ElementBEAM9 defines a gradient deficient NLFE beam element.
    - BEAM12
      Line ElementBEAM12 defines a fully parameterized NLFE beam element.
    - BEAMC
      Line ElementBEAMC defines an NLFE beam element with a circular cross section.
    - CABLE
      Line ElementCABLE defines an NLFE cable element.
    - LINE2
      Line ElementLINE2 defines a spring and damper between two NLFE grid nodes.
    - LINE3
      Line ElementLINE3 defines a spring and damper between three NLFE grid nodes.
    - LINE4
      Line ElementLINE4 defines a spring and damper between four NLFE grid nodes.
  - NLFE Statements - Connector Elements
  - NLFE Statements - Concentrated Mass Elements
  - NLFE Statements - Material Properties
  - NLFE Statements - Geometric Properties
  - NLFE Statements - Model Element
- msolve API Statements

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NLFE Statements - Line Elements