Development tools

Efficient engineering at DSD begins with reliable simulation techniques that allow sensitivity analysis in key areas to rank design options long before investing time in detailed CAD models.

The company uses MASTA, Abaqus and ANSYS simulation software, FEA (including contact analysis) and MATLAB SIMULINK (for torsional systems, selectors, clutches and synchronisers). Its DOE (Design of Experiments) methods provide solutions optimised for each customer’s manufacturing tolerances, not just the nominal component dimensions.

An extensive library of Excel-based calculations, developed and validated through long experience, supports the analytical software, providing rapid optimisation of specific parameters for individual applications.

CAD Systems

DSD’s engineers use the industry-standard CAD systems, including CATIA, Unigraphics, Creo (Pro-E) and Inventor (Autodesk) and always uses the customers preferred system. As well as design, these tools are also used to provide integrated analysis and simulation packages.

MASTA – Simulation and Analysis

DSD uses and is a beta tester of MASTA software for the simulation and engineering of transmissions and drivelines. This integrated driveline system design and analysis software, written by Smart Manufacturing Technology, incorporates: 2D design layout of a full transmission; gear design and analysis; 3D LTCA of gears with root stress; Bevel and Hypoid gear design and analysis; advanced bearing contact analysis; shaft fatigue analysis; NVH/dynamic analysis including full component mode simulation, and gear manufacturing simulation.

It is a versatile tool that enables an efficient creation of concept solutions. It provides detailed analysis on noise, durability or efficiency at an early stage, before investing in CAD time.

Finite Element Analysis (FEA)

The DSD team uses FEA to evaluate individual components and full systems for stress, stiffness and fatigue. By using MASTA first we can highlight any issues that need to be evaluated through FEA and also accurately determine the deflections that need to be simulated.

Using FEA and MASTA we would commonly evaluate the following criteria:

  • Gear / shaft / Bearing / Casing System
  • Forced Response
  • Powertrain Bending
  • Loaded gear contact analysis
  • Contact modelling
  • Thermal modelling

Time Domain Simulation

Real-time plant model and non real-time high fidelity simulation models allows full understanding of complex interactions.

Extensive time domain detailed simulation capability:

  • Synchroniser and dog clutch simulation, including contact dynamics
  • High fidelity HiL / SiL models
  • Vehicle launch simulation and optimisation
  • Hydraulic simulation
  • Differential performance
  • Torsional dynamics
  • Matlab/Simulink
  • AME-Sim capability
  • Advanced optimisation techniques utilised