Simulation and Modeling in Power Transmission

The SimulationX domain Power Transmission provides an extensive collection of libraries. These libraries support the efficient modeling and analysis of mechanical powertrains as well as the simulation-based design of con­trolled drive systems. All models can be parameterized in a user-friendly manner by values available from pro­duct data sheets and design parameters. Alternatively, the internally used ap­proa­ches can be substituted by the user with detailed information. In combination with animation bodies (library Animation Bodies) animated three-dimensional visualizations are created easily and quickly.

 

SimulationX Power Transmission Libraries

 

Motors and Engines

The library Motors and Engines includes various basic models of motors and engines, which are based on characteristics. These models can be used in wide range of applications in the auto­mo­tive or me­cha­nical engineering. All model types consider the drive inertia internally and allow connecting bear­ing struc­tures. All models compute non-uniformities exciting the powertrain.

 

Actuating Elements

The Actuating Elements library includes elements for physical gear shift simulations of manual or automated gearboxes. It provides the elements Gear Selection and Detent Mechanism.

 

Drive Accessory

The library Drive Accessory contains elements that simplify the modeling of drivetrains. For the modeling and analysis of mount torques, which act on the housing of rotary mass systems (engines, gearboxes, or differentials), the element Mount can be used. The element Shaft Segment can be used for efficient modeling of shafts.

 

Couplings and Clutches

The library Couplings and Clutches contains a multitude of model types to represent machine parts for the transmission of torques. The fast application of these powertrain components is ensured by preset default val­ues. The multifaceted possibilities of pa­ra­meterization, taking into account non-linearities, allow the precise selection of model properties (such as stif­fness, damping, hysteresis) very quickly.

 

Transmission Elements

The Transmission Elements library is considering much more than just one rotational degree of freedom, as it is known from the traditional torsional vibration analysis. Shaft and bearing properties (stiffness, damping, preload, …) can be considered by connecting further ele­ments to the respective degrees of freedom.

 

Planetary Gears

The library Planetary Gears contains model types for creating structures of helical planetary gears. The combination of these structures with the masses and the inertias of the gearbox components give the possibility to model all types of planetary gearboxes.

 

Synchronizers

The Synchronizers library contains model types, which enable the user to model synchronization systems or dog clutch shift systems, as used in manual gearboxes or AMTs.

 

Combustion Engines I

Within the library Combustion Engines I SimulationX provides many element types for modeling combustion engines. These combustion engine struc­tures can be used as components in powertrain models or for the analysis of combustion engines itself. The library includes model types to represent the excitation in engines (Fou­rier coefficients, cylinder pressures or excitation torques, engine map), rigid or elas­tic in­line cylinders or V-cylinder pairs, and several complete engine models (Diesel or gasoline engines, 2-stroke or 4-stroke).

 

 

Combustion Engines II

The library Combustion Engines II contains element types for the dynamic computation of the combustion in the cylinders. Furthermore, the library includes an element, which can be used for the controlling of the engine. The purchase of the library Combustion Engines II includes all element types of the library Combustion En­­gines I. The element of both libraries can be combined arbitrarily in user models.