Reciprocating Engine with Hydrodynamic Bearings
Application ID: 68571
This example investigates a single cylinder reciprocating engine supported by hydrodynamic bearings. A starting torque brings the engine to the required speed, after which a load torque is applied. Following start-up, the engine operates under the action of the cylinder pressure.
The engine assembly is modeled using the Multibody Dynamics interface, while the bearings are modeled using the Hydrodynamic Bearing interface. A Solid–Bearing Coupling multiphysics coupling connects the two interfaces.
The analysis evaluates the stress in the crankshaft and foundation, bearing pressure, engine speed, generated power, brake horsepower, and shaft orbits in the bearings.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- Multibody Dynamics Module and
- Rotordynamics Module and
- Structural Mechanics Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.
