Method and systems for off-line control for simulation of coupled hybrid dynamic systems

• US 10,339,265 B2
• Filed: 10/24/2016
• Issued: 07/02/2019
• Est. Priority Date: 10/02/2008
• Status: Active Grant

• Current Assignee: MTS Systems Corporation (Illinois Tool Works Inc.)
• Original Assignee: MTS Systems Corporation (Illinois Tool Works Inc.)
• Inventors: Fricke, David M.
• Primary Examiner(s): Dalbo, Michael J
• Application Number:
  US15/332,106
• Publication Number:
  US 20170039313A1
• Time in Patent Office: 981 Days
• CPC Class Codes: G01M 17/007 Wheeled or endless-tracked vehicles G01M17/08 takes precedence
• CPC Class Codes: G01M 17/0074 Details, e.g. roller construction, vehicle restraining devices
• CPC Class Codes: G01M 17/027 using light, e.g. infrared, ultraviolet or holographic techniques
• CPC Class Codes: G01M 17/04 Suspension or damping
• CPC Class Codes: G06F 30/15 Vehicle, aircraft or watercraft design
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

Systems and methods are provided for controlling the simulation of a coupled hybrid dynamic system. A physical test rig configured to drive the physical structure component of the system and to generate a test rig response as a result of applying a test rig drive signal. A processor is configured with a virtual model of a complementary system to the physical structure component. The processor receives the test rig response and generates a response of the complementary system based on a received test rig response. The system can be driven with a random input. The processor compares the test rig response with the response of the complementary system, the difference being used to form a system dynamic response model.

Claims

1. An arrangement for controlling a coupled hybrid dynamic system comprising modeled components in a virtual model and physical components, the arrangement comprising:

a physical test rig configured to drive the physical structural components and generate a test rig response comprising a coupling response corresponding to an input to the virtual model and a convergence response that is compared to an output of the virtual model;

a storage device; and

a processor operable with the storage device to store a virtual model of a complementary system to the physical structural components, the virtual model comprising a model of a disembodied assembly, the processor configured to;

obtain a virtual dynamic response of the virtual model of the disembodied assembly;

obtain a combined virtual dynamic response for a plurality of disembodied assemblies using the virtual dynamic response for the disembodied assembly; and

obtain the system dynamic response model using the combined virtual dynamic response, the coupling response and the convergence response.

2. The arrangement of claim 1 wherein processor is configured to obtain the combined virtual dynamic response by using the virtual dynamic response for the disembodied assembly repeatedly for each disembodied assembly of the plurality of disembodied assemblies.

3. The arrangement of claim 1 wherein the processor wherein the processor is configured to:

obtain a first dynamic response using the drive of the physical structural components and the coupling response;

obtain a second dynamic response using the drive of the physical structural components and the convergence response

obtain a dynamic response matrix using the combined virtual dynamic response for the plurality of disembodied assemblies and the first dynamic response; and

obtain the system dynamic response model using the dynamic response matrix and the second dynamic response.

4. A method of controlling a coupled hybrid dynamic system comprising modeled components in a virtual model and physical components, the virtual model being a complementary system to the physical structural components, the virtual model comprising a model of a disembodied assembly the method comprising:

controlling a physical test rig to drive the physical structural components and generate a test rig response comprising a coupling response corresponding to an input to the virtual model and a convergence response that is compared to an output of the virtual model, and

applying a virtual drive to the model of the disembodied assembly using a processor and obtain a virtual model response;

obtaining a virtual dynamic response for the disembodied assembly using the virtual drive applied to the model of the disembodied assembly and the virtual model response;

obtaining a combined virtual dynamic response for the plurality of disembodied assemblies using the virtual dynamic response for the disembodied assembly repeatedly in the virtual dynamic response for the plurality of disembodied assemblies;

obtaining a first dynamic response using the drive of the physical structural components and the coupling response;

obtaining a second dynamic response using the drive of the physical structural components and the convergence response;

obtaining a dynamic response matrix using the combined virtual dynamic response for the plurality of disembodied assemblies and the first dynamic response; and

obtaining the system dynamic response model using the dynamic response matrix and the second dynamic response.