Structural Optimization for Vehicle Crashworthiness
AssigneeHonda Motor Co., Ltd.
InventorSanjaya Fonseka
Life of this patent
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Abstract
Optimum gauges of components in a vehicle side structure that meet minimum roof crush test requirement and side impact crashworthiness analysis (SICE) requirements with minimal mass are identified using a global optimization algorithm. A grouping of iterations, wherein each iteration contains input components of varying thicknesses, is simulated using the roof crush and SICE models. A self adaptive evolution optimization algorithm is used to generate additional groupings of iterations based on intermediate optimum results of a previous grouping. The additional groupings are simulated one or more times to identify a global optimum thickness of components in a vehicle side structure.
Claims20
A computer based method for finding optimum thickness of components in a vehicle side structure, the method comprising:
- receiving a first grouping of iterations, wherein each iteration comprises a thickness values for each component in the side structure;
- simulating a roof crush crash test for iterations in the first grouping;
- simulating a side impact crashworthiness evaluation crash test for iterations in the first grouping;
- receiving results for the roof crush simulation and the side impact crashworthiness evaluation identifying at least one intermediate optimum result from the received results;
- generating additional groupings of iteration, each additional grouping based on intermediate optimum results of a previous grouping;
- simulating the roof crush crash test and side impact crashworthiness evaluation crash test for each iteration in each additional grouping;
- and
- identifying at least one optimized result.
A system for finding optimum thickness of components in a vehicle side structure, the system comprising:
- a computer processor for executing executable computer program code;
- a computer-readable storage medium containing the executable computer program code for performing a method comprising:
- receiving a first grouping of iterations, wherein each iteration comprises a thickness values for each component in the side structure;
- simulating a roof crush crash test for iterations in the first grouping;
- simulating a side impact crashworthiness evaluation crash test for iterations in the first grouping;
- receiving results for the roof crush simulation and the side impact crashworthiness evaluation identifying at least one intermediate optimum result from the received results;
- generating additional groupings of iteration, each additional grouping based on intermediate optimum results of a previous grouping;
- simulating the roof crush crash test and side impact crashworthiness evaluation crash test for each iteration in each additional grouping;
- and
- identifying at least one optimized result.
A computer program product for finding optimum thickness of components in a vehicle side structure, the computer program product comprising a computer-readable storage medium containing computer program code for:
- receiving a first grouping of iterations, wherein each iteration comprises a thickness values for each component in the side structure;
- simulating a roof crush crash test for iterations in the first grouping;
- simulating a side impact crashworthiness evaluation crash test for iterations in the first grouping;
- receiving results for the roof crush simulation and the side impact crashworthiness evaluation identifying at least one intermediate optimum result from the received results;
- generating additional groupings of iteration, each additional grouping based on intermediate optimum results of a previous grouping;
- simulating the roof crush crash test and side impact crashworthiness evaluation crash test for each iteration in each additional grouping;
- and
- identifying at least one optimized result.
Dependencies are inferred from the claim text.