公开(公告)号：US20190099823A1

公开(公告)日：2019-04-04

申请号：US15723679

申请日：2017-10-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kshitiz Swaroop ,  Varun Agarwal ,  Biswajit Tripathy

IPC: B23K9/095 ,  G05B19/418

Abstract: A computer-implemented method for reducing spot welds in a parameterized workpiece model includes generating a new design space (DS) from an original spot weld DS. The new DS includes a plurality of spot weld locations from the parameterized workpiece model with the original spot weld DS. The new DS is optimized to have a fewer number of spot weld locations than the original DS. The processor identifies a plurality of offending spot weld locations of the remaining spot weld locations in the new DS and a plurality of conforming spot weld locations of the remaining spot weld locations. The processor removes all but one optimized extension candidate from processor-selected groupings of welds while enforcing a minimum distance requirement. The processor outputs an inter-distance constrained parameterized workpiece model with an optimized extension candidate in each of the plurality of extended DSs to an operatively connected output processor.

公开(公告)号：US11981268B2

公开(公告)日：2024-05-14

申请号：US17500320

申请日：2021-10-13

Applicant: GM Global Technology Operations LLC

Inventor： Varun Agarwal ,  Biswajit Tripathy ,  Rajamanickam Vs

IPC: B60R13/02 ,  B60R21/04 ,  F16F7/12 ,  B33Y80/00

CPC classification number: B60R13/0212 ,  B60R21/04 ,  F16F7/121 ,  B33Y80/00 ,  B60R2021/0435 ,  B60R2021/0442

Abstract: An energy absorbing material includes a multi-cellular structure formed from a plurality of interconnected cells having a lattice structure. Each of the plurality of interconnected cells includes at least four nodes and at least one lattice element extending between each of the at least four nodes. The at least one lattice element has a diameter no greater than 2.5 mm.

公开(公告)号：US10695857B2

公开(公告)日：2020-06-30

申请号：US15723679

申请日：2017-10-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kshitiz Swaroop ,  Varun Agarwal ,  Biswajit Tripathy

IPC: G06F30/337 ,  B23K9/095 ,  G05B19/418 ,  B23K11/11 ,  B23K11/25 ,  B23K11/24 ,  B23K31/12 ,  B23K101/00

Abstract: A computer-implemented method for reducing spot welds in a parameterized workpiece model includes generating a new design space (DS) from an original spot weld DS. The new DS includes a plurality of spot weld locations from the parameterized workpiece model with the original spot weld DS. The new DS is optimized to have a fewer number of spot weld locations than the original DS. The processor identifies a plurality of offending spot weld locations of the remaining spot weld locations in the new DS and a plurality of conforming spot weld locations of the remaining spot weld locations. The processor removes all but one optimized extension candidate from processor-selected groupings of welds while enforcing a minimum distance requirement. The processor outputs an inter-distance constrained parameterized workpiece model with an optimized extension candidate in each of the plurality of extended DSs to an operatively connected output processor.

公开(公告)号：US20240051490A1

公开(公告)日：2024-02-15

申请号：US17883791

申请日：2022-08-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rajamanickam VS ,  Vivekananda Kinila ,  Biswajit Tripathy ,  Varun Agarwal

IPC: B60R21/34 ,  B62D25/10 ,  B62D27/02 ,  B32B5/18 ,  B32B3/26 ,  B32B7/12

CPC classification number: B60R21/34 ,  B62D25/105 ,  B62D27/026 ,  B32B5/18 ,  B32B3/263 ,  B32B7/12 ,  B32B2307/558 ,  B32B2605/08

Abstract: A hood assembly of a vehicle includes a hood outer panel defining an outer surface of the hood assembly, and a hood inner panel defining an inner surface of the hood assembly, such that a hood cavity is defined between the hood inner panel and the hood outer panel. An energy absorbing material is located at the hood inner panel. The energy absorbing material includes a multi-cellular structure formed from a plurality of interconnected cells having a lattice structure. Each of the plurality of interconnected cells includes at least four nodes and at least one lattice element extending between each of the at least four nodes. The at least one lattice element has a diameter no greater than 2.5 mm.

公开(公告)号：US20230116375A1

公开(公告)日：2023-04-13

申请号：US17500320

申请日：2021-10-13

Applicant: GM Global Technology Operations LLC

Inventor： Varun Agarwal ,  Biswajit Tripathy ,  Rajamanickam VS

IPC: B60R13/02 ,  B60R21/04

Abstract: An energy absorbing material includes a multi-cellular structure formed from a plurality of interconnected cells having a lattice structure. Each of the plurality of interconnected cells includes at least four nodes and at least one lattice element extending between each of the at least four nodes. The at least one lattice element has a diameter no greater than 2.5 mm.