Abstract: A method of characterizing a material of an additively manufactured (AM) part includes establishing a computer aided engineering (CAE) model of the AM part, applying an excitation to the AM part, wherein boundary conditions of the AM part are free-free, measuring a vibration response of the AM part at predefined discretization points to generate vibration data, post processing the vibration data to obtain actual noise-vibration-harshness (NVH) modes of the AM part, comparing the actual NVH modes to NVH modes from the CAE model and calculating average differences, and updating the plurality of material properties in the CAE model if the average differences exceed a predetermined threshold. Executing an NVH CAE modal analysis, obtaining updated NVH CAE modes, and comparing new NVH modes to prior NVH modes is repeated with updated material properties if the average differences between updated NVH CAE modes and actual NVH modes are above the predetermined threshold.

Abstract: This disclosure generally relates to a system, apparatus, and method for achieving an adaptive vehicle state-based hands free noise reduction feature. A noise reduction tool is provided for adaptively applying a noise reduction strategy on a sound input that uses feedback speech quality measures and machine learning to develop future noise reduction strategies, where the noise reduction strategies include analyzing vehicle operational state information and external information that are predicted to contribute to cabin noise and selecting noise reducing pre-filter options based on the analysis.

Abstract: An acoustic panel for a vehicle includes a floor panel, an underbody acoustic shield, and a perimeter seal positioned between the floor panel and the underbody acoustic shield to form a pocket of trapped air. The pocket of trapped air can further reduce a transmission of noise through the floor panel into the vehicle interior.

Abstract: An exemplary vehicle flow influencing assembly includes a deflector formed together with a seal that provides a portion of a glass run for a side window of a vehicle. The deflector projects outward from the vehicle when the side window is lowered such that the deflector influences flow over an opening to a passenger compartment of the vehicle. A vehicle flow influencing assembly includes a pillar that is directly forward a side window of a vehicle, and a deflector configured to influence flow over an opening to a passenger compartment of the vehicle. The opening is provided by positioning the side window in an open position. The deflector extends longitudinally in a direction aligned with the pillar. The deflector projects outward from a primary surface of the pillar when the side window is closed and when the side window is open.

Abstract: This disclosure generally relates to a system, apparatus, and method for achieving a vehicle state-based hands free noise reduction feature. A noise reduction tool is provided for applying a noise reduction strategy on a sound input that uses machine learning to develop future noise reduction strategies, where the noise reduction strategies include analyzing vehicle operational state information and external information that are predicted to contribute to cabin noise and selecting noise reducing pre-filter options based on the analysis. The machine learning may further be supplemented by off-line training to generate a speech quality performance measure for the sound input that may be referenced by the noise reduction tool for further noise reduction strategies.

Abstract: This disclosure generally relates to a system, apparatus, and method for achieving an adaptive vehicle state-based hands free noise reduction feature. A noise reduction tool is provided for adaptively applying a noise reduction strategy on a sound input that uses feedback speech quality measures and machine learning to develop future noise reduction strategies, where the noise reduction strategies include analyzing vehicle operational state information and external information that are predicted to contribute to cabin noise and selecting noise reducing pre-filter options based on the analysis.

Abstract: The present disclosure relates to various vehicle frame assemblies and methods of manufacturing the same. The vehicle frame assemblies have rails composed of dissimilar materials.

Abstract: The present disclosure relates to methods of manufacturing vehicle frame assemblies. Some of the disclosed methods include forming a key and receptor arrangement between an interconnecting member, having a first material composition, and a cross-member, having a second material composition; attaching the interconnecting member and cross-member via the key and receptor arrangement at one location; inserting the interconnecting member and cross-member in a side rail; and welding the interconnecting member to the side rail at another location.

Abstract: The present disclosure relates to a vehicle glazing assembly with noise and vibration reduction techniques, having: a panel; and a first layer of first stiffening material applied at a perimeter of the panel.

Abstract: The present disclosure relates to a vehicle glazing assembly with noise and vibration reduction techniques, having: a panel; and a first layer of first stiffening material applied at a perimeter of the panel.

Abstract: An aluminum tubular beam is assembled to a steel box frame rail with a steel sleeve. The sleeve is connected by a crimp joint or by a hem flange to the tubular beam. The steel sleeve may be effectively welded to the steel box frame rail to which it is assembled. An adhesive may be provided between the sleeve and the beam.

Abstract: An aluminum tubular beam is assembled to a steel box frame rail with a steel sleeve. The sleeve is connected by a crimp joint or by a hem flange to the tubular beam. The steel sleeve may be effectively welded to the steel box frame rail to which it is assembled. An adhesive may be provided between the sleeve and the beam.

Abstract: The present disclosure relates to methods of manufacturing vehicle frame assemblies. Some of the disclosed methods include forming a key and receptor arrangement between an interconnecting member, having a first material composition, and a cross-member, having a second material composition; attaching the interconnecting member and cross-member via the key and receptor arrangement at one location; inserting the interconnecting member and cross-member in a side rail; and welding the interconnecting member to the side rail at another location.

Abstract: The present disclosure relates to various vehicle cross-member assemblies and methods of manufacturing the same. The various vehicle cross-member assemblies have rails composed of dissimilar materials.

Abstract: The present disclosure relates to various vehicle frame assemblies and methods of manufacturing the same. The vehicle frame assemblies have rails composed of dissimilar materials.

Abstract: An interactive method and system for designing a door system for an automotive vehicle without the necessity of building a prototype is disclosed. Initially, a door system design is selected and a set of door system data describing attributes of a door structure, a door opening panel (DOP), mating surfaces of the DOP and the vehicle, vehicle attributes, hardware attributes, and seal system attributes are generated based on the selected design. A door system model is then generated from the door system data, and a design criteria for the door system is selected. Door system performance is then determined using predetermined conditions based upon the door system model by computing and displaying time histories of predefined parameters of the door system, door related hardware, and vehicle passenger compartment.

Abstract: A method and system for designing a door seal system is based upon a predicted contribution of the door seal system to sound pressure levels (SPLs) within a vehicle due to wind noise. A door seal system design is selected and a door seal system deformed geometry is determined. The deformed door seal system and acoustic media are combined to produce a fully coupled acoustic/structure model of the door seal system. A sound transmission loss is predicted for the door seal system design under predetermined conditions using acoustics, finite deformation rubber elasticity, and steady state harmonic viscoelasticity. The sound transmission loss and interior SPLs are then displayed, and the door seal design changed according to predefined rules to produce a seal design which provides a desired SPL in the vehicle.