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2015-06-25
Event
This session discusses the noise sources, noise signatures, noise control strategy, and NVH technology unique to electric and hybrid powered vehicles. It is intended to bring a greater awareness of the NVH characteristics of these new vehicles to all NVH practitioners. At the same time, it will provide a forum so that advances in power systems, drive trains, batteries, and energy storage can be addressed with appropriate NVH technology as needed.
2015-06-25
Event
This session covers experimental, computational, and analytical efforts related to the basic mechanisms and control techniques of noise and vibration in the breathing system (induction, combustion chamber, and exhaust) of naturally aspirated and supercharged/turbocharged engines. Noise sources include airborne, flow, flow‐acoustic and flow‐structure coupling.
2015-06-25
Event
This session is to present numerical and experimental work pertaining to noise due to flow around the vehicle body, such as flow-induced interior noise, flow over protrusions, sunroofs, windows, noise from ventilation systems, or flow noise in exhaust system. Papers on aerodynamics alone without sound are excluded. Numerical studies may include new models or models based on existing theory as long as they are adequately supported by experimental or theoretical verifications.
2015-06-25
Event
This session is dedicated to the tools and methodology involved in identifying, calculating and modifying various noise and vibration sources and paths in vehicles, aircraft and various consumer products and assist in the design and validation of noise and vibration targets
2015-06-25
Event
This session includes papers in the areas of static, dynamic, and fatigue characterization of elastomers, bushings, mounts and shock absorbers used in the mobility industry. Particular emphasis is given to new and innovative analysis and testing methodologies to quantify the non-linear properties of these systems in addition to the effects of temperature, frequency, and aging. Papers dealing with specific applications and case studies of existing methodologies are also welcome.
2015-06-25
Event
Silencer and muffler design is primarily accomplished via cut-and-try approaches in many industries. Noise issues are identified close to production and mufflers are designed and tested. In this workshop, a design process for mufflers is recommended. The steps that may be taken during the 1) clarification of task, 2) conceptual design, 3) detailed design, and 4) prototyping phases are outlined, and the process is demonstrated at each step for a cross-flow type muffler. It is shown that plane wave analysis is especially valuable in the conceptual design stage whereas numerical simulation is of greater value in the detailed design stage. Basics and tips for both plane wave analysis and numerical simulation are discussed. Measurement of transmission loss using the two-load method will be described and demonstrated using a transmission loss test bench.
2015-06-25
Event
The Structure Borne NVH Workshop continues with the same lecture team since inception in 2003. If you are still fuzzy about the new ideas you’ve seen, or from the hospitality suites the nights before, we have our new Thursday morning opportunity to root you in the fundamentals of Source-Path-Receiver Principles. A refined theoretical foundation covers the basics of low-frequency NVH , below 100 Hz, and mid-frequency, up to 500 Hz with guidelines for performance achievement. Recent advances in NVH Computer Aided Testing and Simulation will be reviewed drawn from the latest research efforts.
2015-06-25
Event
This session describes recent developments in the diagnosis and forecasting of icing conditions aloft.
2015-06-25
Event
This session includes reports on an assessment of the SEA multi-element sensor for LWC calibration of the NASA Icing Research Tunnel (IRT), the development of mixed phase and glaciated environments within the NRC AIWT, the calibration of the IWT Braunschweig for mixed phase and glaciated icing conditions, and a new high-speed insert for the NRC AIWT.
2015-06-25
Event
This session describes the development of new HAIC/HIWC instrumentation and testing of these instruments in wind tunnels.
2015-06-25
Event
This session includes an ice accretion prediction on engine nacelles in both liquid and solid phase, a bpoundary layer transition effect model study for ice protected airfoils, an icing modeling with Level-Set approach, and a multi-step icing calculations using the latest NSMB3D-ICE icing code.
2015-06-25
Event
This session includes a report on ice shape mapping by means of 4D scans, an experimental study of effects of high water content on icing tunnel air data parameters, and an application of an high speed imaging probe in the calibration of NRC-AIWT glaciated and mixed phase cloud.
2015-06-25
Event
This session will discuss icing observations and their use for validation and verification of icing products.
2015-06-25
Event
This session includes presentations on the development of new icing standards.
2015-06-25
Event
This session examines the use of ground-based remote sensing systems for inflight icing, including supercooled large drop (SLD) icing.
2015-06-25
Event
This session includes a study on the development of a fluid based IPS for UAV/UAS applications, a report on the development of a jet pump IPS for the A400M transporter, and an evaluation study of different ice adhesion tests for new mechanical deicing systems design.
Viewing 271 to 300 of 173227

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