作者: AROMA 時間: 2025-3-22 00:18 作者: 印第安人 時間: 2025-3-22 01:47 作者: 造反,叛亂 時間: 2025-3-22 06:21 作者: condone 時間: 2025-3-22 12:15 作者: 新陳代謝 時間: 2025-3-22 16:51 作者: Demulcent 時間: 2025-3-22 18:20 作者: 煞費苦心 時間: 2025-3-22 23:27
Ethical Aspects of Phase I Studiesls is obtained and absorption, reflection and transmission coefficients calculated. The materials may also be combined in various layered assemblies. Furthermore, the meaning of the transfer matrix is explored with respect to previous studies on polyurethane foam microstructures.作者: Deject 時間: 2025-3-23 05:25
Measurement of Transfer Matrices of Polyurethane Foam Materials for Sound Absorption and Transmissils is obtained and absorption, reflection and transmission coefficients calculated. The materials may also be combined in various layered assemblies. Furthermore, the meaning of the transfer matrix is explored with respect to previous studies on polyurethane foam microstructures.作者: 貝雷帽 時間: 2025-3-23 06:11
2198-7432 en Fahrzeugen.Der Tagungsband zur ATZlive-Veranstaltung ?Automotive Acoustics Conference?2019“ befasst sich mit technischer Akustik und NVH, welche zu den?wichtigsten Indikatoren für Fahrzeugqualit?t und -verarbeitung geh?ren.?Mit den grundlegenden Ver?nderungen der Antriebstechnik rücken diese?Aspe作者: Celiac-Plexus 時間: 2025-3-23 12:52
Eigenbewertung der Prüfeinrichtungn the absence of prototype vehicles. Application examples are presented to show how the tool is utilized to facilitate powertrain NVH hardware/target compatibility decisions in the early stages of program development.作者: HACK 時間: 2025-3-23 16:21 作者: encomiast 時間: 2025-3-23 19:26
Auxiliary Equipment in Electric Vehicles,this paper is on the determination of characteristic values. The selection of specially tuned psychoacoustic analyses and a suitable combination of characteristic values are demonstrated using examples of tonal noise components.作者: aggrieve 時間: 2025-3-24 00:26
NVH Refinement Issues for BEV,ditional suppliers will need to rethink their approaches to preserve their revenue and profitability..The ZE driving implies “silence”. Consequently, some NVH performances are to be increased for BEVs. The lack of IC engine noise masking exacerbates: the noises of different systems & devices, wind n作者: 鋸齒狀 時間: 2025-3-24 04:22 作者: 不朽中國 時間: 2025-3-24 06:48 作者: 系列 時間: 2025-3-24 11:15 作者: 演繹 時間: 2025-3-24 16:05 作者: 散步 時間: 2025-3-24 21:28
,Attribute Balancing – Trading-Off Noise Versus Emissions, Ride and Handling and Driveability, measures were optimized for drive-cycle fuel efficiency, combustion noise and engine mass..Car makers must provide cruising comfort through low road noise (more prominent with quieter electric propulsion) and simultaneously deliver competitive driving dynamics. A vehicle structure’s dynamic respons作者: embolus 時間: 2025-3-25 00:27
Using 3-Dimensional Transfer Path Analysis to Predict the In-vehicle Electrical Power Steering Noisear for several different automotive systems. However, conducting a TPA on an EPS at the vehicle level presents a challenge in visualizing and interpreting the data since a continuous speed sweep is not possible to cover the entire operating speed range of the EPS. Typically, several lock-to-lock it作者: 幻影 時間: 2025-3-25 07:09 作者: 乏味 時間: 2025-3-25 09:04
,Locally Resonant Metamaterial Patches on Rear Shock Towers of a Vehicle to Reduce Structure?Borne R a commercial vehicle. A?LRM solution is applied on the rear shock towers of the vehicle, with the goal of attenuating the vibrational energy entering into the vehicle body through the suspension assembly, which is excited by the interaction of the tire with the road while driving. This results in a作者: 本土 時間: 2025-3-25 12:04 作者: Nonflammable 時間: 2025-3-25 19:10
Parametric Analysis of an Automotive Wheel Arch Acoustic Treatment,k for the efficient simulation, including parametric analysis, of wheel arch acoustic treatments. A finite element scheme is used to solve the acoustic propagation of different sources around a car tire while a locally-reacting admittance boundary condition is used to model the wheel arch acoustic t作者: 物種起源 時間: 2025-3-25 20:34 作者: 賠償 時間: 2025-3-26 04:00 作者: 意外的成功 時間: 2025-3-26 06:31 作者: Bereavement 時間: 2025-3-26 10:52
Optimierte Planung in der Humanpharmakologie Analysis (SEA) and Finite Elements Methods (FEM), can support the NVH design of BEV floor systems. This includes how they can be exploited for the optimization of an integrated NVH package, including not only the carpet and damping pads, but also battery sealing and treatments between the battery a作者: hypnotic 時間: 2025-3-26 15:47 作者: Wernickes-area 時間: 2025-3-26 17:08 作者: 倫理學 時間: 2025-3-26 22:46 作者: 詳細目錄 時間: 2025-3-27 03:22 作者: Overdose 時間: 2025-3-27 05:41
Regelung der Verantwortungen: Auftragnehmerudies: one for engine booming noise and one for gear noise. It is shown how the proposed KPI can fit in a robust target cascading process that can be used throughout the different project phases..Since the final host vehicle is often not available during the component development, it is important th作者: depreciate 時間: 2025-3-27 13:15 作者: 兇兆 時間: 2025-3-27 15:35
Konzepte in der Humanpharmakologie definition of corresponding reduction targets and eventually design concrete countermeasures to achieve them. In particular, in this last step, vehicles are to be fitted with some optimized exterior acoustic package, which requires a thorough insight into the noise radiation from both powertrain an作者: 疲憊的老馬 時間: 2025-3-27 19:56
Eigenbewertung der Prüfeinrichtungk for the efficient simulation, including parametric analysis, of wheel arch acoustic treatments. A finite element scheme is used to solve the acoustic propagation of different sources around a car tire while a locally-reacting admittance boundary condition is used to model the wheel arch acoustic t作者: SLING 時間: 2025-3-27 22:28 作者: dagger 時間: 2025-3-28 05:12 作者: output 時間: 2025-3-28 07:17 作者: accessory 時間: 2025-3-28 12:44
NVH Design Criterion of Electric Powertrain Mounts,f electric vehicles is mainly the high-frequency whining noise generated by electromagnetic forces and transmission gear meshing. Although the radiated sound power is far less than that of an internal combustion engine, the high frequency noise of the electric motor and the transmission is much anno作者: 凌辱 時間: 2025-3-28 18:34
Methods and Solutions for the Integration of the HV Battery into the NVH Development of a BEV,f vehicles. With the development of specific vehicle platforms for electric cars, NVH strategies and technologies may strongly change and with them the challenges for NVH engineers..The integration of the battery pack system in the vehicle is steering the focus towards an “integrated” design of the 作者: acolyte 時間: 2025-3-28 20:04 作者: 斜谷 時間: 2025-3-29 02:49 作者: 隱藏 時間: 2025-3-29 04:38
Measurement of Transfer Matrices of Polyurethane Foam Materials for Sound Absorption and Transmissiive applications. A challenge for developing new acoustic materials is to have a reliable, reproducible and representative small-scale measurement technique to obtain acoustic properties of polyurethane foam. In this paper we present a new measurement technique, based on an impedance tube, where the作者: Sigmoidoscopy 時間: 2025-3-29 08:37 作者: Lime石灰 時間: 2025-3-29 13:23
Using 3-Dimensional Transfer Path Analysis to Predict the In-vehicle Electrical Power Steering Nois that the end customer will find objectionable (roughness, whine?…?etc.) before start of production. This includes the determination of critical noise rating drivers and propagation of noise to the driver’s ear through several vehicle tests. However, early in development, vehicles are not easily ava作者: 盡忠 時間: 2025-3-29 15:59 作者: 飲料 時間: 2025-3-29 19:42 作者: 智力高 時間: 2025-3-30 02:44 作者: 忍受 時間: 2025-3-30 06:10 作者: Kidney-Failure 時間: 2025-3-30 09:43
Parametric Analysis of an Automotive Wheel Arch Acoustic Treatment,mitted noise level while meeting other constraints such as weight, space or sound quality, the OEM’s and their suppliers have to come up with innovative solutions to reduce the different noise sources and control the noise propagation around the vehicle. In particular, powertrain and tire noise sour作者: 比賽用背帶 時間: 2025-3-30 14:44
Robustness and Variability Prediction of Electric Machine Noise Using CAE,c sound of electric vehicles is the tonal noise from the e-machine. This paper first shows how this tonal noise can be simulated and validated by measurement. It has been observed in vehicle measurements that identically designed electric axles can have a very high deviation in noise, so the questio作者: Dappled 時間: 2025-3-30 16:32 作者: Disk199 時間: 2025-3-30 23:39 作者: 音樂會 時間: 2025-3-31 02:51 作者: Promotion 時間: 2025-3-31 07:29 作者: athlete’s-foot 時間: 2025-3-31 09:13 作者: 預定 時間: 2025-3-31 16:12
Optimierte Planung in der Humanpharmakologief vehicles. With the development of specific vehicle platforms for electric cars, NVH strategies and technologies may strongly change and with them the challenges for NVH engineers..The integration of the battery pack system in the vehicle is steering the focus towards an “integrated” design of the 作者: 戲服 時間: 2025-3-31 18:43
Regelung der Verantwortungen: Auftraggebere of masking by the internal combustion engine during EV operation may be critical due to the appearance of noises that the customer is not used to hear (e-compressor, cooling pumps, electro-hydraulic actuators etc.). On the other hand, the absence of ICE noise may be an opportunity for designing ar作者: conspicuous 時間: 2025-3-31 23:52 作者: Predigest 時間: 2025-4-1 04:17
Ethical Aspects of Phase I Studiesive applications. A challenge for developing new acoustic materials is to have a reliable, reproducible and representative small-scale measurement technique to obtain acoustic properties of polyurethane foam. In this paper we present a new measurement technique, based on an impedance tube, where the作者: notice 時間: 2025-4-1 06:41
Qualit?tssicherung in der Humanpharmakologies. It is commonplace to see trade-off relationships between noise and other important attributes. Balancing decisions are best made when detailed information is available through appropriate simulation and testing. This paper describes three case studies exemplifying such trade-off situations, and t
