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Journal articles on the topic 'NVH design'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Cardillo, Marco, Federico Di Marco, and Francesca Ronzio. "Ganzheitliches NVH-Design für Hochvoltbatterien in BEVs." ATZ - Automobiltechnische Zeitschrift 122, no. 12 (2020): 52–58. http://dx.doi.org/10.1007/s35148-020-0346-y.

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2

Qatu, M., M. Sirafi, and F. Johns. "Robustness of powertrain mount system for noise, vibration and harshness at idle." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 10 (2002): 805–10. http://dx.doi.org/10.1177/095440700221600103.

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Noise, vibration and harshness (NVH) has become an increasingly important attribute in vehicle engineering. At idle conditions, customer-perceived NVH is dominated by powertrain NVH. Powertrain NVH can be radiated engine noise or noise (and vibration) transmitted through the powertrain mounting system. This paper discusses the variability in the latter NVH as a function of the variability of the mount stiffness parameters. A simple six-degree-of-freedom model is used in the analysis. A detailed design of experiment studies was conducted. It is concluded that better control of mount stiffness p

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3

Graf, Bernhard, Alfred Rust, Mehdi Mehrgou, and Hu Zhenyue. "Effect of Cranktrain Design on Engine NVH Performance." MTZ worldwide 78, no. 9 (2017): 70–75. http://dx.doi.org/10.1007/s38313-017-0087-9.

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4

Gao, Zhi Lin, Qing Hua Kong, Jian Pin Lin, Qiao Sheng Hu, and Yan Chen. "A New Design Method of Body-in-White Lightweight Considering NVH Performance." Advanced Materials Research 482-484 (February 2012): 1979–84. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1979.

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With the development of the auotomobile industry, the body-in-white has to meet the dual requirements of lightweight and NVH performance. This study put forward a new lightweight design method considering NVH performance. An example of lightweighting a non-load-bearing body-in-white was given to illustrate the design flow of this method and certificate the effectiveness and applicability. In order to accurately find out the neutral contribution panels which almost have no influence on the interior acoustic field, a new parameter, the weighted acoustic contribution, was introduced to analyze an

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5

Juang, T. B., M. Cheng, and L. Na. "Experimental and finite element analyses of a sliding-tube-type driveshaft-induced vehicle vibration." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 221, no. 3 (2007): 375–85. http://dx.doi.org/10.1243/14644193jmbd76.

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Driveline noise, vibration, and harshness (NVH) has become an integral attribute in defining how the vehicle NVH performance is perceived by the customers of the automotive industry. The driveshaft component design requirements need to make sure that the designed driveline system is robust and reliable in order to achieve the vehicle NVH targets. They also need to ensure that the system maintains its durability performance as well. A slip mechanism in the driveline system is needed to accommodate the movements caused by the rear axle and rear suspensions when the vehicle travels on a rough roa

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von Wysocki, Timo, Michael Leupolz, and Frank Gauterin. "Metamodels Resulting from Two Different Geometry Morphing Approaches Are Suitable to Direct the Modification of Structure-Born Noise Transfer in the Digital Design Phase." Applied System Innovation 3, no. 4 (2020): 47. http://dx.doi.org/10.3390/asi3040047.

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Noise vibration and harshness (NVH) development often takes place in the later development phases. Shifting the optimization to the early digital development phase enables more parameters to participate in the optimization and leads to a more holistic development process. Digital NVH development often modifies system and component frequency response functions (FRFs) using finite element (FE) simulation. Currently, the often manual process of creating new FE models for modified designs makes a systematic evaluation of many designs difficult and time-consuming. In this paper, we take on these di

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Ni, E.-J., D. S. Snyder, G. F. Walton, et al. "Radiated Noise from Tire/Wheel Vibration." Tire Science and Technology 25, no. 1 (1997): 29–42. http://dx.doi.org/10.2346/1.2137528.

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Abstract As a general trend, vehicle sound quality has significantly improved in recent years. This is primarily due to improved body structure and powertrain design. As demand for better vehicle sound quality increases, it is important to study all possible noise sources contributing to noise, vibration, and harshness (NVH). Tire vibration has long been recognized as a source of airborne noise. Some effects of wheel design on tire noise have also been well understood for sometime. But the dynamic interaction between tire and wheel designs and its effect on vehicle NVH, although frequently obs

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8

Jay, Alastair, Thomas Deighan, Nozomu Kato, and Kiyofumi Sato. "Piston Design for Optimizing Trade-off of Friction and NVH." SAE International Journal of Passenger Cars - Mechanical Systems 9, no. 3 (2016): 1125–35. http://dx.doi.org/10.4271/2016-01-1855.

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9

Armentani, Enrico, Venanzio Giannella, Antonio Parente, and Mauro Pirelli. "Design for NVH: topology optimization of an engine bracket support." Procedia Structural Integrity 26 (2020): 211–18. http://dx.doi.org/10.1016/j.prostr.2020.06.024.

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10

Takahashi, Naoki, Srinivas Kodiyalam, and Kazuhiro Iijima. "Crash-NVH Multidisciplinary Design Optimization of a Car body structure." Proceedings of the JSME annual meeting 2003.6 (2003): 5–6. http://dx.doi.org/10.1299/jsmemecjo.2003.6.0_5.

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11

ITO, Takanori, Takuya YOSHIMURA, Akira SUTO, and Nobuo AIZAWA. "Optimum Design for Car Body Floor Panel with considering NVH." Proceedings of Design & Systems Conference 2002.12 (2002): 388–91. http://dx.doi.org/10.1299/jsmedsd.2002.12.388.

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12

Cardillo, Marco, Federico Di Marco, and Francesca Ronzio. "Integrated NVH Design of High-voltage Battery Systems for BEVs." ATZ worldwide 122, no. 12 (2020): 52–58. http://dx.doi.org/10.1007/s38311-020-0319-5.

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13

Zhang, Jun, Guo Zhe Shen, Yu Du, and Ping Hu. "Modal Analysis of a Lightweight Engine Hood Design Considering Stamping Effects." Applied Mechanics and Materials 281 (January 2013): 364–69. http://dx.doi.org/10.4028/www.scientific.net/amm.281.364.

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Modal frequency distribution of automotive structures or sub-structures is an important factor affecting the NVH performance. During lightweight optimizations of a part, the modal characteristics of the new design is often kept the same as those of the reference design to ensure that the NVH performance is not degraded. However, the effects of the part manufacturing process on the modal parameters are usually ignored in the design stage. In this study, four alternative designs of replacing the original steel hood of a passenger car with lightweight aluminum material are proposed. The stamping

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14

Bang, Tae-Kyoung, Kyung-Hun Shin, Jeong-In Lee, Hoon-Ki Lee, Han-Wook Cho, and Jang-Young Choi. "Experimental and Comparative Study of Rotor Vibrations of Permanent Magnet Machines with Two Different Fractional Pole/Slot Combinations." Applied Sciences 10, no. 24 (2020): 8792. http://dx.doi.org/10.3390/app10248792.

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This study deals with the noise, vibration, and harshness (NVH) characteristic analysis of permanent magnet synchronous motors (PMSMs) for electrical machines, such as electrically driven tools that are used in industries. An improved NVH design is needed for application to industrial tools. In general, the electromagnetic NVH characteristics of PMSMs are classified into electromagnetic excitation sources, such as total harmonic distortion of EMF, torque pulsation, magnetic pull force, and unbalanced magnetic force (UMF). This study compares the vibration and noise generated by fractional pole

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15

Elsherif, Noha Ibrahim, Abdulaziz Mohsen Al-Mahallawi, Abdelfattah Ahmed Abdelkhalek, and Rehab Nabil Shamma. "Investigation of the Potential of Nebivolol Hydrochloride-Loaded Chitosomal Systems for Tissue Regeneration: In Vitro Characterization and In Vivo Assessment." Pharmaceutics 13, no. 5 (2021): 700. http://dx.doi.org/10.3390/pharmaceutics13050700.

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In this study, we evaluated the synergistic effect of nebivolol hydrochloride (NVH), a third-generation beta-blocker and NO donor drug, and chitosan on the tissue regeneration. Ionic gelation method was selected for the preparation of NVH-loaded chitosomes using chitosan lactate and sodium tripolyphosphate. The effect of different formulation variables was studied using a full factorial design, and NVH entrapment efficiency percentages and particle size were selected as the responses. The chosen system demonstrated high entrapment efficiency (73.68 ± 3.61%), small particle size (404.05 ± 11.2

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16

Stoewer, Torsten, Johannes Ebert, and Tobias Melz. "Opportunities and Limitations of Structural Intensity Calculation Regarding Uncertainties in the NVH Design of Complex Vehicle Body Structures." Applied Mechanics and Materials 807 (November 2015): 78–86. http://dx.doi.org/10.4028/www.scientific.net/amm.807.78.

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The calculation of the structural intensity allows for a better understanding of the NVH behavior of complex structures as it shows vibratory energy flows between an excitation and radiating areas. However, the information gathered is underlying aleatory and epistemic uncertainties and needs to be dealt with carefully. In this paper two aspects are discussed: Firstly how the structural intensity calculation helps to reduce uncertainty in NVH design and secondly what currently existing uncertainties need to be considered and how they can be further reduced. This does not only include an improve

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17

Liu, Jie, Ling Tong, Chao Feng Li, and Bang Chun Wen. "Design Object Planning of Vehicle NVH Performance Improvement Based on HOQ." Applied Mechanics and Materials 16-19 (October 2009): 229–33. http://dx.doi.org/10.4028/www.scientific.net/amm.16-19.229.

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Basing on the system engineering 7D design planning model included the seven aspects of contents: design ideas, design environment, design objective, design step, design content, design method and design quality assessment. Combined the 7D design planning with House of Quality (HOQ), the model of design objective planning model was presented. In the model the satisfied degree of customer was the optimization object. The customer needs were satisfied with the engineering characteristics. The customer needs were analyzed with the analytic hierarchy process. The correlation among engineering char

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18

Liu, Jian, Gaoyuan Yu, Yao Li, Hongmin Wang, and Wensheng Xiao. "Multidisciplinary Design Optimization of Crankshaft Structure Based on Cooptimization and Multi-Island Genetic Algorithm." Mathematical Problems in Engineering 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/9596089.

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The feasibility design method with multidisciplinary and multiobjective optimization is applied in the research of lightweight design and NVH performances of crankshaft in high-power marine reciprocating compressor. Opt-LHD is explored to obtain the experimental scheme and perform data sampling. The elliptical basis function neural network (EBFNN) model considering modal frequency, static strength, torsional vibration angular displacement, and lightweight design of crankshaft is built. Deterministic optimization and reliability optimization for lightweight design of crankshaft are operated sep

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19

Haeussler, M., D. C. Kobus, and D. J. Rixen. "Parametric design optimization of e-compressor NVH using blocked forces and substructuring." Mechanical Systems and Signal Processing 150 (March 2021): 107217. http://dx.doi.org/10.1016/j.ymssp.2020.107217.

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20

Ambardekar, Milind, and Nayankumar Solanki. "Performance Cascading from Vehicle-Level NVH to Component or Sub-System Level Design." SAE International Journal of Vehicle Dynamics, Stability, and NVH 1, no. 1 (2017): 58–65. http://dx.doi.org/10.4271/2017-26-0205.

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21

Bin Talib, Mohamad Helmi, Nurulakmar Abu Husain, and Zaidi Farouk Bin Fauzi. "Preprocessing and Solving Finite Element Analysis for NVH Prediction." Applied Mechanics and Materials 471 (December 2013): 45–51. http://dx.doi.org/10.4028/www.scientific.net/amm.471.45.

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Current vehicle development period has become shorter; therefore, virtual testing has been considered as vital to assist design decision at the early stage of the development. Over the last three decades, Finite Element Method (FEM) is widely used to predict the Noise and Vibration level of a vehicle. With the latest technology of Computer Aided Engineering (CAE) simulation, the calculation time taken for NVH analysis can be reduced from few days to only few hours. This paper presents current simulation technique for automotive development using Altair Hyperworks as preprocessing tool for vehi

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22

Raichel, Daniel R. "Noise, vibration and harshness (NVH) criteria as functions of vehicle design and consumer expectations." Journal of the Acoustical Society of America 118, no. 3 (2005): 1887. http://dx.doi.org/10.1121/1.4779565.

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23

Taratorkin, A. I., A. V. Belevich, I. A. Taratorkin, and I. A. Trusevich. "Strategy for optimizing the NVH parameters of the transport vehicle powertrain during its design." IOP Conference Series: Materials Science and Engineering 971 (December 1, 2020): 052085. http://dx.doi.org/10.1088/1757-899x/971/5/052085.

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24

Yan, Zheng Feng, and Zheng Feng Jiang. "Research on the Integrated Design of Dual Mass Flywheel CAD/CAE/CAM." Key Engineering Materials 407-408 (February 2009): 169–73. http://dx.doi.org/10.4028/www.scientific.net/kem.407-408.169.

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Combining the research and development of dual mass flywheel, the paper explores the realizing methods of CAD/CAE/CAM integrated design system. The system is composed of modules including digital structure design and simulation, entire-car NVH analysis, analysis and optimization of formation process and welding process. Based on PDM technique, data sharing and integration could be realized through corresponding interface procedures by establishing a uniform product data model. The paper studies on the digital structure design and simulation, torsional vibration analysis, sheet material forming

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25

Zhang, Peng, Song He, Michael C. Muir, and G. S. J. Gautam. "Eccentricity Effects on NVH Performance of Interior Permanent Magnets Machines for Hybrid and Electric Vehicles." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 4 (2021): 2384–92. http://dx.doi.org/10.3397/in-2021-2124.

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For the hybrid electric vehicles (HEVs) and electric vehicles (EVs) applications, the electric machine drive unit system provides the main noise source, especially in the presence of faults. Eccentricity is one of the most common faults, which is mainly caused by the motors' package design and assembling process. There are four main types of eccentricity for motors: static offset, dynamic offset, static tilt and dynamic tilt, which are presented and analyzed. Both two-dimensional (2D) and 3-dimentional (3D) finite element analysis (FEA) are utilized in the electromagnetic field analysis for an

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26

Cheng, Yang, Yang Liang, and Luo Hong. "Design of a Web-Based Information Management Platform for Automotive Intake and Exhaust System." Applied Mechanics and Materials 148-149 (December 2011): 397–402. http://dx.doi.org/10.4028/www.scientific.net/amm.148-149.397.

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The management and sharing of varied automotive intake and exhaust system data makes it imperative for modern automotive companies. Based on needs of a certain company’s NVH department, much work has been done to analyze the data management method and data features, then a web platform based on B/S model has been built and also the solutions to transformation methods between different data types, data visualization, processing of massive data and data dynamic expansion are presented. Based on the key technologies, a practical web-based information system is designed for the management of intak

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27

Taratorkin, Alexander, Victor Derzhanskii, and Igor Taratorkin. "Optimization of transport vehicle transmission vibroacoustic characteristics." MATEC Web of Conferences 287 (2019): 03004. http://dx.doi.org/10.1051/matecconf/201928703004.

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One of the main sources of vibroacoustic emissions is the transmission of a transport vehicle. Providing a high level of fuel economy performance and an acceptable level of power-train noise and vibration (NVH) is a complex engineering task and a real professional challenge for NVH specialists. The purpose of the research is to provide the required level of vibroacoustic characteristics of the transport vehicle transmission being developed at the design stage through a feasible correction of structural characteristics. To achieve this goal requires deeper understanding the dynamic phenomena of

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28

Wong, Pak Kin, Zheng Chao Xie, Yu Cong Cao, and Ming Li. "Design and Optimization on Active Engine Mounting Systems for Vibration Isolation." Applied Mechanics and Materials 479-480 (December 2013): 202–9. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.202.

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In this paper, based on the previous research experiences in the lumped parameter modeling and study of active control mounts model, a test bench model of ACM in powertrain is described and the vibration model is implemented in MATLAB. In order to validate the implementation of the state equations in this work, a finite element analysis (FEA) method is used in ANSYS and compared with analytical model for validate. After the validation, the control strategy is integrated into the analytical model by using the linear quadratic regulator (LQR) method, which is a well know design technique that pr

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Guo, Li Xin, Guang Hao Ji, Lei Ping Zhao, and Jin Li Li. "Static and Dynamic Finite Element Analysis on the Steering System of Automobiles." Applied Mechanics and Materials 121-126 (October 2011): 3498–501. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3498.

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The steering system of automobiles might vibrate under external excitation loading. Severe vibration of the steering system maybe bring the drivers uncomfortable and even result to noise and damage of some parts of the steering system. In the same time, it can not be satisfied with NVH design requirement of automobiles. In this study a three- dimensional finite element model of a steering wheel of automobiles was established and finite element static and dynamic analyses were conducted in order to validate dynamic characteristics and strength of the steering system. The simulation results can

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Pan, Dao Yuan, Xiang Gao, Chang Gao Xia, and Hua Ding. "Optimal Design of Vehicle Power-Train Mounting System Based on Improved Particle Swarm Optimization." Advanced Materials Research 591-593 (November 2012): 1890–96. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1890.

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Applying the multi-dynamic theory, a dynamic model of the power-train mounting system of motor vehicles is established. An optimization model for the power-train mounting system is constructed, in which decoupling efficiency of six freedom vibrations is selected as objective function, and the natural frequency distribution of system as constraint condition, the stiffness and installing angles as design variables of optimization. Based on improved particle swarm optimization, as an example, isolation characteristics of a truck power-train mounting system are analyzed. The comparison between the

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31

Qatu, Mohamad S., Roger King, Rachel Wheeler, and Omar Shubailat. "Vehicle Design for Robust Driveline NVH Due to Imbalance and Runout Using a Monte Carlo Process." SAE International Journal of Passenger Cars - Mechanical Systems 4, no. 2 (2011): 1033–38. http://dx.doi.org/10.4271/2011-01-1546.

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32

von Wysocki, Timo, Frank Rieger, Dimitrios Ernst Tsokaktsidis, and Frank Gauterin. "Generating Component Designs for an Improved NVH Performance by Using an Artificial Neural Network as an Optimization Metamodel." Designs 5, no. 2 (2021): 36. http://dx.doi.org/10.3390/designs5020036.

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In modern vehicle development, suspension components have to meet many boundary conditions. In noise, vibration, and harshness (NVH) development these are for example eigenfrequencies and frequency response function (FRF) amplitudes. Component geometry parameters, for example kinematic hard points, often affect multiple of these targets in a non intuitive way. In this article, we present a practical approach to find optimized parameters for a component design, which fulfills an FRF target curve. By morphing an initial component finite element model we create training data for an artificial neu

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33

Dong, Jun, Kyung K. Choi, and Nam H. Kim. "Design Optimization for Structural-Acoustic Problems Using FEA-BEA With Adjoint Variable Method." Journal of Mechanical Design 126, no. 3 (2003): 527–33. http://dx.doi.org/10.1115/1.1701879.

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A noise-vibration-harshness (NVH) design optimization of a complex vehicle structure is presented using finite element and boundary element analyses. The steady-state dynamic behavior of the vehicle is calculated from the frequency response finite element analysis, while the sound pressure level within the acoustic cavity is calculated from the boundary element analysis. A reverse solution process is employed for the design sensitivity calculation using the adjoint variable method. The adjoint load is obtained from the acoustic boundary element re-analysis, while the adjoint solution is calcul

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34

Pinto, André F. B. P., S. M. O. Tavares, José M. A. César de Sá, and P. M. S. T. de Castro. "Structural analysis of a cross car beam using finite element models." International Journal of Structural Integrity 6, no. 6 (2015): 759–74. http://dx.doi.org/10.1108/ijsi-01-2015-0004.

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Purpose – The purpose of this paper is to use PAM-CRASH, a finite element analysis solver, to assess the performance of a mass production vehicle cross car beam (CCB) under an overlap frontal crash scenario (crashworthiness). Simulation results were reviewed according to what is plausible to register regarding some critical points displacements and, moreover, to identify its stress concentrations zones. Furthermore, it was also computed the CCB modal analysis (noise, vibration and harshness (NVH) assessment) in order to examine if its natural modes are within with the original equipment manufa

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35

Grujicic, M., G. Arakere, V. Sellappan, J. C. Ziegert, F. Y. Koçer, and D. Schmueser. "Multi-Disciplinary Design Optimization of a Composite Car Door for Structural Performance, NVH, Crashworthiness, Durability and Manufacturability." Multidiscipline Modeling in Materials and Structures 5, no. 1 (2009): 1–28. http://dx.doi.org/10.1163/157361109787138760.

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Grujicic, M., G. Arakere, V. Sellappan, J. C. Ziegert, and D. Schmueser. "Multi‐Disciplinary Design Optimization of a Composite Car Door for Structural Performance, NVH, Crashworthiness, Durability and Manufacturability." Multidiscipline Modeling in Materials and Structures 5, no. 1 (2009): 1–28. http://dx.doi.org/10.1108/15736105200900001.

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37

Xu, Jin Li, Lei Lu, Xing Sheng Cao, and Bo Wei. "Research on Automobile Coupled Vibration between Transmission Shaft and Drive Axle Gears." Advanced Materials Research 915-916 (April 2014): 76–81. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.76.

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Coupled vibration between transmission shaft and drive axle gears is one of the main factors influencing NVH in the FR transmission system. Based on the transmission shaft and drive axle gears, using UG to establish three-dimensional model, establishing flexible-body dynamics model and solving coupling vibration laws of transmission shaft and drive axle gears by ADAMS, and analyzing influencing factors on coupled vibration between transmission shaft and drive axle gears.It is of theoretic significance, for design parameters and installation matching between transmission shaft and drive axle ge

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Cornish, R. H., M. Srai, P. Cowen, M. Welch, and Mike Daniels. "Mechanical Design Analysis and Test in Support of the Market Introduction of a New Vehicle." Applied Mechanics and Materials 1-2 (September 2004): 37–44. http://dx.doi.org/10.4028/www.scientific.net/amm.1-2.37.

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This paper reports results from a stress, acoustics and vibration investigation of the ride and driveline components of a new 2-seater sports car. The work was aimed at giving design assurance information to designers and vehicle engineers working to compressed timescales. The paper focuses on two particular areas: design of the power train for NVH refinement, and design analysis of a suspension wishbone. In the first case, a dynamic model of drive shaft torsion effects was created to understand design relationships needed for high power, high torque performance car. In the second case, an inv

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Yu, Li Li, Zhen Hua Su, Jing Zhan Lin, Yu Sen Yuan, Chun Xiang Cui, and Ling Yu. "Effect of Multi-Material Substitutions on Static and Dynamic Properties of Electric Vehicles." Advanced Materials Research 535-537 (June 2012): 1402–7. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1402.

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Automotive weight reduction is a challenging task due to many performance targets that must be satisfied simultaneously, in particular in terms of static and dynamic properties direct relating to strength, stiffness and NVH characteristics of vehicles. Compared to all-steel vehicle frame, multi-material substitutions are adopted in each structural component for higher product performance and a lightweight electric vehicle frame in this paper. The SHELL63 element is selected to construct finite element (FE) model of vehicle frame based on the FEA software ANSYS. Under full bending loading and t

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Senthil Kumar, M., C. D. Naiju, S. J. Chethan Kumar, and Joseph Kurian. "Vibration Analysis and Improvement of a Vehicle Chassis Structure." Applied Mechanics and Materials 372 (August 2013): 528–32. http://dx.doi.org/10.4028/www.scientific.net/amm.372.528.

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Product development cycle time is very important in automotive industry which is very competitive nowerdays. New products are introduced into the market with better designs in short period of time by carrying out different engineering analysis. This study is focused on analyzing the existing chassis design and the noise, vibration and harshness(NVH) characteristics are studied. Modeling of chassis structure is carried out using 3D modelling package CATIA V5 and finite element model is created by meshing using Hypermesh software. The main objective is to find the natural frequency and analyse t

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41

GOMEZ-LEVI, GIANNA, EVERETT KUO, and NANXIN WANG. "STATISTICAL MODEL FOR VEHICLE BODY-IN-PRIME STATIC STIFFNESS TARGET SETTING." International Journal of Reliability, Quality and Safety Engineering 09, no. 04 (2002): 393–402. http://dx.doi.org/10.1142/s0218539302000925.

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The vehicle body-in-prime static stiffness can significantly affect vehicle NVH, ride and handling, and durability performance. Stiffness target setting is a crucial step in a vehicle design and development process. Traditionally, benchmarking data and CAE models are used to help identify and set the target, yet they have proven to be time consuming and very subjective. On the other hand, statistical models obtained through data mining or meta-modeling have been tested and applied to various problems, including design optimization. In the present paper, we attempt to utilize this technology fo

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KIM, SE-HO, and KEE-POONG KIM. "COMPUTATIONAL PERFORMANCE EVALUATION OF A SIDE STRUCTURE CONSIDERING STAMPING EFFECTS." International Journal of Modern Physics B 22, no. 31n32 (2008): 5609–14. http://dx.doi.org/10.1142/s0217979208050899.

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In this paper, the influence of the stamping effect is investigated in the performance analysis of a side structure. The analysis covers the performance evaluation such as crashworthiness and NVH. Stamping analyses are carried out for a center pillar, and then, numerical simulations are carried out in order to identify the stamping effect on the crashworthiness and the natural frequency. The result shows that the analysis considering the forming history leads to a different result from that without considering the stamping effect, which demonstrates that the design of auto-body should be carri

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Mayer, Dirk, Thilo Bein, Hendrik Buff, Benedict Götz, Oliver Schwarzhaupt, and Dominik Spancken. "Enhanced lightweight design by composites – Results of the EU project ENLIGHT." Journal of Reinforced Plastics and Composites 37, no. 19 (2018): 1217–24. http://dx.doi.org/10.1177/0731684418762321.

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Over recent decades, cars have become larger and heavier with every new generation. The main drivers of such a weight increase have been the improved safety and comfort requirements. Decades of R&D investments to tackle this tendency have resulted in a substantial increase in the weight-specific performance of components and assemblies in terms of cost, strength and stiffness. However, the need for weight reduction in future electric vehicles, without unduly compromising performance and safety, is even stronger since additional weight translates into either reduced driving range or in larg

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Noorazizi, M. S., B. A. Aminudin, and H. Faraziah. "Technique for Hanger Location of Vehicle Exhaust System Using Finite Element Method." Applied Mechanics and Materials 663 (October 2014): 485–89. http://dx.doi.org/10.4028/www.scientific.net/amm.663.485.

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A simulation technique using a finite element method (FEM) model for predicting, reducing and optimizing vibrations of the exhaust system was developed in this paper. This paper postulates the first stage in the design analysis of an exhaust system. Under excitation of the engine and road surface, the vibration energy of the exhaust system will result in the vibration of the body and produce structure noise transfers to the body from the hanger. These problems will effect or compromise noise, vibration and harshness (NVH) performance of the vehicle. A method called averaged driving DOF displac

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Yahaya Rashid, Aizzat S., Rahizar Ramli, Sallehuddin Mohamed Haris, and Anuar Alias. "Improving the Dynamic Characteristics of Body-in-White Structure Using Structural Optimization." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/190214.

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The dynamic behavior of a body-in-white (BIW) structure has significant influence on the noise, vibration, and harshness (NVH) and crashworthiness of a car. Therefore, by improving the dynamic characteristics of BIW, problems and failures associated with resonance and fatigue can be prevented. The design objectives attempt to improve the existing torsion and bending modes by using structural optimization subjected to dynamic load without compromising other factors such as mass and stiffness of the structure. The natural frequency of the design was modified by identifying and reinforcing the st

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Yung, V. Y. B., and D. J. Cole. "Wavelet analysis of high-frequency damper behaviour." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219, no. 8 (2005): 977–88. http://dx.doi.org/10.1243/095440705x11248.

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This paper describes research into the performance of a hydraulic automotive damper at frequencies up to 500 Hz. A review of published literature found little information on damper behaviour above 30 Hz. Design of vehicles for low levels of noise, vibration, and harshness (NVH) requires attention to these higher frequencies. The high-frequency force-velocity behaviour of a monotube damper was measured. Excitations included two-frequency inputs and a random input. In addition to traditional data analysis methods, techniques based on the wavelet transform were used. The results indicate that fri

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Liu, Cheng Wu. "Modal Hammering Test and Sensitivity Analysis for BIW Vehicle." Applied Mechanics and Materials 599-601 (August 2014): 985–91. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.985.

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Aiming at the defects of classical modal parameter estimation approach, the impulse hammer modal test during body-in-white (BIW) stage was done through polyMAX method method. Based on modal analysis theory, an experimental model of BIW was established. The compositions of the experimental modal testing system, the design of testing scheme as well as its validation were described in detail in this paper. The collected data were identified via the polyMAX modal analysis method. The dynamic characteristics of BIW were confirmed by Modal Assurance Criterion. Influence of low frequency distribution

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Seo, Joon Ho, Jin Yong Kim, Seung Uk Park, Hyun Chul Kim, Byung Chul Na, and Dae Soon Lim. "Tribological Characteristics of Surface Treatment for Piston Pin." Advanced Materials Research 79-82 (August 2009): 2199–202. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.2199.

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The piston pin contact in a typical automotive engine is an example of a highly loaded. Therefore, for piston pin design several aspects are important. Among them are function, cost, NVH, fuel economy, durability, and impact on other design aspects of the engine. Continuously contacting with piston pin, the face of connecting rod, brings about abnormal wear such as unfairwear or earlywear. because the engine get more powered and one requirement for a good fuel economy is to achieve a low level of mechanical friction. In this study, modern low friction coatings and treatment at the piston pin i

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Yang, Chao-Feng, Zhi-Hong Yin, Wen-Bin Shangguan, and Xiao-Cheng Duan. "A Study on the Dynamic Performance for Hydraulically Damped Rubber Bushings with Multiple Inertia Tracks and Orifices: Parameter Identification and Modeling." Shock and Vibration 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/3695950.

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Hydraulically damped rubber bushings (HDBs) are important for vehicle noise, vibration, and harshness (NVH) performance as they are able to decay the vehicle’s oscillation induced by engine and road. The dynamic stiffness and loss angle of an HDB are crucial and it is significant to investigate the relations between the design parameters with the dynamic stiffness and loss angle. Therefore, the force-deflection relation of the HDB is measured statically and the dynamic stiffness and loss angle are measured dynamically and the test data are analyzed with a view to examine how the measurement re

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Azaripour, S., and A. Masoumi. "A New Conceptual Modelling Method for Vehicle Subframe to Evaluate Dynamic Performance of Structures at Conceptual Design Stage." International Journal of Automotive and Mechanical Engineering 16, no. 4 (2019): 7498–511. http://dx.doi.org/10.15282/ijame.16.4.2019.20.0554.

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In recent years, the reduction of noise and vibrations caused by the road or internal components of vehicles have been a significant factor in the satisfaction and comfort of the occupants of cars. Therefore, to minimize these vibrations, the dynamic behaviour of the components of the vehicle should be considered in detail to reduce their level by setting useful parameters on structures. Nowadays, the conceptual model method can be regarded as a suitable alternative to the fundamental sophisticated computational techniques in measuring the vibration of vehicle components. Accordingly, the adva

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