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Obtaining statistical data

Projects / Programmes source: ARIS

Structural dynamics in automotive industry

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Research activity

Code Science Field Subfield
2.11.01  Engineering sciences and technologies  Mechanical design  Basic and system know-how 

Code Science Field
T210  Technological sciences  Mechanical engineering, hydraulics, vacuum technology, vibration and acoustic engineering 

Code Science Field
2.03  Engineering and Technology  Mechanical engineering 
Keywords
structural dynamics, vibrations, joints, nonlinearities, fatigue, optimisation
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (11)
no. Code Name and surname Research area Role Period No. of publications
1.  31653  MSc Jerko Bartolić  Mechanical design  Researcher  2010 - 2012  5 
2.  02034  PhD Miha Boltežar  Mechanical design  Head  2010 - 2013  1,239 
3.  19859  PhD Vitoslav Bratuš  Materials science and technology  Researcher  2013  33 
4.  25798  PhD Gregor Čepon  Mechanical design  Researcher  2010 - 2013  422 
5.  32073  PhD Martin Česnik  Mechanical design  Junior researcher  2010 - 2013  133 
6.  33891  PhD Luka Knez  Mechanics  Researcher  2011  85 
7.  34657  PhD Matjaž Mršnik  Mechanics  Researcher  2011 - 2012  44 
8.  33215  Miha Pirnat  Mechanical design  Researcher  2010 - 2011  29 
9.  23991  MSc Alen Renčelj  Mechanical design  Researcher  2011 - 2013  5 
10.  23010  PhD Janko Slavič  Mechanical design  Researcher  2010 - 2013  651 
11.  29623  PhD Jurij Žumer  Mechanical design  Junior researcher  2010 - 2012  11 
Organisations (2)
no. Code Research organisation City Registration number No. of publications
1.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  29,214 
2.  1995  CIMOS d.d. Avtomobilska industrija (Slovene)  Koper  5040302  128 
Abstract
This project is based on long-term, consistent and systematic research activities of the Laboratory for Dynamics of Machines and Structures – LADISK – in the field of structural dynamics. For the purpose of this project, most of our own (Ladisk's) scientific research results as well as state-of-the art results will be integrated into a numerical tool used for optimisation of dynamically loaded, automotive parts for our partner in this project, Cimos d.d. Cimos is a large automotive company that acts mainly as a Tier 1 supplier of some key automotive parts to companies like BMW, PSA and several others. As such, it every day faces the ever demanding needs to produce better and better products in shorter time. Moreover, in the automotive industry there are nowadays also some demanding requirements, either from the company side or from the EU side -to lower the material and energy consumption, C02 pollution and noise. This becomes even more important when there is also a production line involved in a process with several million parts being manufactured. In such cases the need to optimise the development as well as the manufacturing process of a part being developed/manufactured, is indispensable. Development engineers therefore need a modern, numerical tool, enabling them creating valid physical models to perform valid simulations of dynamic phenomena in structures while also enabling them to achieve required life of a product as well as lower the material needed, lower the noise due to vibrations of the product or just lower the overall vibration level. E.g., in the case of a compressor holder the input data from the customer (in this case it is BMW) it is usually a series of measured acceleration spectra, measured at the engine head. An engineer needs, in such a case, to make a functional design of the compressor as well as provide the compressor's required life due to vibrations the compressor will undergone. This is a highly demanding task that, in order to be successfully solved needs valid numerical tools that integrates the state-of-of-the art structural dynamics as well as special (modified) procedures from vibration fatigue. In the scope of this project, with a tight support of the development engineers from our partner (Cimos), we will develop our own numerical tools to asses the challenges mentioned. This will enable Cimos to act as a highly competitive Tier 1 supplier with quality products and an added value overall. To achieve this, our expert and existing knowledge in the field of structural dynamics will be complemented with the state-of-the art results on modelling either simple or complex parts of a structure under investigation. These can be joints, bearings or other, local and nonlinear behaviour that needs special attention in order for the model to be simple enough and valid at the same time. Moreover, a special data base environment will be developed to gather all the results and material parameters to perform innovative correlation studies between simulations and experiments and to save any other information that help in product development. Such a program (numerical tool) will enable our partner to predict life of a product under investigation and to perform several optimisation studies upon vibrations. In general, this will result in better material use, lower C02 pollution and higher added value.
Significance for science
Three major scientific contributions are: 1. Theoretical and experimental research of different frequency-domain methods counting methods 2. Structural modification for base excitation 3. Development of theory and experiment for the accelerated vibration test with concurrent identification of structural and fatigue parameters
Significance for the country
In addition to the indirect impact on the development of human resources and the development of competencies in the field of structural dynamics and vibration fatigue, the project has direct impact in the Slovenian industry with regards to the problems of vibration fatigue. Slovenian industry is therefore directly and indirectly better prepared to increase the added value of products exposed to vibrations.
Most important scientific results Annual report 2010, 2011, 2012, final report, complete report on dLib.si
Most important socioeconomically and culturally relevant results Annual report 2010, 2011, 2012, final report, complete report on dLib.si
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