Truck cabs improvement at the design stage with the purpose to ensure passive safety requirements in case of impact and minimum weight
Abstract
Introduction. Problems and issues related to ensuring passive safety requirements for truck cabs are still to be solved. The problem is actual as no ideas of rational approaches to improving truck cabs design and minimizing their weight have been given by modern technologies so far.
The purpose of the study was to improve the truck cabs and their elements parameters at their design stage basing on their topological and parametric optimizations to meet the requirements of international and national rules of passive safety and minimum weight.
Methodology and research methods. Strength calculations were carried out by means of the finite element method. For optimization calculations, LS-TaSC and LS-OPT software packages were used with the LS-DYNA solver, which was best suited for solving fast-flowing, non-linear, percussion problems. Two types of models were compared: basic and high-precision ones.
Scientific novelty and results. The optimization results analyzed have shown that the combined use of linings and filler was the best to improve the KAMAZ cab. A comparative assessment of the structural elements behavior of the cabin initial and proposed variants basing on high-precision models was made. The calculation results of high-precision models and mid-level models were compared and analyzed which showed that the effect of doors and glass on the stiffness of the cabin did not exceed 5%.
Practical significance. The study is theoretically significant as makes it possible to work out recommendations on changing the design of a KAMAZ truck cab to increase its passive safety.
About the Authors
R. B. Goncharov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
postgraduate
Moscow 105005
V. N. Zuzov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
D.Sc. (Eng), professor
Moscow 105005
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Review
For citations:
Goncharov R.B., Zuzov V.N. Truck cabs improvement at the design stage with the purpose to ensure passive safety requirements in case of impact and minimum weight. Trudy NAMI. 2019;(4):28-37. (In Russ.)
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