scholarly journals Improvements in passenger car body for higher stability of train ferry

2020 ◽  
Vol 23 (6) ◽  
pp. 1455-1465 ◽  
Author(s):  
Oleksij Fomin ◽  
Alyona Lovska
Keyword(s):  
Passenger Car ◽  
Car Body

On Fatigue Testing of Passenger Car Body Construction

1971 ◽  
Author(s):  
Keiji Kobayashi ◽  
Keiji Yamaguchi ◽  
Takayuki Ikejiri
Keyword(s):  
Fatigue Testing ◽  
Passenger Car ◽  
Car Body ◽  
Body Construction

SIMULATION OF LOADING OF THE BODY OF A DOUBLE-STOREY PASSENGER CAR IN A FOCAL FIRE WITH SPECIFIED CHARACTERISTICS

2020 ◽  
Author(s):  
Dmitriy Antipin ◽  
Mihail Bulychev ◽  
Gennadiy Petrov
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Carrying Capacity ◽  
Thermal Loading ◽  
The Body ◽  
Finite Element Scheme ◽  
Passenger Car ◽  
Element Scheme ◽  
Car Body ◽  
Element Method

A simplified method has been developed for assessing the loading of the load-bearing systems of passenger cars under thermal loading with a fire spot with limited properties. A system of simplifications for realizing a combustion spot is substantiated. A method for its implementation is proposed. The description of the object of research is given with the necessary thoroughness of presentation. A finite element scheme has been developed and adapted, taking into account the application of thermal loads in the system of an industrial software complex that implements the finite element method. Verification of the finite element scheme was carried out taking into account full-scale normative experiments. A conclusion is made about the possibility of the applicability of the finite element scheme for the study. Numerical experiments have been carried out to assess the carrying capacity of the body of a double-deck passenger car when it is exposed to a combustion center with known thermal parameters. The experiments were built and performed in a finite element method system. The results of simulations in the affected zone of the alleged fire were obtained for the conditional spot of its location. Comparison of the results with the static loading mode of the car body is considered. The analysis of the results obtained is carried out. A conclusion is given on the effect of a small localization fire on the carrying capacity of the car body. The proposed method is evaluated taking into account the possibility of further use

JUSTIFICATION OF TECHNIQUE FOR COMFORT AND SAFETY ANALYSIS AT PASSENGER TRANSPORTATION ON VIBRATION LOAD DECREASE OF PASSENGER CAR BODY

2021 ◽  
Vol 2021 (2) ◽  
pp. 44-50
Author(s):  
Dmitriy Antipin ◽  
Elena Lukashova ◽  
Pavel Zhirov
Keyword(s):  
Finite Element ◽  
Metal Structure ◽  
Comfort Level ◽  
Passenger Car ◽  
Body Vibration ◽  
Passenger Comfort ◽  
Vibration Load ◽  
Car Body ◽  
Passenger Transportation ◽  
The Impact

The purpose of the work is to increase comfort and safety of railway passenger transportation, at the expense of passenger car body vibration load decrease. The analysis of the investigations carried out and dedicated to the definition of rigidity property impact upon the level of passenger comfort and traffic safety has shown that the first mode of vertical bending impacts considerably upon car body dynamic behavior. The analysis of vibration load impact upon passenger car body was carried out in accordance with Dumitriu’s technique. As apposed to the investigations carried out earlier in the paper the data on car metal structure acceleration are obtained through the methods of mathematical modeling based on solid and finite element models. On the basis of the data obtained and natural running tests there was created and verified a particularized lamellar finite-element model of a car body with the aid of which there were obtained values of vertical and horizontal accelerations of a car body metal structure. The analysis of the results obtained has shown that within the frequency range of 8.9. – 20 Hz there are observed acceleration surges which are among the most sensitive ones in terms of the impact upon man and transport comfort support. At the frequencies obtained there was carried out a passenger comfort investigation with the aid of which it was defined that at the frequency of car body own bending oscillations of 8.9 Hz – a comfort index is above 4 units that shows a low comfort level. A frequency of 8.9 Hz corresponds to a vertical bending mode which is the most significant mode of car body deformation in terms of passenger comfort support. With regard to this in the works there was offered a number of efficient measures for strengthening car body structure bearing capacity with the goal of its bending rigidity increase which provides an installation of a supplementary bearing partition in the mid-section of a car body, and also the introduction of auxiliary longitudinal elements in a frame supporting design. For the effectiveness assessment of measures offered there was carried out re-investigation according to the technique described. As a result of the computation it was defined that the design measures offered allowed increasing a frequency value of own bending vibration of car body metal structure up to 11.7 Hz. The analysis of the results obtained allowed drawing a conclusion of the effectiveness of design solutions offered on car body vibration load decrease.

Torsion Dynamic Load Analysis of Passenger Car Body

1985 ◽  
Author(s):  
D. Simic ◽  
L. J. Jelic ◽  
M. Aksic
Keyword(s):  
Dynamic Load ◽  
Passenger Car ◽  
Car Body ◽  
Load Analysis

scholarly journals A NEW FASTENER TO ENSURE THE RELIABILITY OF A PASSENGER CAR BODY ON A TRAIN FERRY

2020 ◽  
Vol 60 (6) ◽  
Author(s):  
Alyona Lovska ◽  
Oleksij Fomin
Keyword(s):  
Dynamic Loading ◽  
Operational Efficiency ◽  
The Body ◽  
Body Structure ◽  
Passenger Car ◽  
Equivalent Stresses ◽  
Hydraulic Damper ◽  
Car Body ◽  
Sea Transportation

To ensure the strength of the passenger car bodies during transportation on train ferries, it is proposed to mount fastening elements of chain binders on the body bolster beams. The principle of such an element is based on the hydraulic damper operation. The mathematic modelling was conducted in order to determine the dynamic loading on a passenger car body during sea transportation. The study established that the improvements mentioned made it possible to reduce the dynamic loading on the body during sea transportation by 30% in a comparison with that of a typical fastening scheme. The strength of an improved passenger car body was calculated. The maximum equivalent stresses in the body structure accounted for about 120MPa, i.e., they did not exceed the admissible values. The conducted research may contribute to ensuring the required strength of passenger car bodies during train ferry transportation, thus leading to a higher operational efficiency of train ferry transportation within the international transportation.

scholarly journals FATIGUE LIFE PREDICTION OF BEARING STRUCTURE OF PASSENGER CAR BODY WITH PERFORATED SUPPORTING ELEMENTS

2019 ◽  
Vol 2019 (7) ◽  
pp. 59-65
Author(s):  
Дмитрий Антипин ◽  
Dmitriy Antipin ◽  
Светлана Ашуркова ◽  
Svetlana Ashurkova
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
The Body ◽  
Fatigue Life Prediction ◽  
Life Assessment ◽  
Design Strength ◽  
Passenger Car ◽  
Car Body ◽  
Fatigue Life Assessment ◽  
Bearing Structure

The purpose of the work is a fatigue life assessment for bearing structures of passenger car bodies with perforated supporting elements through the methods of computer mathematical modeling. The fulfilled analysis of investigations in the field of the fatigue life assessment for welded bearing structures of car bodies has shown that its assessment should be carried out in a dynamic setting with the development of a spatial dynamic model of a car body. The fatigue life assessment in the most loaded areas of perforated supporting elements in car bodies was carried out with the use of two procedures: Serensen-Kogaev procedure and Bolotin one. There are considered ten versions of supporting element perforation in a passenger car body. The development of finite element models of car bodies with the mentioned options is carried out by the example of the body of a domestic passenger car. On the basis of the design strength computation results there are defined three most loaded areas of perforated supporting elements. The refined assessment of a dynamic stressed state of the areas under investigations is carried out through the method of an area successive accentuation. As a result of the investigation there are obtained life values of the most loaded areas for a passenger car body bearing structure for all perforation options under consideration. The results obtained confirm passenger car operation safety with the offered option of perforation and are evidence of the purposefulness in the application of the procedure offered for the fatigue life prediction of similar bearing structures.

scholarly journals Load Path U* Analysis in Passenger Car Body Structures and Load Transfer Balance in Structural Components

2012 ◽  
Vol 78 (794) ◽  
pp. 1462-1472
Author(s):  
Yasuyuki KUMAZAWA ◽  
Satoru KUWAHARA ◽  
Masaki OMIYA ◽  
Kunihiro TAKAHASHI
Keyword(s):  
Load Transfer ◽  
Structural Components ◽  
Load Path ◽  
Passenger Car ◽  
Car Body

scholarly journals Use of CAx systems in the design of the construction and technological process of innovative car body parts

Mechanik ◽  
2018 ◽  
Vol 91 (1) ◽  
pp. 39-41
Author(s):  
Ireneusz Wróbel
Keyword(s):  
Technological Process ◽  
Hot Stamping ◽  
Fem Analysis ◽  
Strength Analysis ◽  
Body Parts ◽  
Passenger Car ◽  
Car Body ◽  
Stamping Process

Presented is the process of designing the construction and technological process of the passenger car door beam. The FEM beam strength analysis and FEM analysis of the hot stamping process of this beam were presented. The simulations were discussed. Conclusions and recommendations were made.

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