Measuring complex of deformation of a bus body frame elements in operating conditions

This paper selects a certain type of Golden Dragon bus body structure as the research object, by using ANSYS parametric modeling, and achieve optimization process through the ISIGHT software integration ANSYS. Choose the body frame minimum total quality as optimal objective; the average stress level is introduced to the objective function when the body frame is under the bending and twisting joint working conditions. According to the bus operating conditions, restrictions including strength, stiffness, and frequency of the body frame are put forward .NSGA-II algorithm is employed to optimize the design. The results showed that: 8.08% total mass reduction of Bus Body Structure. The NSGA-II method combined with finite element method this article uses has a certain reference value on the similar structure optimization design.

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DEMAND THAT GO IN ON THE FOLLOWING VEHICLE BODY OF THE BODIES OF THE HUMAN TRANSPORT PID PED HOUR EXPLOATATION

The National Transport University Bulletin ◽

10.33744/2308-6645-2021-1-48-293-301 ◽

2021 ◽

Vol 1 (48) ◽

pp. 293-301

Author(s):

Ruban D ◽

◽

Kraynyk L ◽

Grischuk A ◽

◽

...

Keyword(s):

Corrosion Protection ◽

Public Transport ◽

Operating Conditions ◽

The Body ◽

Vehicle Body ◽

Winter Period ◽

Material Base ◽

Body Frame ◽

Motor Transport ◽

Bus Body

The article considers the operating conditions that affect the durability of the bus body and proposes measures to increase the durability of public transport bus bodies during operation. The object of study - conditions and measures that affect the durability of public transport bus bodies during operation. Objective - development of recommendations for increasing the durability of bus bodies during operation. Research Methods - analytical. The analysis of factors in the fuel for the car bodywork in the bus transport in the first hour of operation was carried out. It has been established that the car body must be replaced with a bus, so that it's possible to use it and it's possible to immediately renew the anti-corrosion protection. Normal minds are presented: a bus route on roads I - III categories, transportation of passengers at roads, I don't change, technically permissible value, I don't overrun roads at a distance of 50 km / year. I'll show you how to look at the material base of motor transport enterprises, 95% of motor transport companies in Ukraine don't have any notice for a winter bus. In addition, during the winter period, you need to thoroughly think and understand that there is a bus and a bus that is due to obstructions and icy roads. Technology has been scattered, and the anti-corrosion grease has been closed by a worn empty bus body frame. As a result, the robots have been installed, which is effective for the effective anti-corrosion protection of the body elements of the body frame, which is necessary and certified. In addition, during the winter period, you need to thoroughly think and understand that there is a bus and a bus that is due to obstructions and icy roads. Technology has been scattered, and the anti-corrosion grease has been closed by a worn empty bus body frame. As a result, the robots have been installed, which is effective for the effective anti-corrosion protection of the body elements of the body frame, which is necessary and certified. KEY WORDS: BUS, NORMAL OPERATING CONDITIONS, CORROSION PROTECTION, DURABILITY.

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Forecasting the durability of public transport bus bodies depending on operating conditions

Eastern-European Journal of Enterprise Technologies ◽

10.15587/1729-4061.2021.238171 ◽

2021 ◽

Vol 4 (1(112)) ◽

pp. 26-33

Author(s):

Dmytro Ruban ◽

Lubomir Kraynyk ◽

Hanna Ruban ◽

Andrii Sosyk ◽

Andriy Shcherbyna ◽

...

Keyword(s):

Public Transport ◽

Operating Conditions ◽

The Body ◽

Body Frame ◽

Operational Conditions ◽

Term Operation ◽

Study Results ◽

Depth Study ◽

Bus Body

This paper addresses the issue related to forecasting the durability indicators of public transport buses under operational conditions. It has been established that when buses are operated to transport passengers the bus bodies wear at different intensities. During operation, the strength of the body frame weakens under the influence of corrosion in combination with sites of fatigue destruction. As it was established, the intensity of corrosion of the bus body depends on the number of residents in the city where the bus is operated. The earlier established dependences were taken into consideration; the current study has identified two conditional variants of corrosion evolution based on the number of inhabitants: up to 1 million and exceeding 1 million. The expediency of repairs and their impact on the bus passive safety has been analyzed. It was found that the elements of the body frame, without external characteristic damage, no longer meet the specified conditions of strength as a result of sign-alternating loads and during long-term operation. Determining the durability of the bus body was made possible through the construction of a mathematical model. The model’s adequacy was confirmed by road tests of the bus. The devised model describes the movement of the bus over a road surface with different micro profiles, with different corrosion penetration, different loading by passengers, and bus speeds. It was established that the reason for the evolution of structural corrosion is the influence of salt mixtures preventing the icing of roads, as well as ignoring the washing of buses after such trips. It is recommended to use new software for the in-depth study into this issue addressing the combination of various factors of destruction: cyclic loads at variable bus speeds and the corrosion progress. The study results could make it possible to predict a life cycle of the body frame under factors that correspond to actual operating conditions.

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Electric Bus Body Lightweight Design Based on Multiple Constrains

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.3137 ◽

2012 ◽

Vol 538-541 ◽

pp. 3137-3144 ◽

Cited By ~ 1

Author(s):

Wen Wei Wang ◽

Cheng Jun Zhou ◽

Cheng Lin ◽

Jiao Yang Chen

Keyword(s):

Finite Element ◽

Lightweight Design ◽

Element Model ◽

The Body ◽

Body Frame ◽

Electric Bus ◽

Free Model ◽

Bus Body ◽

The Finite Element Model ◽

Torsion Condition

The finite-element model of pure electric bus has been built and the free model analysis, displacement and stress analysis under bending condition and torsion condition have been conducted. Optimally design the pure electric bus frame based on multiple constrains. Reduce the body frame quality by 4.3% and meanwhile meet the modal and stress requirements.

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Modal Analysis on Bus Body Frame Based on I-DEAS Software

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.182-183.865 ◽

2012 ◽

Vol 182-183 ◽

pp. 865-868

Author(s):

Yuan Hua Chen

Keyword(s):

Modal Analysis ◽

Theoretical Basis ◽

Natural Frequencies ◽

Body Frame ◽

Bus Body

The author sets up the FEA modal of a bus body using the I-DEAS software and applies load.After solution,the athor gets the frame’s former ten natural frequencies and their corresponding vibration shapes.This can supply the important theoretical basis in analysis and calculation and in improving the design of the bus body.

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Static Strength Analysis on Bus Body Frame Based on I-DEAS Software

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.263-266.2043 ◽

2012 ◽

Vol 263-266 ◽

pp. 2043-2046

Author(s):

Yuan Hua Chen ◽

Guo Fu Wang

Keyword(s):

Maximum Stress ◽

Element Model ◽

Strength Analysis ◽

Body Frame ◽

Maximum Displacement ◽

Static State ◽

Bus Body ◽

Strength And Stiffness ◽

Reliable Basis

On the basis of the established finite element model, the strength and stiffness of structure of bus body frame were analyzed under working conditions of bending and twisting in static state. The nodes of maximum stress and maximum displacement were identified, which could provide a reliable basis for follow-up lightweight structural optimization designs.

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Design and Model Analysis of City Bus Body Frame Based on ANSYS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.219-220.1389 ◽

2011 ◽

Vol 219-220 ◽

pp. 1389-1392

Author(s):

Xiao Zhong Ren ◽

Shao Jie Du ◽

Xue Sheng Pei

Keyword(s):

Surface Profile ◽

3D Models ◽

Model Analysis ◽

Body Frame ◽

3D Design ◽

Frame Model ◽

City Bus ◽

Wire Frame ◽

Finite Element Technology ◽

Bus Body

Applying the 3D design and finite element technology to the design of city bus body, the model analysis of bus body frame was carried out. On the basis of general modeling of bus body, the locus of bus body frame was constructed in light of the inner surface profile of body cover panel. The 3D models of both bus body frame and floor frame were constructed under Pro/E, and the virtual assembly of them was completed. By leading the wire frame model of bus body frame in ANSYS software, its FEA wire frame model was obtained. The natural frequency and vibration mode of bus body frame can be known by means of model analysis. It lays the foundation for the FEA of whole bus body frame.

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