Impact analysis of bumper beam to be proposed for Indian passenger cars

The number of large scale condominium construction projects had dramatically increased in Bangkok. Many projects had occurred in either densely populated areas or in central business districts, where traffic conditions were usually highly congested. To prevent traffic problems, a traffic impact study must be prepared and submitted for review by concerned public authorities. Unit trip generation rates were important data in traffic impact analysis. Without accurate unit trip generation rates, public agencies could not obtain accurate information on the traffic that will be generated. This study aimed to study trip rates and the factors affecting them for condominium construction project in Bangkok. The data were collected from 30 condominium construction sites located in 15 districts of Bangkok. The analysis used the linear regression method and was divided into three cases: 1) trip rates for all vehicles, 2) trip rates for classified vehicles, and 3) trip rates for all types of condominium. All case analyses considered weekdays, Saturday, and Sunday. The results found that trip rates related to the number of dwellings in the condominium. The trip rates for all vehicle types on weekdays, Saturday, and Sunday were 10.636, 4.647, and 9.294 vehicles per 100 dwelling units per day respectively. The trip rates for six-wheeled and ten-wheeled trucks on weekdays, Saturday, and Sunday were 2.046, 0.975, and 0.575 vehicles per 100 dwelling units per day respectively. The trip rate for four-wheeled trucks and passenger cars on weekdays was 1.960. Regarding condominium types, the trip rate for low rise condominiums for all vehicle types on weekdays was 5.315 while the trip rates for high rise condominiums for weekdays, Saturday, and Sunday were 3.965, 2.667, and 1.261 respectively.

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Development of the composite bumper beam for passenger cars

Composite Structures ◽

10.1016/0263-8223(95)00078-x ◽

1995 ◽

Vol 32 (1-4) ◽

pp. 491-499 ◽

Cited By ~ 47

Author(s):

Seong Sik Cheon ◽

Jin Ho Choi ◽

Dai Gil Lee

Keyword(s):

Passenger Cars ◽

Bumper Beam

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TRIP RATES FOR CONDOMINIUM CONSTRUCTION PROJECT

Journal of Urban and Environmental Engineering ◽

10.4090/juee.2015.v9n1.73-81 ◽

2015 ◽

Vol 9 (1) ◽

pp. 73-81

Author(s):

Wirach Hirun

Keyword(s):

Construction Projects ◽

Large Scale ◽

Impact Analysis ◽

Construction Project ◽

Accurate Information ◽

Linear Regression Method ◽

Trip Generation ◽

Passenger Cars ◽

Factors Affecting ◽

Traffic Impact

The number of large scale condominium construction projects had dramatically increased in Bangkok. Many projects had occurred in either densely populated areas or in central business districts, where traffic conditions were usually highly congested. To prevent traffic problems, a traffic impact study must be prepared and submitted for review by concerned public authorities. Unit trip generation rates were important data in traffic impact analysis. Without accurate unit trip generation rates, public agencies could not obtain accurate information on the traffic that will be generated. This study aimed to study trip rates and the factors affecting them for condominium construction project in Bangkok. The data were collected from 30 condominium construction sites located in 15 districts of Bangkok. The analysis used the linear regression method and was divided into three cases: 1) trip rates for all vehicles, 2) trip rates for classified vehicles, and 3) trip rates for all types of condominium. All case analyses considered weekdays, Saturday, and Sunday. The results found that trip rates related to the number of dwellings in the condominium. The trip rates for all vehicle types on weekdays, Saturday, and Sunday were 10.636, 4.647, and 9.294 vehicles per 100 dwelling units per day respectively. The trip rates for six-wheeled and ten-wheeled trucks on weekdays, Saturday, and Sunday were 2.046, 0.975, and 0.575 vehicles per 100 dwelling units per day respectively. The trip rate for four-wheeled trucks and passenger cars on weekdays was 1.960. Regarding condominium types, the trip rate for low rise condominiums for all vehicle types on weekdays was 5.315 while the trip rates for high rise condominiums for weekdays, Saturday, and Sunday were 3.965, 2.667, and 1.261 respectively.

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DESIGN IMPROVEMENT IN FRONT BUMPER OF A PASSENGER CAR USING IMPACT ANALYSIS”-A REVIEW

International Journal of Instrumentation Control and Automation ◽

10.47893/ijica.2011.1039 ◽

2011 ◽

pp. 216-220

Author(s):

NITIN S MOTGI ◽

P.R. KULKARNI ◽

SHEELRATAN S BANSODE

Keyword(s):

Impact Analysis ◽

Passenger Cars ◽

Passenger Car ◽

Design Improvement ◽

Car Accidents ◽

Bumper System

Car accidents are happening every day. We must take into account the statistics – ten thousand dead and hundreds of thousands to million wounded each year. These numbers call for the necessity to improve the safety of automobiles during accidents. Automotive bumper system is one of the key systems in passenger cars which helps to protect the vehicle during impacts. The following paper deals with the design improvements in the front bumper of passenger cars in India, using impact analysis. The modification will be made considering size, shape and material.

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IMPLEMENTATION OF CIRCULAR DISCONTINUITIES IN CFRP BUMPER BEAM FOR MATERIAL SAVING: A CASE STUDY

International Journal of Advanced Research ◽

10.21474/ijar01/13032 ◽

2021 ◽

Vol 9 (06) ◽

pp. 435-447

Author(s):

Aravind Babu ◽

◽

S. Jayakumar ◽

Keyword(s):

High Speed ◽

High Performance ◽

Passenger Cars ◽

Element Analysis ◽

Bumper Beam ◽

Reinforced Plastic ◽

Circular Holes ◽

Carbon Fibre Reinforced Plastic ◽

Main Component ◽

Material Saving

An automotive bumper system consists of an energy absorber, fascia and bumper beam. Among them, the bumper beam is the main component contributing to the overall weight of the vehicle. The bumper beam absorbs the kinetic energy during an accidental collision by deflection in low speed impact and by deformation in high speed impact. Carbon Fibre Reinforced Plastic (CFRP), being an extremely strong and lightweight composite, is a good candidate for bumper beam material. Earlier used in high performance cars CFRP is nowadays being promoted to be used in passenger cars also. The reinforcement beam is the vital part which ensures safety and needs to be validated through Finite Element Analysis (FEA). Therefore, the double hat bumper beam is impacted with a cylindrical impactor and analyzed in Abaqus. In this paper the bumper beam is analyzed after weight reduction by putting circular holes for material saving. Further the effect on cost of production is calculated. Above all, material saving reduces carbon footprint.

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Design and Impact Analysis of Automotive Bumper Beam Using Aluminum Foam

Journal of the Korea Academia-Industrial cooperation Society ◽

10.5762/kais.2011.12.4.1552 ◽

2011 ◽

Vol 12 (4) ◽

pp. 1552-1558 ◽

Cited By ~ 1

Author(s):

Seung-Ok Bang ◽

Sei-Hwan Kim ◽

Jae-Ung Cho

Keyword(s):

Aluminum Foam ◽

Impact Analysis ◽

Bumper Beam

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Application of impact analysis SDC method for verification of whiplash injuries

MATEC Web of Conferences ◽

10.1051/matecconf/201930201001 ◽

2019 ◽

Vol 302 ◽

pp. 01001

Author(s):

Piotr Aleksandrowicz

Keyword(s):

Impact Analysis ◽

Whiplash Injuries ◽

Passenger Cars ◽

Low Speeds ◽

Damage Claim

Collisions of vehicles that occur in cities involve relatively low speeds. Even though the speed of a collision is not high passengers are exposed to a risk of neck spine damage when a rear-end accident takes place. These injures are referred to as Whiplash injuries which are difficult to verify when it is necessary to resolve a rear-end collision damage claim. This study presents procedures of SDC method to be used for verification of circumstances that are reported to have caused such injuries. An analysis was carried out based on a case study of a collision of two passenger cars of different categories and the results can be used by theoreticians and practitioners who are involved in research on this subject.

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Linking Spectrograph to Mechanical and Physical Properties of X7475 Experimental Alloys Produced from Recycling Beverage Cans for Bumper Beam Applications

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1010.52 ◽

2020 ◽

Vol 1010 ◽

pp. 52-57

Author(s):

Abubakar Kazeem ◽

Nur Azam Badarulzaman ◽

Wan Fahmin Faiz Wan Ali

Keyword(s):

Mechanical Properties ◽

Automobile Industry ◽

Natural Aging ◽

Physical And Mechanical Properties ◽

Stir Casting ◽

Passenger Cars ◽

Bumper Beam ◽

Mechanical And Physical Properties ◽

New Material ◽

7Xxx Alloy

The automobile industry intends to consume more aluminium alloys in an effort to reduce the greenhouse emissions through the cut in the weight of the passenger cars. Experimental X7475 aluminium alloy is a good candidate to achieve this mission. Past efforts targeted at exploring the aluminium for bumper beam applications and even the recovery of aluminium from recycled beverage can (RBC) were not with the aim of upgrading the 3xxx to a novel 7xxx alloy. The wt. % of Zn was 5.0, 4.5 and 4.0, while Mg was left at 1.50, 1.25 and 1.00 wt. % with Mn at a peak of 0.075, 0.050 average and a least wt. % of 0.025. Alloys were homogenized and taken through annealing (O), natural aging (T4) and artificial aging (T6). The effect of hardening phases such as MgZn2 (ICDD 034-0457) due to heat treatments on the physical and mechanical properties of the new X7475 alloys was investigated. Formation of precipitates affected the density and hardness of the alloys produced via stir casting route. A least hardness of 63.40 Hv was observed in alloy H with a density of 2.7264 g/cm3 while the maximum of 113.06 Hv was recorded against alloy C in as-cast (AC). The result has contributed to the database of experimental alloys with the possibilities of producing a new material from RBCs for bumper beam applications. Future investigation should employ design of experiment (DOE) in optimization of the heat treatment for better mechanical properties.

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