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3차원 타이어 모델 및 노면 데이터를 활용한 가상내구로 주행 시뮬레이션
강대오(Dae-Oh Kang),허승진(Seung-Jin Heo),손성효(Seong-Hyo Son),류영일(Young-Il Ryu) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Durability of automotive structures is a primary engineering consideration that is evaluated during a vehicle design and development. In addition, it is a basic expectation of consumers, who demand ever-increasing levels of quality and dependability. Automakers have developed corporate requirements for vehicle system durability which must be met before a product is delivered to the customer. To provide early predictions of vehicle durability, prior to the construction and testing of prototypes, it is necessary to predict the forces generated in the vehicle structure due to road inputs. This paper describes an application of the virtual proving ground? approach for vehicle durability load prediction for a vehicle on proving ground road surfaces. Correlation of the results of such a series of simulations will be described, and the modeling and simulation requirements to provide accurate simulations will be presented.
추성훈(Seong Hun Chu),손성효(Sung Hyo Son),류영일(Young Il Ryu),허승진(Seung Jin Heo),임홍재(Hong Jae Yim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
Accuracy of fatigue analysis highly depends on several parameters such as fatigue properties of material. load data of each loading point, mean stress, and static analysis (sometimes modal analysis or transient analysis) results. etc. Most parameters extracted from test have normal or other distribution and are usually decided from mean values of those distribution. But fatigue test result can be different due to test situation like temperature, test jig setup, and manufacturing technique of specimen etc. Therefore to get more accurate fatigue analysis results it is often peformed to test special specimen for acquisition of fatigue properties. In this paper, the effects of these variables are examined to predict fatigue life. Also, advanced method such as multi-axial fatigue analysis is discussed. Analysis based on uniaxial and biaxial calculations are compared for the Knuckle component.