长沙理工大学学报:自然科学版
長沙理工大學學報:自然科學版
장사리공대학학보:자연과학판
Journal of Changsha University of Science and Technology:Natural Science
2012年
1期
41-45
,共5页
殷新锋%刘扬%蔡春声%彭晖
慇新鋒%劉颺%蔡春聲%彭暉
은신봉%류양%채춘성%팽휘
车一桥耦合振动%桥梁模型%面接触%点接触
車一橋耦閤振動%橋樑模型%麵接觸%點接觸
차일교우합진동%교량모형%면접촉%점접촉
bridge-vehicle coupling system%bridge model%patch contact%point contact
现有分析车一桥耦合振动的研究中,都假设移动车辆与路面的接触关系为点接触.事实上,轮胎与路面是通过面接触的,通过建立新的三维车轮模型,分析了面接触对车一桥耦合振动的影响,将车轮与路面的接触面简化为长方形,通过接触面间的位移协调条件和力相互作用建立车一桥耦合振动方程,同时还研究了接触面对车一桥耦合振动的影响。
現有分析車一橋耦閤振動的研究中,都假設移動車輛與路麵的接觸關繫為點接觸.事實上,輪胎與路麵是通過麵接觸的,通過建立新的三維車輪模型,分析瞭麵接觸對車一橋耦閤振動的影響,將車輪與路麵的接觸麵簡化為長方形,通過接觸麵間的位移協調條件和力相互作用建立車一橋耦閤振動方程,同時還研究瞭接觸麵對車一橋耦閤振動的影響。
현유분석차일교우합진동적연구중,도가설이동차량여로면적접촉관계위점접촉.사실상,륜태여로면시통과면접촉적,통과건립신적삼유차륜모형,분석료면접촉대차일교우합진동적영향,장차륜여로면적접촉면간화위장방형,통과접촉면간적위이협조조건화력상호작용건립차일교우합진동방정,동시환연구료접촉면대차일교우합진동적영향。
When establishing the equations of motion of the bridge-vehicle coupling system, most researchers simplify the contact between the vehicle tire and road surface as a point contact. In reality, a vehicle tire deforms and makes contact with the road surface over a footprint area called patch contact. This paper presents a new method that allows for the effect of the patch contact on the dynamic response of the bridge-vehicle coupling system. In this method, the vehicle tilre is modeled as a three-dimensional elementary spring model, and the patch contact is assumed to be a rectangle. The numerical simulations and field test results show that the proposed method can simulate the interaction between the bridge and vehicles more rationally.