中国工程科学
中國工程科學
중국공정과학
ENGINEERING SCIENCE
2015年
4期
53-62
,共10页
高速列车%轮轨关系%系统动力学%载荷谱%结构优化
高速列車%輪軌關繫%繫統動力學%載荷譜%結構優化
고속열차%륜궤관계%계통동역학%재하보%결구우화
high-speed train%wheel/rail relationship%system dyanmics%load spectrum%struc-tural optimization
高速铁路运营对转向架技术提出了更高要求,为能设计出性能更优越的动车组转向架,调查了中国高速动车组的线路条件、动车组的车轮踏面磨耗情况,分析轮轨匹配关系;动力学分析中考虑了转臂节点、抗蛇行减振器、空气弹簧等部件的非线性特性,橡胶、减振器等减振元件高低温变化条件下车辆参数的变化,电机弹性悬挂方式等,在实际轮轨匹配关系基础上建立了车辆系统动力学模型。动力学系统仿真选择了最优悬挂参数,结合部件台架测试对悬挂元件进行了工程化设计;为掌握转向架服役周期内关键部件可靠性,对运用动车组转向架进行了大量的动应力测试,系统分析了中国无砟轨道条件下转向架主要承载区域载荷随车辆运营周期、不同气候条件、不同线路条件下的变化趋势,建立了中国高速列车载荷谱体系。通过结构、悬挂、传动、制动、焊接、降噪、轮轨等系统集成,形成高速列车转向架技术体系。
高速鐵路運營對轉嚮架技術提齣瞭更高要求,為能設計齣性能更優越的動車組轉嚮架,調查瞭中國高速動車組的線路條件、動車組的車輪踏麵磨耗情況,分析輪軌匹配關繫;動力學分析中攷慮瞭轉臂節點、抗蛇行減振器、空氣彈簧等部件的非線性特性,橡膠、減振器等減振元件高低溫變化條件下車輛參數的變化,電機彈性懸掛方式等,在實際輪軌匹配關繫基礎上建立瞭車輛繫統動力學模型。動力學繫統倣真選擇瞭最優懸掛參數,結閤部件檯架測試對懸掛元件進行瞭工程化設計;為掌握轉嚮架服役週期內關鍵部件可靠性,對運用動車組轉嚮架進行瞭大量的動應力測試,繫統分析瞭中國無砟軌道條件下轉嚮架主要承載區域載荷隨車輛運營週期、不同氣候條件、不同線路條件下的變化趨勢,建立瞭中國高速列車載荷譜體繫。通過結構、懸掛、傳動、製動、銲接、降譟、輪軌等繫統集成,形成高速列車轉嚮架技術體繫。
고속철로운영대전향가기술제출료경고요구,위능설계출성능경우월적동차조전향가,조사료중국고속동차조적선로조건、동차조적차륜답면마모정황,분석륜궤필배관계;동역학분석중고필료전비절점、항사행감진기、공기탄황등부건적비선성특성,상효、감진기등감진원건고저온변화조건하차량삼수적변화,전궤탄성현괘방식등,재실제륜궤필배관계기출상건립료차량계통동역학모형。동역학계통방진선택료최우현괘삼수,결합부건태가측시대현괘원건진행료공정화설계;위장악전향가복역주기내관건부건가고성,대운용동차조전향가진행료대량적동응력측시,계통분석료중국무사궤도조건하전향가주요승재구역재하수차량운영주기、불동기후조건、불동선로조건하적변화추세,건립료중국고속열차재하보체계。통과결구、현괘、전동、제동、한접、강조、륜궤등계통집성,형성고속열차전향가기술체계。
High-speed railway propose higher requirements on the bogie technology,in order to design a super performance of electric multiple unit(EMU)bogie,investigate the line condi-tion of China passenger dedicated railway,and also investigate the wheel tread wear of EMU, use actual measurement rail profile and worn profile tread analysis the matching relationship of wheel and rail. Dynamics analysis consider nonlinear characteristics of box guidance node,anti-hunting damper,air spring and other parts,and consider the parameters changes at different high and low temperature variations,also consider motor elastic suspension mode,basic on above factor,build vehicle dynamics model with actual wheel rail matching relationship,through sys-tem simulation optimal selection of suspension parameters,combined with the test stand con-struction design. In order to grasp the key parts of bogie service period reliability,take a great deal dynamic stress test,use the test data analysis maintenance vehicle operating cycle,different climatic conditions,different line conditions on the ballastless track of China,setup China high-speed train load spectrum. Through system integration of the structure design,suspension,trans-mission,brake,wheel rail noise,structure welding and so on,the high-speed train bogie technol-ogy system was founded.