共查询到20条相似文献,搜索用时 46 毫秒
1.
THEEXISTENCEOFPERIODICSOLUTIONOFTHEFOURTHORDINARYNONLINEARDIFFERENTIALEQUATIONCAUSEDBYFLOW-INDUCEDVIBRATIONGuQing-fang(顾清芳)Ta... 相似文献
2.
THEEXISTENCEOFPERIODICSOLUTIONSFORACLASSOFFUNCTIONALDIFFERENTIALEQUATIONSANDTHEIRAPPLICATIONZhaoJie-min(赵杰民);HuangKe-lei(黄克累)... 相似文献
3.
THECALCULATIONOFEIGENVALUESFORTHESTATIONARYPERTURBATIONOFCOUETTE-POISEUILLEFLOWSongJinbao(宋金宝)ChenJianning(陈建宁)(ReceivedDec.3... 相似文献
4.
THECALCULATIONOFEIGENVALUESFORTHESTATIONARYPERTURBATIONOFCOUETTE-POlSEUILLEFLOWSongJinbao(宋金宝)ChenJianning(陈建宁)(ReceivedDec.3... 相似文献
5.
刘小湘 《应用数学和力学(英文版)》1994,(11)
THEDIFFERENTIALSOLUTIONTOTHEFLYINCLOCUSEQUATIONOFTHESHOTANDITSAPPLICATIONLiuXiao-xiang(刘小湘) (XiangtaninstituieofMachineryand... 相似文献
6.
UNCONDITIONAL STABLE SOLUTIONS OF THE EULER EQUATIONS FOR TWO-AND THREE-D WINGS IN ARBITRARY MOTION 总被引:2,自引:0,他引:2
高正红 《应用数学和力学(英文版)》1995,16(12):1209-1220
UNCONDITIONALSTABLESOLUTIONSOFTHEEULEREQUATIONSFORTWO-ANDTHREE-DWINGSINARBITRARYMOTIONGaoZhenghong(高正红)(ReceivedJan.12,1995,C... 相似文献
7.
张居铃 《应用数学和力学(英文版)》1994,(1)
ACOMPLETEEXPRESSIONOFTHEASYMPTOTICSOLUTIONOFDIFFERENTIALEQUATIONWITHAN-THORDERTURNINGPOINTZhangJu-ling(张居铃)(SichuanInstituteo... 相似文献
8.
宋光兴 《应用数学和力学(英文版)》1996,17(11):1081-1085
EXISTENCETHEOREMSOFEXTREMALSOLUTIONSFORACLASSOFNONLINEARINTEGRO-DIFFERENTIALEQUATIONSSongGuangxing(宋光兴)(ReceivedMay4,1995;Com... 相似文献
9.
张延松 《应用数学和力学(英文版)》1995,16(11):1065-1072
THEANALYTICRESOLUTIONSANDAPPLICATIONSOFTHENON-LINEARSEEPAGEFLOWEQUATIONSOFCOALINFUSIONZhangYansong(张延松)(ReceivedJan.1,1994.Co... 相似文献
10.
ANAPPLICATIONOFSCHAUDER’SFIXEDPOINTTHEOREMTOTHEEXISTENCEOFSOLUTlONSOFIMPULSIVELYDIFFERENTIALEQUATIONSDongYu-Jun(董玉君),ZouEr-xi... 相似文献
11.
周之虎 《应用数学和力学(英文版)》1994,15(3):235-246
In this paper.variable operator and its product with shifting operator are studied.The product of power series of shifting operator with variable coefficient is defined andits convergence is proved under Mikusinski’s sequence convergence.After turning ageneral variable coefficient linear difference equation of order n into a set of operatorequations.we can obtain the solutions of the general n-th order variable coefficientlinear difference equation. 相似文献
12.
THEAPPLICATIONOFTHEVARIATIONALPRINCIPLEINTHECONSTRAINEDCONTROLSYSTEMDengZi-chen(邓子辰)(NorthwesternPolytechnicalUniversityXi'an... 相似文献
13.
Yongliang ZHANG M. N. SMIRNOVA A. I. BOGDANOVA Zuojin ZHU N. N. SMIRNOV 《应用数学和力学(英文版)》2018,39(12):1769-1788
Travel time through a ring road with a total length of 80 km has been predicted by a viscoelastic traffic model(VEM), which is developed in analogous to the non-Newtonian fluid flow. The VEM expresses a traffic pressure for the unfree flow case by space headway, ensuring that the pressure can be determined by the assumption that the relevant second critical sound speed is exactly equal to the disturbance propagation speed determined by the free flow speed and the braking distance measured by the average vehicular length. The VEM assumes that the sound speed for the free flow case depends on the traffic density in some specific aspects, which ensures that it is exactly identical to the free flow speed on an empty road. To make a comparison, the open Navier-Stokes type model developed by Zhang(ZHANG, H. M. Driver memory, traffic viscosity and a viscous vehicular traffic flow model. Transp. Res. Part B, 37, 27–41(2003)) is adopted to predict the travel time through the ring road for providing the counterpart results.When the traffic free flow speed is 80 km/h, the braking distance is supposed to be 45 m,with the jam density uniquely determined by the average length of vehicles l ≈ 5.8 m. To avoid possible singular points in travel time prediction, a distinguishing period for time averaging is pre-assigned to be 7.5 minutes. It is found that the travel time increases monotonically with the initial traffic density on the ring road. Without ramp effects, for the ring road with the initial density less than the second critical density, the travel time can be simply predicted by using the equilibrium speed. However, this simpler approach is unavailable for scenarios over the second critical. 相似文献
14.
商朋见 《应用数学和力学(英文版)》1995,16(7):643-649
INCREASINGPROPERTYOFSPECTRUMINTHEVIBRATIONSOFACYCLICCHAINOFMASSESDISTRIBUTEDACCORDINGTOTHEGTMSEQUENCEShangPengjian(商朋见)(Depar... 相似文献
15.
Mikusinski’s operators solution of three-order linear difference equation with variable coefficients
Zhou Zhi-hu 《应用数学和力学(英文版)》1994,15(1):71-79
This paper proceeds the papers [3] [4], we make use of the idea of the variable number operators and some concepts and conclusions of the shifting operators series
with variable coefficients in the operational field of Mikusinski, it is devoted to the solution of the general three-order
linear difference equation with variable coefficients, and it is also devoted to the better solution formula for the some
special three-order linear difference equations with variable coefficients: in addition, we try to provide the idea and method
for realizing solution of the more than three-order linear difference equation with variable coefficients.
Project Supported by the Science Foundation of Anhui Province 相似文献
16.
MIKUSINSKI'S OPERATORS SOLUTION OF THREE-ORDER LINEAR DIFFERENCE EQUATION WITH VARIABLE COEFFICIENTS
周之虎 《应用数学和力学(英文版)》1994,(1)
MIKUSINSKI'SOPERATORSSOLUTIONOFTHREE-ORDERLINEARDIFFERENCEEQUATIONWITHVARIABLECOEFFICIENTSZhouZhi-hu(周之虎)(AnhuiArchitecturalI... 相似文献
17.
方锦暄 《应用数学和力学(英文版)》1996,(6)
(Φ,△)-TYPEPROBABILISTICCONTRACTORANDSOLUTIONSFORANONLINEAROPERATOREQUATIONSINMENGERPN-SPACES¥FangJinxuan(方锦暄)(DepartmentofMat... 相似文献
18.
贾乃文 《应用数学和力学(英文版)》1990,11(9):895-900
In this paper,spherical shell with variably nonlinear section that is widely used ineingineering and its equation of the section,δ=δ_0(1 βφ)~2)is analysed to momentalproblem.The Euler solutions of internal forces are obtained under normal pressure. 相似文献
19.
Some new fixed point theorems in probabilistic metric spaces 总被引:21,自引:0,他引:21
朱传喜 《应用数学和力学(英文版)》1995,16(2):179-185
SOMENEWFIXEDPOINTTHEOREMSINPROBABILISTICMETRICSPACESzhuChuan-xi(朱传喜)(MathematiesDivision,Nanchang.University,Nanchang)(Receiv... 相似文献
20.
Variable Order and Distributed Order Fractional Operators 总被引:1,自引:0,他引:1
Many physical processes appear to exhibit fractional order behavior thatmay vary with time or space. The continuum of order in the fractionalcalculus allows the order of the fractional operator to be considered asa variable. This paper develops the concept of variable and distributedorder fractional operators. Definitions based on the Riemann–Liouvilledefinition are introduced and the behavior of the new operators isstudied. Several time domain definitions that assign different argumentsto the order q in the Riemann–Liouville definition are introduced. Foreach of these definitions various characteristics are determined. Theseinclude: time invariance of the operator, operator initialization,physical realization, linearity, operational transforms, and memorycharacteristics of the defining kernels.A measure (m
2) for memory retentiveness of the order history isintroduced. A generalized linear argument for the order q allows theconcept of `tailored' variable order fractional operators whose m
2 memory may be chosen for a particular application. Memory retentiveness (m
2) andorder dynamic behavior are investigated and applications are shown.The concept of distributed order operators where the order of thetime based operator depends on an additional independent (spatial)variable is also forwarded. Several definitions and their Laplacetransforms are developed, analysis methods with these operators aredemonstrated, and examples shown. Finally operators of multivariable anddistributed order are defined and their various applications areoutlined. 相似文献