最新刊期
      卷 10 ， 期 1 ， 1988

      • THE CALCULATION OF ALONGWIND RESPONSE FOR TALL BUILDINGS

        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.001
        摘要：This paper investigates the dynamic response of tall buildings subject toalongwind loading.According to the assumptions of the fundamental parame-ters,the function of the first vibration mode and that of the mass model,thecomputer program AWCTS is compiled.The availability of the procedure in thispaper is verified through practical calculations and comparison of results.  
          
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      • Wang Zhenglin, Chen Benxian
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.002
          
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      • ANALYSIS FOR VIBRATION OF ARCHES BY TRANSFER MATRIX METHOD

        Huang Dongjie
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.003
        摘要：This paper presents a transfer matrix method for analysing dynamiccharacteristics of arches.The calculation models are the broken-line rigidframes with a series of mass points,which are simplified from the criginalstructures.The geometric stiffness and the axial deformation of arch are consi-dered in formulating its vibration transfer equation.Through application ofthe method,the vibration modes and the relative values of internal forces canbe obtained simultaneously as soon as the vibration frequencies of arch areknown.The simple and direct method developed may be easily calculated withmicrocomputer,and it has extensive usage with high precision.  
          
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      • Sun Renbo, Wang Daiyu, Lu Ping
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.004
        摘要：This paper uses the method of mixed-type series to derive the analyticsolution of cylindrical shell roof,being simply supported transversely,arbitra-rily restrained longitudinally and subjected to gereral transverse local loads.This paper also presents the analytic expressions of the solutions for somekinds of local load.Some examples of this kind of shell roof subjected to ainlined single force near the middle of it with free lorgitudinal edges aregiven.The computation shows that the convergence of the solution is woll  
          
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      • INDUSTRICAL OPTIMAL REGULATOR ADJUSTMENT

        Xiong xingyu
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.005
        摘要：This paper presents a new practical method for PI or PID industrial regu-lator optimal adjustments.This method is well feasible for off-line theoreticaladjustment of a control system and provided for closed loop identification withon-line regulator tuning.The proposed algorithm is based on approximationinversion of s-domain disturbance property of a control system by shiftedChebyshev's series.The PI or PID regulator parameter optimization usings-domain approximation representation of time-domain performance index of acontrol system is exclusively discussed with an example of using the algorit-hm.The introduced method is proved convenient to industrial process withhigh-order mathematical model.And it has both theoretical and engineeringsignificance.  
          
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      • MINIMIZATION PROBLEMS IN THE PRODUCT SPACES

        Li Zemin
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.006
          
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      • Tong Mingchu
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.007
        摘要：In the design of control system using simplex method for optimal multi-parameter,if the difference in number between the greatest and the smallestparameters is very great,the optimization process converges very slowly.Evenoptimal parameters can't be found at all.This paper studies the problem,analyses its cause and poses a resolution means.A testing example shows thatthis means can solve the above problem well.  
          
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      • A PRELIMINARY STUDY OF THE AVERAGE SKY BRIGHTNESS MODEL

        Chen Zhonglin
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.009
        摘要：Starting from the optical factors of Climate and on the basis of CIE formulasof brightness distribution for clear and overcast sky,this paper suggests a kindof formula which can be used to compute brightness distribution on average skybrightness.Besides,it proposes a simple method by which it is easy to carryout the design of natural lighting under the condition of average sky brightnessmodel.  
          
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      • Wang Dongyun
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.010
        摘要：On the basis of outlining our present situation of city water supply and itsgeological map compilation,this paper suggests a new principle which should befollowed in the compiling work of city water supply hydrogeological maps and themain contents of compilation and the ways of expression as one of the map com-piliing plans to be discussed in this field.  
          
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      • Zhong Liexian
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.011
          
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      • Zhou Shizheng, Li Tianrong
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.012
        摘要：This paepr mainly describes the conditions of disposal of municipal dom-estic refuse in onr country,and compares the methods of disposal of munic-ipal refuse with that of other countries.According to the specific conitionsof the cities in on our country,this paper also presents several suggestionson the collection,transport,disposal and use of municipal refuse.  
          
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      • THE SUFFICIENT AND NECESSARY CONDITION FOR A PLANAR TO BE HAMILTONIAN

        Zhou Yinliang
        Vol. 10, Issue 1, (1988) DOI: 10.11835/j.issn.1674-4764.1988.01.013
        摘要：This paper presents a sufficient and necessary condition for any planarembedding G(namely plane graph)of a planar graph to be Hamiltonian.If Gis Hamiltonian,a method that an adjacent edge subgraph method for finddingits Hamilton cycles are given.  
          
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