巻号一覧
3 巻, 9 号
選択された号の論文の7件中1～7を表示しています
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南雲 仁一, 鈴木 良次1964 年 3 巻 9 号 p. 645-655
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーPDF形式でダウンロード (3888K) -
佐藤 力1964 年 3 巻 9 号 p. 656-664
発行日: 1964/09/10
公開日: 2011/05/24
ジャーナル フリーA system of time optimal processes is dealt with in this paper. Differential equation of the sys-tem and admissible control u are as follows:
x=Ax+uBx, umin≤u≤ umax,
where function x is a vector in n-dimensional Euclidian space, A and B are n × n matrices, and it is a scalar function. The object in this optimal process is to have the trajectory reach a shell with a center at origin from an arbitrary point in x-space. Using maximum principle and transversality condition, the admissible control u, which is of bang-bang type, is obtained. Three syntheses are made in the differential equation of second order, that is, 1) parametric control for small damping, 2) parametric control for large damping, and 3) parametric control for restoring force. Uniqueness of the solution is not formed in the case of 2).抄録全体を表示PDF形式でダウンロード (1334K) -
古田 勝久, 伊沢 計介1964 年 3 巻 9 号 p. 665-674
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーAmoung the various methods used for determining the process dynamics, the method using ccross-correlation function seems useful if the white noise can be available as a test signal. In this paper, M-sequence signal picked out among the binary quasi-random signals is used instead of the white noise and the error caused by using this input signal is analysed in the time domain and frequency domain. Test was made on the first and second order lag systems as well as on a distributed parameter system, using the M-sequence signal generator designed by the authors. The results were in fairly good coincidence with theoretical results. This method using the binary quasirandom signal appears very useful and promises future applications in adaptive control systems.抄録全体を表示PDF形式でダウンロード (1198K) -
佐藤 勇1964 年 3 巻 9 号 p. 675-683
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーIn the adaptive control system, the response of process is measured in real time and is improved inaccordance with the parameter variation. Since the measurement is performed in the normal operating condition, the so-called statistical method is used. In conventional statistical method, much care has never been paid to the fact that the measurement must be performed in the finite length of time, and it has been taken into consideration that the mean valve of sufficiently long time becomes constant within the range of statistical variance. This method that uses the maximum length sequence has no error in the measurement in the finite length of time and has several advantages such as simple handling and easy estimation of measuring accuracy. As this method handles the sampled data almost with addition only, the calculating time is negligibly short if there is used the digital computer or so. The test signal is binary and can be produced by the relays or cam and is smaller than in the pulse testing method.抄録全体を表示PDF形式でダウンロード (1212K) -
古谷 直道, 森竜 太郎1964 年 3 巻 9 号 p. 684-694
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーIn analysing the signals obtained from stochastic process, it was found that the numbers of zero crossing are useful and practical because of simple measurement and easy data handling. But, the expression for zero interval distribution is too complicated to be used in practical measurement. In this paper, approximate expressions of both zero distribution and its behaviors are investigated from practical point of view. First, as an example of independent point process, modified Poisson point process is defined and its behaviors are described. Then, a random signal S0 with the spectral density of the form,
S (f) =exp (-f2/2Q2)
is studied, and correspondence between zeros of S0 and modified Poisson point process is discussed. In the latter part of this paper, experimental data of the random signal obtained from a noise generator are proved to approximately coincide with the data of theoretical investigation. Given in the last are applications of zero measurement to the examination of stationarity of random signals and to the approximate calculation of spectral density.抄録全体を表示PDF形式でダウンロード (1256K) -
後藤 圭司, 井伊谷 鋼一1964 年 3 巻 9 号 p. 695-701
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーReported in the previous paper 2) are the measurement and control of solid-gas mixture ratio in two phase flow using a solid-gas two phase flowmeter. However, dynamic characteristics of a pneumatic conveying pipe line could not be discussed because of large time lags of primary means, manipulating device, etc. In this paper, therefore, a new measuring element for pressure was used and the pressure change was photographed by use of a synchroscope. Dynamic response of pressure in a pneumatic conveying pipe line was discussed for step change of flow rate of air and solids respectively. It was proved that time lags of the pressure response can be neglected for the change of air flow rate alone. There is a relation between pressure P and volumetric flow rate of air V as follows;
P=ZV2=(Za+ Zs) V2
where Za and Zs are impedances of pipe line for air flow and solid flow respectively. The experiment shows that Za is a constant irrespective of air flow rate and that Zs is proportional to the“hold up ”of solids in a pipe line. Therefore, dynamic characteristics of a pneumatic conveying pipe line can be represented by an electric circuit model which has a constant resistance Za and variable resistance Zs, where pressure and square of volumetric air flow rate are equivalent to electric voltage and electric current respectively.抄録全体を表示PDF形式でダウンロード (1045K) -
土屋 喜一1964 年 3 巻 9 号 p. 702-704
発行日: 1964/09/10
公開日: 2010/10/21
ジャーナル フリーPDF形式でダウンロード (333K)
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