SU1357978A2 - Device for determining reliability of objects - Google Patents

Description

The invention relates to computing and automation, can be used to analyze and predict the structural reliability of objects, and is an improvement on the author. No. 708359.

The aim of the invention is to improve the speed of the device by excluding from the analysis when the device is working those model states in which the number of working elements is less than their number in the minimum path of the reliability model (ensuring the functioning of the object. This technical solution allows increasing the speed of the device by reducing the number of comparisons performed by the device.

The drawing shows a diagram of the proposed device.

The device contains a generator of 1 clock pulses, a counter of 2 coincidences, a register of 3 addresses, a counter of 4 states, the first 5 and second 6 blocks of comparison, a block of memory 7, a register 8, a decoder 9, the first element OR 10, a switch 11, a switch 12 and the second element OR 13,

Before switching on the device, the model of the object under study is entered into block 7.

Switch 11 is set to the position corresponding to the number of Elements in the model, namely, if there are n elements in the model, the switch is connected to the output (n + 1) of the 4th digit of the 4 state counter.

Using the switch 12 to the inputs of the element 13 connect those outputs of the decoder 9, a single signal which corresponds to the number of healthy elements in the state

models of system reliability, not provided from the output of counter 4 to the units of the minimum path length of the model.

The device works as follows.

The generator 1 is started and the modegies are searched through the state, the purpose of which is to count the number of working states of the model with K working elements (, 2,. ,,,, n, where n is the number of model elements). When brute for a serviceable (working) element of the model, it corresponds to 1 at the corresponding output of counter 4, and to the failed element - O. Irk to brute force

the pulses from the generator 1 are sent to the counting input of the register 3. By the code formed in register 3, the corresponding path from block 7 is executed. The read information is compared by block 5 to the code received from counter 4. If the codes do not match, then the next signal from oscillator 1 produces an increase in the address of register 3 by one and provides more from block 7 of the next word. When the codes match, the signal from the output of block 5 increases the code stored in the counter 2. The decoder 9 maps the positional code containing K units at the input of the decoder to the unitary code at the output of the decoder containing the unit at the Kth output, associated with the entry entry permissions into the counter 2. The latter accumulates the number of operating states - a scientific research institute containing K operable

items.

If the number 1 at the output of the counter 4 is less, the number of serviceable elements in the minimum way in the mill

0 reliability, ensuring the functioning of the object, then at the entrance to the input element 13 from the decoder 9 through the switch 12 any of these: signals from the output of the second element

5 13 the signal to the input element 10, which provides an increase in the code issued from the output of the counter | 4, one. Thus, the previous state, taken from the output of counter 4, is excluded from further comparison with each of the paths recorded in block 7,

The signal from the output of block 5 is an increase in the code, giving 0

tsu. as a result, the next model state is tested.

If, when issuing all the paths of the model under study from block 7, the code of any of the paths does not coincide with the code at the output of counter 4, then the signal from the output of block 6, which appears when 3) forms a code that

coincides with the code corresponding to the number of paths in the model and contained in register 8, the code incrementing from the output of the 4 state counter is increased by one. With

In this way, the previous state outputted from the output of the counter 4 is considered inoperable. The increase in the content of counter 2 does not occur.

The process continues until all 2 states are searched, after which the signal from the (n + 1) -th bit of counter 4 is searched for the contents of: counter 2.

Soderzim counter 2 corresponds to the number N of model paths with K healthy elements. Based on enumeration values N

Editor L. Langazo

Compiled by N. Velinkova

Tehred M. Khodanich Proofreader V. But ha

Order 6001/51 Circulation 671 Subscription VNISHS USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st.,. four

Claims (1)

The structural reliability of the object under investigation is determined. Claims of Invention A device for determining the reliability of objects according to ed. No. 708359, characterized in that, in order to improve the speed of the device, a switch and a second OR element are inputted to it, the output and inputs associated respectively with the third input of the first OR element and with the outputs of the switch, the inputs of which are connected to the outputs of the decoder.