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Efficient single-cylinder bolt multistage sequential extension path optimization method

A single-cylinder bolt-type, sequential telescopic technology, applied to cranes and other directions, can solve the problem of not being able to plan the path in advance, and achieve the effect of depth optimization of the algorithm effect, increase the depth, and reduce the number of telescopic steps

Active Publication Date: 2017-05-31
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Different from document 1, which is only a program implementation method, the path cannot be pre-planned, and it can only be "one step back, one step"; the present invention provides a systematic solution to the path optimization problem, as long as the input of the current combination and target combination, the system can plan the optimal path

Method used

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  • Efficient single-cylinder bolt multistage sequential extension path optimization method
  • Efficient single-cylinder bolt multistage sequential extension path optimization method
  • Efficient single-cylinder bolt multistage sequential extension path optimization method

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Embodiment Construction

[0046] The telescopic boom has n-section arms and includes the following steps:

[0047] Step (1): Receive the current state set of the telescopic arm {A[1], A[2]...A[n]}, and the target state set of the telescopic arm {T[1], T[2]...T[n]}; among them:

[0048] n is the number of telescopic boom sections; A[i] is the current state of the i-th boom, the value of A[i] is m, and m is a positive integer, indicating the position of the pin holes distributed on the boom section, such as: the first pin Hole, second pin hole...m-th pin hole, each pin hole corresponds to a different cylinder stroke; the boom section bolts are in different pin holes, so they have different extension lengths;

[0049] In this embodiment, there are a total of 4 pin holes on the boom section, and the values ​​of m are 1, 2, 3, 4, which correspond to 0%, 45%, 90, and 100% of the cylinder stroke respectively; the current state of the telescopic boom is set {A [1], A[2]...A[n]} is: there are n sections of telescopi...

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Abstract

The invention relates to an efficient single-cylinder bolt multistage sequential extension path optimization method, and belongs to a single-cylinder bolt multistage sequential extension path optimization method. Shrinkage arm limit state sets are obtained through calculation of a needed maximum travel and a needed minimum travel and judgment of an operation flow; the step sequence enumeration is performed for all the obtained shrinkage arm limit state sets according to a sequential extension principle; and the optimal shrinkage arm limit state set needs the fewest step sequences. The method is a general and universal algorithm, and is suitable for n sections of extension arms; each section of arm is provided with m bolt positions; the algorithm is clear in logic and expression, is high in integration level, creates an own system, can search the optimal depth solution, and has the evaluation criterion on the optimal solution; and generally, the optimization strength reaches above 10%.

Description

Technical field [0001] The invention provides a single-cylinder bolt type multi-stage sequential telescopic path optimization method. The single-cylinder bolt type multi-stage sequential telescopic is to sequentially push a multi-section telescopic arm / sleeve by a driving cylinder, and each section of the arm / sleeve has several pin holes Position, the arm pin at the end of the boom section is locked with the pin hole of the outer boom section, so that the telescopic boom / sleeve is gradually extended to the required length. The single-cylinder bolt-type multi-stage telescopic boom of a truck crane is a typical multi-stage sequential telescopic mechanism. Background technique [0002] "Single-cylinder latch type sequential telescoping" refers to: using a telescoping cylinder to extend or retract each boom section to a certain arm pin hole position in sequence, and the stroke of the cylinder is only one arm length. The expansion and contraction is based on the principle of "shrinki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/70B66C23/693
CPCB66C23/705
Inventor 毛艳成凯
Owner JILIN UNIV
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