Vehicle electromechanical ISD suspension structure based on fractional order electric network and parameter determination method thereof

A parameter determination and fractional order technology, applied in the field of vehicle suspension vibration reduction, can solve the problems that restrict the wide application of inerter components, and achieve the effect of fast local convergence and high solution efficiency

Pending Publication Date: 2021-07-23
JIANGSU UNIV
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Problems solved by technology

[0003] The existing research is based on linear inerters, springs and dampers. However, in practical applications, ideal linear elements often have many nonlinear factors, such as: mechanical ball screw inerter elements have friction, Nonlinear factors such as backlash and screw elastic effect restrict the wide application of inerter components, and ideal linear components have limitations in actual modeling and application

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  • Vehicle electromechanical ISD suspension structure based on fractional order electric network and parameter determination method thereof
  • Vehicle electromechanical ISD suspension structure based on fractional order electric network and parameter determination method thereof
  • Vehicle electromechanical ISD suspension structure based on fractional order electric network and parameter determination method thereof

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0043] Such as figure 1 Shown is the vehicle electromechanical ISD suspension structure and its parameter determination method based on the fractional order electrical network of the present invention, mainly comprising:

[0044] Step 1): Use unified fractional differential and integral operators to analyze and express the fractional order electromechanical network elements;

[0045] The unified fractional differential and integral operators used are:

[0046]

[0047] in, is a fractional calculus operator, α is a real number, t is an independent variable, t 0 is the lower boundary of the independent variable, f(t) is a function that changes with time, and τ is any value of the independent variable t. According to the above definition, fractional order mechanical ne...

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Abstract

The invention discloses a vehicle electromechanical ISD suspension structure based on a fractional order electric network and a parameter determination method of the vehicle electromechanical ISD suspension structure. The method mainly comprises the following steps: 1, analyzing and expressing a fractional order electromechanical network element by adopting a unified fractional order differential and integral operator; 2, constructing a vehicle electromechanical ISD suspension structure model based on a fractional order electric network; 3, selecting a suspension design optimization performance index; 4, solving the suspension structure by adopting an optimization algorithm; and 5, carrying out simulation analysis on the structural performance of the vehicle electromechanical ISD suspension based on the fractional order electric network. Compared with an integer order element, the fractional order element has more complex vibration transmission characteristics, and a simulation result shows that the vehicle electromechanical ISD suspension structure based on the fractional order electric network and the parameter determination method thereof have more excellent vibration isolation performance by applying the vehicle electromechanical ISD suspension structure based on the fractional order electric network and the parameter determination method thereof.

Description

technical field [0001] The invention relates to the technical field of vehicle suspension vibration reduction, in particular to a vehicle electromechanical ISD suspension structure based on a fractional order electrical network and a parameter determination method thereof. Background technique [0002] As an important assembly for the vehicle to carry the weight of the vehicle body, attenuate and reduce the impact from uneven road surfaces, the structural development of the suspension has gone through the process of traditional passive suspension to semi-active suspension and active suspension. Traditional suspension structures are based on the classic two-element "spring-damper" and lack mass elements. In recent years, a vehicle suspension structure composed of a new type of two-terminal element "inerter" has gradually attracted the attention of academia and engineering fields. The vibration isolation system composed of three types of mechanical network elements "inerter-sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/20G06F119/14
CPCG06F30/17G06F30/20G06F2119/14
Inventor 沈钰杰花杰刘雁玲杨晓峰何涛宋航尹澳
Owner JIANGSU UNIV
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