Modeling approach of hydraulic mount

A modeling method and hydraulic mounting technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of difficulty in improving the accuracy of simulation models, and achieve simplified structure, improved accuracy, and simplified modeling. the effect of the process

Active Publication Date: 2017-05-10
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the accuracy of the simulation model is not easy to improve, the embodiment of the present invention provides a hydraulic mount modeling method

Method used

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  • Modeling approach of hydraulic mount
  • Modeling approach of hydraulic mount
  • Modeling approach of hydraulic mount

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Experimental program
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Effect test

Embodiment 1

[0038] The embodiment of the present invention provides a hydraulic mount modeling method, which is suitable for the simulation analysis of the hydraulic mount when it is subjected to low-frequency excitation, such as figure 1 As shown, the modeling method includes:

[0039] Step 101: Establish a physical model of the hydraulic mount based on assumed conditions.

[0040] Among them, the hydraulic mount includes a rubber main spring, an upper liquid chamber, a lower liquid chamber and an inertia channel.

[0041] Specifically, the hydraulic mount also includes a decoupling membrane and a bottom membrane. The rubber main spring, the decoupling membrane and the inertia channel constitute the upper liquid chamber, and the decoupling membrane, the inertia channel and the bottom membrane constitute the lower liquid chamber. The upper liquid chamber and the lower liquid chamber The chamber is filled with liquid.

[0042] The following is a brief introduction to the working principl...

Embodiment 2

[0049] The embodiment of the present invention provides a hydraulic mount modeling method, which is suitable for the simulation analysis of the hydraulic mount when it is subjected to low-frequency excitation, such as figure 2 As shown, the modeling method includes:

[0050] Step 201: Establish a physical model of the hydraulic mount based on assumed conditions.

[0051] Among them, the hydraulic mount includes a rubber main spring, an upper liquid chamber, a lower liquid chamber and an inertia channel.

[0052]Specifically, the hydraulic mount also includes a decoupling membrane and a bottom membrane. The rubber main spring, the decoupling membrane and the inertia channel constitute the upper liquid chamber, and the decoupling membrane, the inertia channel and the bottom membrane constitute the lower liquid chamber. The upper liquid chamber and the lower liquid chamber The chamber is filled with liquid.

[0053] In the above implementation, the assumed conditions include i...

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Abstract

The invention discloses a modeling approach of hydraulic mount, and belongs to the automotive technology field. The modeling approach comprises: based on the assumed condition establishing physical model of hydraulic mount, and the hydraulic mount is composed of a rubbing spring, an upward fluid chamber, a downward fluid chamber and an inertia track. The assumed condition is composed of neglecting the quality of rubbing spring, hypothesizing the fluid pressure acting inside the inertia track is equal; according to the physical model, establishing finite element model; based on the finite element model, the technology is capable of gaining model parameter and stimulation model through directly searching for excellent methods to identify system. The modeling approach has the advantages of being easier to improve the precision of the stimulation model.

Description

technical field [0001] The invention belongs to the technical field of automobiles, in particular to a modeling method of a hydraulic mount. Background technique [0002] The hydraulic mount is a vibration isolation device on a car, which is installed between the engine and the frame, so that the hydraulic mount can not only reduce the vibration transmitted from the engine to the frame, but also reduce the external vibration received by the engine. [0003] After the car is started, it will produce a very complex vibration response, and the hydraulic mount will be affected by various excitation vibration sources, including ignition excitation, inertial force excitation and torque excitation from the inside of the engine, as well as Suspension excitation and steering excitation from the outside of the engine, etc., and since the hydraulic mount is a typical nonlinear system, its dynamic characteristics change with the change of the excitation amplitude and excitation frequenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23
Inventor 王梁
Owner CHERY AUTOMOBILE CO LTD
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