Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Design optimization method and optimization device of power assembly mounting system

A powertrain and mounting system technology, applied in the power field, can solve problems such as the inability to achieve optimal mounting performance optimization

Active Publication Date: 2012-07-25
BAIC MOTOR CORP LTD
View PDF2 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a design optimization method and an optimization device for a powertrain mount system, which are used to solve the common defect that a single optimization cannot achieve the best mount performance optimization in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Design optimization method and optimization device of power assembly mounting system
  • Design optimization method and optimization device of power assembly mounting system
  • Design optimization method and optimization device of power assembly mounting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0026] An embodiment of the present invention provides a design optimization method for a powertrain mount system, such as figure 1 shown, including:

[0027] Step 101, establish the differential equation of the space six degrees of freedom vibration model of the powertrain mount system according to the force analysis model,

[0028] M is the mass matrix of the powertrain mount system, C is the damping matrix of the powertrain mount system, K is the stiffness matrix of the powertrain mount system, q is the generalized coordinate column vector, {F(t)} is The column vector of the excitation force on the powertrain suspension system, is the first derivative of the generalized coordinate column vector, is the second derivative of the generalized coord...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a design optimization method and an optimization device of a power assembly mounting system. The design optimization method comprises the steps of establishing a differential equation of a space six-freedom degree vibration model of the power assembly mounting system; analyzing to obtain an inherent frequency, an inherent vibration mode and vibration energy coupling among six freedom degrees according to inherent characteristics of the differential equation for the power assembly mounting system; establishing a multiple target optimization function of the power assembly mounting system according to each order inherent frequency, inherent vibration mode and vibration energy coupling; and carrying out optimization design with a particle swarm optimization algorithm. A dynamical model and the optimization function of the power assembly mounting system are established, the multiple target optimization function with reasonable distribution of mounting modal frequency and decoupling degree of energy as targets is determined, and a parallel optimization multiple target algorithm is subsequently adopted to obtain a multiple target optimization scheme set of the power assembly mounting system so that the designed power assembly mounting system can best meet the performance requirements of energy decoupling and modal distribution.

Description

technical field [0001] The invention relates to power technology, in particular to a design optimization method and an optimization device for a power assembly suspension system. Background technique [0002] The noise and vibration (NVH, Noise, Vibration & Harshness) performance of automobiles has become an important part of the vehicle technology level, and people are also putting forward higher and higher requirements for the NVH of the whole vehicle. The engine is the most important source of vibration and noise of the vehicle, and the mount is the vibration system connecting the engine and the chassis, which plays a very important role in the NVH of the vehicle. The NVH performance of the whole vehicle can be improved to a large extent by optimizing the design of the suspension system. [0003] In the prior art, most suppliers or university scientific research institutes use Adams and other multi-body dynamics software or Matlab mathematical software as tools to study ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/50
Inventor 李波鲁平汤林生叶子青
Owner BAIC MOTOR CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com