Dissertation
Dissertation > Transportation > Road transport > Automotive Engineering > Automotive structural components > Cab and body > Cab and body parts and components > Skeleton

Research of the Bus Frame Analysis and Optimization Based on NX

Author ShenBing
Tutor HuPing
School Dalian University of Technology
Course Vehicle Engineering
Keywords Bus NX Secondary development Knowledge Engineering Optimization
CLC U463.831
Type Master's thesis
Year 2011
Downloads 62
Quotes 2
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The body design occupies a pivotal position in the passenger vehicle design , as technology continues to progress and raising the level of people 's material life , also tends to be diverse and complex customer demand for passenger car types and styles . In traditional serial design approach , the design efficiency is low , cumbersome manual operation , and it is difficult to reach the requirements and objectives of the modern body structure design . How to avoid the complicated manual operation to shorten the product development cycle , and has become an urgent problem . NX is the design, analysis , simulation and manufacturing software in one system , with secondary development of required application programming interface and interface development tools . Bus Body Design Optimization NX applications have yet to see that this topic is aimed to improve the Bus Body optimize automation and intelligent design , optimization of passenger cars in the NX platform launched a related study . This article is based on the NX secondary development platform , achieved by means of the knowledge fusion technology and parameters , analysis -driven optimization bus body design . The program is based on the NX secondary development tools as a link, and seamless integration with knowledge fusion technology , CAD software and NX NASTRAN solver . Mainly to carry out the following work : constraint relations between the beams in order to reflect the correlation between the beams of the bus body , with the relevant parameters to set the relevant parameters and pay attention to point . Discussion of the relevant parameters of the unique processing cycle affect multiple beam associated parameters ; application secondary development tools to build a bus body skeleton model parameterization , to ensure the synchronization update the adjustment beam ; knowledge fusion technology provides symmetric beam and distributed beam constraint relations ; process by analyzing the NX Advanced Simulation , developed an automated process optimization framework ; optimized passenger local weld spacing obtained a better weld spacing . Secondary development of technology based on the NX platform have very far-reaching significance in the bus body design . This technology can reduce repetitive manual operations in the traditional body design , and contribute to the achievement of collaborative design , engineers can put more energy into the design itself , and to improve the design quality and design efficiency and shorten the development cycle of the body .

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