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Abstract. Asphalt performance has important effect on the fatigue resistance performance of asphalt mixture. This research based on the DSR time scanning mode, investigated the constant strain performance of 70 # matrix asphalt and SBS modified asphalt. Based on 50% G* 0 to simulate the fatigue performance of two kinds of the asphalt.

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The integrated system of design for manufacturing and assembly (DFMA) and internet-driven collaborative design was presented to support product design, manufacturing process, and assembly planning for product. The system managed and scheduled group oriented collaborative activities. The design guidelines of Internet-driven collaborative design & DFMA were expressed. Product design and assembly planning can be operated synchronously, intelligently, integrated under the condition of Internet-driven collaborative design and DFMA. The technologies of collaborative modelling, collaborative manufacturing, and Internetdriven collaborative assembly for the pump were developed, which was an example.

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