Modal Test/Calculation Correlation Study on the Lower Crankcase of High-Duty Diesel Engine

FENG Hui-hua; ZUO Zheng-xing; LIAO Ri-dong; ZHANG Ru-hua

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Article Navigation > JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY > 2004 > 13(1): 58-62

FENG Hui-hua, ZUO Zheng-xing, LIAO Ri-dong, ZHANG Ru-hua. Modal Test/Calculation Correlation Study on the Lower Crankcase of High-Duty Diesel Engine[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 58-62.

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FENG Hui-hua, ZUO Zheng-xing, LIAO Ri-dong, ZHANG Ru-hua. Modal Test/Calculation Correlation Study on the Lower Crankcase of High-Duty Diesel Engine[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 58-62.

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Modal Test/Calculation Correlation Study on the Lower Crankcase of High-Duty Diesel Engine

School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China

Funds: SponsoredbytheMinisterialLevelAdvancedResearchFoundation(20101.2)

Received Date: 2003-03-05

Abstract

Abstract

To set up the dynamic FEM model of a high-duty diesel's lower crankcase with sufficient precision, modal correlation research on tested and calculated modes have been fulfilled. MACs between each mode pairs, CoMACs and ECoMACs on each node of modal testing model have been calculated. On the assistant of modal shape comparison, MACs could afford information about correlating relations between tested and calculated mode groups. CoMACs and ECoMACs have pointed out the direction of structure modification to FEM model. The results of the study show that the analytic model built has a certain degree of accuracy.
- diesel,
- lower crankcase,
- modal analysis,
- modal correlation,
- FEM

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References(8)

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