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Finite Element Analysis and Experimental Study on the ROPS & FOPS for Large Wheel Loaders

Author: ShenYong
Tutor: WangGuoQiang；MaZhu
School: Jilin University
Course: Mechanical Engineering
Keywords: Large loaders ROPS FOPS Nonlinear Finite element method Test
CLC: TH243
Type: Master's thesis
Year: 2011
Downloads: 76
Quote: 0
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Abstract


The roll-over protection device ( ROPS ) is a steel structure system installed outside the cab of construction vehicles , its main function is to protect the safety of the driver when a vehicle roll and other accidents , to minimize the loss of life and property caused by the accident . With the increase in exports and international construction vehicles to improve their security performance requirements , construction vehicles must be equipped with ROPS performance qualified to enter the international market , which requires the domestic engineering vehicle manufacturers and research institutions to improve and perfect the construction vehicles the security structure of the cab and through the appropriate security structure test for international safety certification , to pave the way for the domestic construction vehicles international export . In this paper , under the guidance of this idea , for large wheel loaders ROPS experimental and theoretical studies , the main contents are as follows : 1. Based on the theory of elastic-plastic mechanics , finite element analysis software ANSYS to establish a large wheel loaders ROPS and FOPS nonlinear finite element model , based on the international standard ISO 3471 \provisions , its finite element analysis . (2) in accordance with the international standard ROPS and FOPS structure of the large wheel loaders physical test its products can reach international standard specifies performance requirements for certification ; finite element analysis were compared with the experimental results , the comparison shows that the finite element analysis model is reasonable , ROPS nonlinear analysis is more accurate . Obtained by the finite element analysis and experimental study of the failure mechanisms of large wheel loaders ROPS and design should pay attention to the key issues .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Lifting machinery and transport machinery > Loading and unloading machinery > Loader
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