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Motorcycle frame indoor multi-axis fatigue test method under orthogonal force control

A test method, motorcycle technology, applied in vehicle testing, machine/structural component testing, instruments, etc., can solve the problems of complex structure of the test system, difficult iterative convergence, excitation channel coupling, etc., achieve high simulation accuracy, meet Structural degrees of freedom and motion decoupling, efficient and accurate assessment of fatigue performance

Active Publication Date: 2018-01-05
JILIN UNIV
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Problems solved by technology

[0005] The present invention provides an indoor multi-axis fatigue test method for motorcycle frame controlled by orthogonal force in order to solve the problems of complex structure of the test system, coupling of excitation channels and difficulty in iterative convergence existing in the fatigue test process of the motorcycle frame.

Method used

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  • Motorcycle frame indoor multi-axis fatigue test method under orthogonal force control
  • Motorcycle frame indoor multi-axis fatigue test method under orthogonal force control
  • Motorcycle frame indoor multi-axis fatigue test method under orthogonal force control

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specific Embodiment approach 1

[0052] Specific implementation mode 1. Combination Figure 1 to Figure 6 This embodiment will be described. A multi-axis fatigue test method of a motorcycle frame controlled by a normal force, a set of test system is adopted in the method, the test system includes a mounting base 1, a rear support of a horizontal vibration exciter 2, a horizontal vibration exciter 3, Guide rail 4, horizontal vibration exciter force sensor 5, plane hinge I6, front bracket riser 7, front bracket splint 8, gantry 10, vertical vibration exciter 11, vertical vibration exciter force sensor 13, plane hinge II 14, connecting fixture 15. Intermediate shaft 16, intermediate shaft fixing support 17, engine assembly 18, plane hinge III19, guide rail slide plate 20, plane hinge IV21 and plane hinge V22;

[0053] The rear support 2, guide rail 4, gantry 10, and intermediate shaft fixing support 17 of the horizontal vibration exciter are respectively fixed on the installation base 1; I6 is connected to the...

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Abstract

The invention discloses a motorcycle frame indoor multi-axis fatigue test method under orthogonal force control, which relates to a motorcycle frame fatigue test method and aims at solving the problems of a complicated test system structure, excitation channel coupling and hard iterative convergence and the like existing during a motorcycle frame fatigue test process in the prior art. A test system is included. The system is a multi-axis multi-excitation load spectrum simulation iteration system, multi-axis impact load on the frame during actual road driving can be simulated, and the clampingand loading mode and the loading characteristics during the actual road driving of the frame more tend to be consistent. The method can simulate the multi-axis impact load on the frame during the actual road driving of the motorcycle, the actual loading characteristics of the frame are vividly reproduced indoors, the frame fatigue performance can be checked more efficiently and accurately, the orthogonal force control mode is adopted, that is, a horizontal exciter and a vertical exciter both adopt a force excitation and control mode, the structural freedom and the motion decoupling of the system are well met, and high simulation precision is obtained.

Description

technical field [0001] The invention relates to a motorcycle frame fatigue test method, in particular to an indoor multi-axis fatigue test method of a motorcycle frame controlled by a normal force. Background technique [0002] The motorcycle frame is the most critical load-bearing component of the whole vehicle. It is prone to fatigue fracture under the multi-axial disturbance stress formed by the excitation of uneven road surface and the combined loading of passengers or goods for a long time. Therefore, for the lightweight design of the frame of the new motorcycle model, the fatigue reliability assessment test is essential. The traditional road test and proving ground test are time-consuming and labor-intensive, and the repeatability is poor, while the indoor bench test can simulate and reproduce the actual road running load characteristics of the frame in the room, with a short cycle and good repeatability, and the fatigue assessment of the frame is highly targeted. Has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 王登峰熊锋张帅蔡珂芳王爽吕天佟
Owner JILIN UNIV
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