基于IGD-IHT算法和PIQEDS-IBPSO-NESN算法的制動盤表面缺陷檢測方法

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SurfaceDefectDetection Method ofBrakeDiscsBased on the IGDIHT Algorithm and the PIQEDS-IBPSO-NESN Algorithm

Li Feng，Yu Zhen23，Gao Juan4，An Qi5 （1.Haier School （Electromechanical Schol），Qingdao Technical Collge，Qingdao 266555; 2.Institute ofOceanographic

Instrumentation，QiluUniversityofTechnology（ShandongAcademyofSciences），Qingdao266O61;3.StateKeyLaboratoryof

PrecisioMeasuringTechologyandIstrument，TianjinUniversityTianjinO2;4.ScholofIformatics，Qingdoical College，Qingdao 266555;5.Departmentof Mechanical Engineering，Tsinghua University，Beijing100084）

Abstract：To improve therobustnessof traditional brakediscsurface defeet detection，anautomaticdetection instrumentbased onmachinevisionisdesigned.Thedefectfeatures of brakediscsare extractedusing the ImprovedGaussianDiffrencealgorithmandHough Transformalgorithm（IGD-IHT）.Anidentificationmethodfor brakedisc surface defectsisdesigned basedon the Perception-based Image QualityEvaluatorand DempsterruleimprovedBayesparticle swarm optimization-Nonlinear echo statenetwork to beteridentify defects.The experimental results show that accuracy of this method is more than 97% ，thefalse alarm rateisless than 1.5% and the missing alarm rate is less than 1.5% .The method described in this article is superior to traditional methodsand improves theacuracyof brakediscsurface defectrecognition.Factory testingshows thatthismethod canaccuratelyidentifyalmostall defects，and therearerelativelyfew falsepositivesor falsenegatives，and has high reliability and stability.

Keywords：Brake disc，Surface defect feature extraction，IGD-IHT algorithm，Surfacedefect identification，PIQEDS-IBPSO-NESNalgorithm

1前言

制動盤作為汽車制動系統(tǒng)的關(guān)鍵部件，通過摩擦保證制動效果[1-3]，一般由灰鑄鐵制成，鑄造過程中，制動盤表面可能會出現(xiàn)沙眼、氣孔等缺陷46]。（剩余16943字）