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基于一维卷积神经网络的钻杆故障诊断 被引量:21
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作者 金列俊 詹建明 +1 位作者 陈俊华 王涛 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2020年第3期467-474,共8页
为了在钻杆故障早期诊断出钻杆的故障类型,提出一种基于一维卷积神经网络的钻杆故障诊断模型,对模型的结构和参数进行详细地设计与分析.参考现有的卷积神经网络模型,结合钻杆的工作特性以及感受野的原理,设计模型的卷积层和池化层的层... 为了在钻杆故障早期诊断出钻杆的故障类型,提出一种基于一维卷积神经网络的钻杆故障诊断模型,对模型的结构和参数进行详细地设计与分析.参考现有的卷积神经网络模型,结合钻杆的工作特性以及感受野的原理,设计模型的卷积层和池化层的层数、卷积核的大小以及滑动步长.该模型省去了对故障信号特征提取的过程,比先前的钻杆故障诊断有更高的诊断准确率.该模型在不同转速工况下和不同土质工况下均具有较强的适应性和抗噪能力. 展开更多
关键词 钻杆故障诊断 一维卷积神经网络 感受野 适应性 抗噪能力
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The characterization of Γ-modules in terms of fuzzy soft Γ-submodules 被引量:1
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作者 ZHOU Min XIANG Da-jing zhan jian-ming 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2013年第2期217-239,共23页
In this paper,we focus on combining the theories of fuzzy soft sets with Γ-modules,and establishing a new framework for fuzzy soft Γ-submodules.The main contributions of the paper are 3-fold.First,we present the con... In this paper,we focus on combining the theories of fuzzy soft sets with Γ-modules,and establishing a new framework for fuzzy soft Γ-submodules.The main contributions of the paper are 3-fold.First,we present the concepts of(R,S)-bi-Γ-submodules,quasi-Γ-submodules and regular Γ-modules.Meanwhile,some illustrative examples are given to show the rationality of the definitions introduced in this paper.Second,several new kinds of generalized fuzzy soft Γ-submodules are proposed,and related properties and mutual relationships are also investigated.Third,we discover some intrinsic connections between the generalized fuzzy soft Γ-submodules presented in this paper and crisp Γ-submodules,and describe the relationships between regular Γ-modules and the generalized fuzzy soft Γ-submodules presented in this paper. 展开更多
关键词 Fuzzy soft set Γ-module (∈ γ γ q δ)(resp. (■ γ γ δ))-fuzzy soft left R-Γ-submodule(right R-Γ-submodules (R S)-bi-Γ-submodule quasi-Γ-submodule) regular Γ-module
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Redefined generalized fuzzy ideals of near-rings 被引量:1
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作者 zhan jian-ming YIN Yun-qiang 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2010年第3期341-348,共8页
With a new idea, we redefine generalized fuzzy subnear-rings (ideals) of a near- ring and investigate some of its related properties. Some new characterizations are given. In particular, we introduce the concepts of... With a new idea, we redefine generalized fuzzy subnear-rings (ideals) of a near- ring and investigate some of its related properties. Some new characterizations are given. In particular, we introduce the concepts of strong prime (or semiprime) (∈, ∈∨ q)-fuzzy ideals of near-rings, and discuss the relationship between strong prime (or semiprime) (∈, ∈∨ q)-fuzzy ideals and prime (or semiprime) (∈, ∈∨ q)-fuzzy ideals of near-rings. 展开更多
关键词 NEAR-RING subnear-ring (ideal) (∈^- ∈^-∨ q^-)-fuzzy subnear-ring (ideal) prime (semiprime) (∈ ∈∨ q)-fuzzy subnear-ring (ideal).
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Generalized fuzzy ideals of near-rings 被引量:1
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作者 zhan jian-ming Davvaz B. 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2009年第3期343-349,共7页
The concept of(∈,∈∨q)-fuzzy subnear-rings(ideals) of a near-ring is introduced and some of its related properties are investigated.In particular,the relationships among ordinary fuzzy subnear-rings(ideals),(... The concept of(∈,∈∨q)-fuzzy subnear-rings(ideals) of a near-ring is introduced and some of its related properties are investigated.In particular,the relationships among ordinary fuzzy subnear-rings(ideals),(∈,∈∨ q)-fuzzy subnear-rings(ideals) and(∈,∈∨q)-fuzzy subnear-rings(ideals) of near-rings are described.Finally,some characterization of [μ]t is given by means of(∈,∈∨ q)-fuzzy ideals. 展开更多
关键词 NEAR-RING subnear-ring (ideal) (∈ q)-fuzzy subnear-ring (ideal) (∈ ∈∨ q)-fuzzy subnear-ring(ideal)
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Some kinds of falling fuzzy filters of lattice implication algebras
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作者 MA Xue-ling zhan jian-ming JUN Young-Bae 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2015年第3期299-316,共18页
In this paper, the concepts of falling fuzzy(implicative, associative) filters of lattice implication algebras based on the theory of falling shadows and fuzzy sets are presented at first. And then the relations betwe... In this paper, the concepts of falling fuzzy(implicative, associative) filters of lattice implication algebras based on the theory of falling shadows and fuzzy sets are presented at first. And then the relations between fuzzy(implicative, associative) filters and falling fuzzy(implicative, associative) filters are provided. In particular, we put forward an open question on a kind of falling fuzzy filters of lattice implication algebras. Finally, we apply falling fuzzy inference relations to lattice implication algebras and obtain some related results. 展开更多
关键词 falling shadow FILTER fuzzy filter falling fuzzy(implicative associative) filter falling fuzzy inference relation lattice implic
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