[1]胡永會,吳運(yùn)新. 淬火應(yīng)力場對鋁合金厚板固有頻率的影響?yīng)J].中國材料進(jìn)展,2011,(11):050-54.
HU Yonghui,WU Yunxin. Influence of Quenching Stress Field on Natural Frequency of Aluminum Alloy Thick Plate[J].MATERIALS CHINA,2011,(11):050-54.
點擊復(fù)制
淬火應(yīng)力場對鋁合金厚板固有頻率的影響?yīng)?/span>(
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中國材料進(jìn)展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期數(shù):
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2011年第11期
- 頁碼:
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050-54
- 欄目:
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研究報告
- 出版日期:
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2011-11-25
文章信息/Info
- Title:
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Influence of Quenching Stress Field on Natural Frequency of Aluminum Alloy Thick Plate
- 作者:
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胡永會; 吳運(yùn)新
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（中南大學(xué)機(jī)電工程學(xué)院，湖南 長沙 410083）
- Author(s):
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HU Yonghui; WU Yunxin
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(College of Mechanical and Electrical Engineering, Central South University, Changsha 410083，China)
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- 關(guān)鍵詞:
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7075鋁合金; 淬火; 殘余應(yīng)力場; 振動時效; 固有頻率
- 文獻(xiàn)標(biāo)志碼:
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A
- 摘要:
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建立7075鋁合金厚板淬火殘余應(yīng)力場數(shù)學(xué)模型，理論與實驗探討振動時效中淬火殘余應(yīng)力場對板固有頻率的影響。結(jié)果表明，板尺寸、密度、均勻性等物理材料特性確定時，其固有頻率主要受到殘余應(yīng)力場的分布狀態(tài)影響，且高階固有頻率受殘余應(yīng)力的影響比低階固有頻率大。淬火殘余應(yīng)力場總是增大板的固有頻率，振動時效消減或均勻化殘余應(yīng)力的同時，也將降低各階次固有頻率。
- Abstract:
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Mathematical model of quenching residual stress filed of 7075 aluminum alloy thick plate was established to theoretically and experimentally analyze the influences of quenching residual stress on plate natural frequency during VSR. The results show that plate natural frequency, based on constant physical material characteristics like dimension, density and homogeneity, etc, is mainly influenced by the residual stress distribution characteristics while quenching residual stress always increases plate natural frequency. And the higher the rank number is, the larger the influence of residual stress on frequency is. Moreover, natural frequency in each order would decrease following residual stress relaxation or homogenization caused by stress re distribution during VSR.
更新日期/Last Update:
2011-12-06