二维两层介质界面接触热阻的反辨识研究
接触热阻是研究工程传热问题的重要参数，很多工程领域都需要有效辨识出接触热阻。针对目前接触热阻辨识方法局限于一维两层介质传热，只能求出一个接触热阻单值，以及温度测点必须布置在介质温度梯度方向上等问题，采用边界元法与共轭梯度法相结合的方法，对二维两层介质界面接触热阻进行反辨识研究。该方法可以求解出随界面接触线位置变化的接触热阻，并且边界元算法只需离散边界，不需要对内部区域进行离散，因此温度测点位置可以任意选取。建立二维两层介质传热模型作为算例并进行分析：该方法可以有效求解接触热阻，但作为反辨识方法的一种同样存在不适定性，并且温度测点距离接触界面越远误差越大，采用最小二乘法对求解结果进行优化处理可以...
Saved in:
| Published in | 西北工业大学学报 Vol. 36; no. 1; pp. 28 - 34 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
西北工业大学 航天学院,陕西 西安,710072
2018
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-2758 |
Cover
| Abstract | 接触热阻是研究工程传热问题的重要参数，很多工程领域都需要有效辨识出接触热阻。针对目前接触热阻辨识方法局限于一维两层介质传热，只能求出一个接触热阻单值，以及温度测点必须布置在介质温度梯度方向上等问题，采用边界元法与共轭梯度法相结合的方法，对二维两层介质界面接触热阻进行反辨识研究。该方法可以求解出随界面接触线位置变化的接触热阻，并且边界元算法只需离散边界，不需要对内部区域进行离散，因此温度测点位置可以任意选取。建立二维两层介质传热模型作为算例并进行分析：该方法可以有效求解接触热阻，但作为反辨识方法的一种同样存在不适定性，并且温度测点距离接触界面越远误差越大，采用最小二乘法对求解结果进行优化处理可以有效提高辨识精度和稳定性。 |
|---|---|
| AbstractList | 接触热阻是研究工程传热问题的重要参数，很多工程领域都需要有效辨识出接触热阻。针对目前接触热阻辨识方法局限于一维两层介质传热，只能求出一个接触热阻单值，以及温度测点必须布置在介质温度梯度方向上等问题，采用边界元法与共轭梯度法相结合的方法，对二维两层介质界面接触热阻进行反辨识研究。该方法可以求解出随界面接触线位置变化的接触热阻，并且边界元算法只需离散边界，不需要对内部区域进行离散，因此温度测点位置可以任意选取。建立二维两层介质传热模型作为算例并进行分析：该方法可以有效求解接触热阻，但作为反辨识方法的一种同样存在不适定性，并且温度测点距离接触界面越远误差越大，采用最小二乘法对求解结果进行优化处理可以有效提高辨识精度和稳定性。 TK124; 接触热阻是研究工程传热问题的重要参数,很多工程领域都需要有效辨识出接触热阻.针对目前接触热阻辨识方法局限于一维两层介质传热,只能求出一个接触热阻单值,以及温度测点必须布置在介质温度梯度方向上等问题,采用边界元法与共轭梯度法相结合的方法,对二维两层介质界面接触热阻进行反辨识研究.该方法可以求解出随界面接触线位置变化的接触热阻,并且边界元算法只需离散边界,不需要对内部区域进行离散,因此温度测点位置可以任意选取.建立二维两层介质传热模型作为算例并进行分析:该方法可以有效求解接触热阻,但作为反辨识方法的一种同样存在不适定性,并且温度测点距离接触界面越远误差越大,采用最小二乘法对求解结果进行优化处理可以有效提高辨识精度和稳定性. |
| Abstract_FL | Thermal contact resistance(TCR)is one of the important parameters in heat transfer problems of engi-neering,and it is necessary to estimate the value of TCR effectively in many engineering fields.Considering the lim-itation of current estimation methods of TCR such as only focusing on one-dimensional thermal conduction,getting a single value of TCR merely,and the temperature measuring points only being placed in temperature gradient direc-tion of mediums,boundary element method(BEM)and conjugate gradient method are combined to estimate the TCR in planar mediums. The value of TCR in relation to the position of contact interface line is estimated with this method,and the positions of temperature measuring points can be selected randomly because of the characteristic of BEM that there is no necessity to discrete the inner area and it is sufficient to discrete the boundary. The analysis of calculation examples base on heat transfer model of planar medium demonstrates that:this method can estimate the TCR effectively,but the ill-posedness is also existed in this method which is one of the inverse problems,and the calculation error of TCR is increased with the distance from temperature measuring points to contact interface, the estimation precision and stability can be improved after optimization with least square method. |
| Author | 温晶晶;李磊涛;刘承骛;吴斌 |
| AuthorAffiliation | 西北工业大学航天学院,陕西西安710072 |
| AuthorAffiliation_xml | – name: 西北工业大学 航天学院,陕西 西安,710072 |
| Author_FL | Wu Bin Li Leitao Liu Chengwu Wen Jingjing |
| Author_FL_xml | – sequence: 1 fullname: Wen Jingjing – sequence: 2 fullname: Li Leitao – sequence: 3 fullname: Liu Chengwu – sequence: 4 fullname: Wu Bin |
| Author_xml | – sequence: 1 fullname: 温晶晶;李磊涛;刘承骛;吴斌 |
| BookMark | eNrjYmDJy89LZWHgNDQwMNA1Mje14GDgLS7OTDIwMDQ0srSwsOBkMHuyq-f57i1Pdix5urHpye7uF1tWPJ_a83Luomd9S18sX_a8ee3LGbufz2p52t_7Yt-KF-vbni-Y8nzlNh4G1rTEnOJUXijNzRDi5hri7KHr4-_u6ezoo5tsZmiqa2iWmJxsmJiaamBoYmZmmWRiaWiRYpxmbGluYGxhnpwKFEpJSzYwM7QwSTGwSExLMrAwSElLS01KNEoyNDexNOZm0IQYW56Yl5aYlx6flV9alAe0ML4iKb0ypaIiycjA0MIA6D9ToFoliNrkjPy89MJMoOqCoszcxKLKeDNzExNLAyMLU2MA-GFjfw |
| ClassificationCodes | TK124 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| Copyright_xml | – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| DBID | 2RA 92L CQIGP W92 ~WA 2B. 4A8 92I 93N PSX TCJ |
| DatabaseName | 维普期刊资源整合服务平台 中文科技期刊数据库-CALIS站点 中文科技期刊数据库-7.0平台 中文科技期刊数据库-工程技术 中文科技期刊数据库- 镜像站点 Wanfang Data Journals - Hong Kong WANFANG Data Centre Wanfang Data Journals 万方数据期刊 - 香港版 China Online Journals (COJ) China Online Journals (COJ) |
| DatabaseTitleList | |
| DeliveryMethod | fulltext_linktorsrc |
| DocumentTitleAlternate | Study on Thermal Contact Resistance Estimation in Planar Medium |
| DocumentTitle_FL | Study on Thermal Contact Resistance Estimation in Planar Medium |
| EndPage | 34 |
| ExternalDocumentID | xbgydxxb201801005 674490285 |
| GroupedDBID | 2RA 92L ALMA_UNASSIGNED_HOLDINGS CDYEO CQIGP W92 ~WA 2B. 4A8 92I 93N AFKRA BENPR CCPQU PHGZM PHGZT PIMPY PMFND PSX TCJ |
| ID | FETCH-LOGICAL-c615-16acc1aee014669b4918d3f3970387ce69bdfc06184d08afb080dffeba2b17493 |
| ISSN | 1000-2758 |
| IngestDate | Thu May 29 04:00:28 EDT 2025 Wed Feb 14 10:01:03 EST 2024 |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 1 |
| Keywords | 接触热阻 边界元法 thermal contact resistance boundary element method 二维热传导 最小二乘法 least square method two-dimensional conduction conjugate gradient method 共轭梯度法 |
| Language | Chinese |
| LinkModel | OpenURL |
| MergedId | FETCHMERGED-LOGICAL-c615-16acc1aee014669b4918d3f3970387ce69bdfc06184d08afb080dffeba2b17493 |
| Notes | Wen Jingjing, Li Leitao, Liu Chengwu, Wu Bin （ School of Astronautics, Northwestern Polytechnical University, Xi＇an 710072, China） thermal contact resistance; two-dimensional conduction; boundary element method; conjugate gradient method; least square method 61-1070/T Thermal contact resistance（TCR） is one of the important parameters in heat transfer problems of engineering, and it is necessary to estimate the value of TCR effectively in many engineering fields. Considering the limitation of current estimation methods of TCR such as only focusing on one-dimensional thermal conduction, getting a single value of TCR merely, and the temperature measuring points only being placed in temperature gradient direction of mediums, boundary element method （BEM） and conjugate gradient method are combined to estimate the TCR in planar mediums. The value of TCR in relation to the position of contact interface line is estimated with this method, and the positions of temperature measuring points can be selected randomly because |
| PageCount | 7 |
| ParticipantIDs | wanfang_journals_xbgydxxb201801005 chongqing_primary_674490285 |
| PublicationCentury | 2000 |
| PublicationDate | 2018 |
| PublicationDateYYYYMMDD | 2018-01-01 |
| PublicationDate_xml | – year: 2018 text: 2018 |
| PublicationDecade | 2010 |
| PublicationTitle | 西北工业大学学报 |
| PublicationTitleAlternate | Journal of Northwestern Polytechnical University |
| PublicationTitle_FL | Journal of Northwestern Polytechnical University |
| PublicationYear | 2018 |
| Publisher | 西北工业大学 航天学院,陕西 西安,710072 |
| Publisher_xml | – name: 西北工业大学 航天学院,陕西 西安,710072 |
| SSID | ssib001129888 ssib046626106 ssib036436219 ssib044765131 ssib044604139 ssib051375596 ssib002258180 ssib059104284 |
| Score | 2.1335015 |
| Snippet | ... TK124;... |
| SourceID | wanfang chongqing |
| SourceType | Aggregation Database Publisher |
| StartPage | 28 |
| SubjectTerms | 二雏热传导 共轭梯度法 接触热阻 最小二乘法 边界元法 |
| Title | 二维两层介质界面接触热阻的反辨识研究 |
| URI | http://lib.cqvip.com/qk/91782X/201801/674490285.html https://d.wanfangdata.com.cn/periodical/xbgydxxb201801005 |
| Volume | 36 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnR1Na9RQ8FF78iKKirUqRXynEsnHy8t7x5dsliLU0yq9LXnZZHvaqt3C2oMHFS9WvSiIIIj4UQ8iQhFxwV-zNdt_4czb7G5WPdRewmTezLyZTD5m3seEkCsyEX7u6RTSVM0s5tmpJUSaWgkXWS4YBAgJDuivXucrN9i1NX9t7tjNyqqlra6-mm7_c1_JUbwKOPAr7pL9D89OhAICYPAvHMHDcDyUj2nMaKioiGgc0DCkITMYQRUAPg0dKlyDCakIaSyQQAkklr7hklTWqAIaTkVMlY80KqCKI43wqKoZGoESkAv6MpJFnYqaERgbgcAFGMOlbCqZASQNeTX2NWSgVd1IiKgMjJKB6deoDfIBA8or0wS9oyYTAJRUQDy-RxCBtkoEJPY2AaokYCHYhgp5yI9MgAynJKCMQBtRvjTqSarUHyTSNlcXOIEqqo6VlC92vK-PZuEysoEKatImK0ZLtAhc5EYlLP1JN8szHaoY9XcjrKQUVEZzcW7FcoNR7frx52hUD2bmsSu_LaISpZQjwLOlwnu6fbfV62k0HfJsU9oXAlBc6bh6L55GyRDjiWqVOtfHHf_jcw-CVO5Oq_wxxm1WKR7LWMB9Zzp5zDgkxZXJemgLIE-dnkNECkmuWd8xNhgrmaxvdNq3IT4z2-U6edJpVyK7xklyokzJltTo-TpF5rbXTxM--LFT9PcG39_tf70_6D8e7u0WL3YOXr_99fT98OOH4sHng5f94tXD_WdPhj93h18eFW-eF5--nSGNetyIVqzyHyNWCrG85fAkTZ0ky7CGEpeaSUe0vByCdFzWkWaAauWpjX9FatkiyTUkWK08z3TiasjlpXeWzHc2Otk5suS4qfSwvCQPHBbIDMtgeTnTWtgsYba7QBYnJjdvjUrJNHnAGNZP8hfI5fIiNMsXzGbzL3eePwzRIjmO8GiY8AKZ797Zyi5C4NzVl8xt8BuUB5Dy |
| linkProvider | ISSN International Centre |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E4%BA%8C%E7%BB%B4%E4%B8%A4%E5%B1%82%E4%BB%8B%E8%B4%A8%E7%95%8C%E9%9D%A2%E6%8E%A5%E8%A7%A6%E7%83%AD%E9%98%BB%E7%9A%84%E5%8F%8D%E8%BE%A8%E8%AF%86%E7%A0%94%E7%A9%B6&rft.jtitle=%E8%A5%BF%E5%8C%97%E5%B7%A5%E4%B8%9A%E5%A4%A7%E5%AD%A6%E5%AD%A6%E6%8A%A5&rft.au=%E6%B8%A9%E6%99%B6%E6%99%B6&rft.au=%E6%9D%8E%E7%A3%8A%E6%B6%9B&rft.au=%E5%88%98%E6%89%BF%E9%AA%9B&rft.au=%E5%90%B4%E6%96%8C&rft.date=2018&rft.pub=%E8%A5%BF%E5%8C%97%E5%B7%A5%E4%B8%9A%E5%A4%A7%E5%AD%A6+%E8%88%AA%E5%A4%A9%E5%AD%A6%E9%99%A2%2C%E9%99%95%E8%A5%BF+%E8%A5%BF%E5%AE%89%2C710072&rft.issn=1000-2758&rft.volume=36&rft.issue=1&rft.spage=28&rft.epage=34&rft.externalDocID=xbgydxxb201801005 |
| thumbnail_s | http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fimage.cqvip.com%2Fvip1000%2Fqk%2F91782X%2F91782X.jpg http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fxbgydxxb%2Fxbgydxxb.jpg |