熱泵工程艾歐史密斯中國熱水器_第1頁
熱泵工程艾歐史密斯中國熱水器_第2頁
熱泵工程艾歐史密斯中國熱水器_第3頁
熱泵工程艾歐史密斯中國熱水器_第4頁
熱泵工程艾歐史密斯中國熱水器_第5頁
已閱讀5頁,還剩17頁未讀 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進(jìn)行舉報或認(rèn)領(lǐng)

文檔簡介

1、A very fast direct torque control for interior permanent magnet synchronous motors start upOriginal Research ArticleEnergy Conversion and ManagementSelection of the stator flux command in direct torque control (DTC) of permanent magnet synchronous motors is very important as it affects machine perfo

2、rmance. For steady state operation, it can help to decrease the stator current or machine losses. However, in order to get a fast torque response during motor start up, one needs to change both the stator flux angle and magnitude. In this paper, a method is presented to find the optimal voltage vect

3、ors to change both the flux angle and its magnitude that results in high speed dynamics for the torque response. The closed form formula given for the optimal voltage vector is derived based on maximizing the torque change in each sampling time. The simulation results show that the presented method

4、is superior to the conventional DTC. In other words, it is shown that the voltage vectors derived from the switching table for conventional DTC are not the optimal voltage vectors for the situation in which there is a step change in the torque command.Article Outline1. Introduction2. IPM machine mod

5、el and DTC fundamentals3. Flux command effect on machine performance4. Optimal voltage vector 4.1. Optimal voltage vector selection4.2. SVM to apply optimum voltage vector to machine5. System performance 5.1. System block diagram5.2. Simulation results6. ConclusionsAcknowledgementsAppendix A. Motor

6、dataReferencesA hybrid controller for the speed control of a permanent magnet synchronous motor driveOriginal Research ArticleControl Engineering PracticeThis paper introduces a hybrid controller (HC) which consists of a parallel connected sliding mode controller (SMC) and a neuro-fuzzy controller (

7、NFC) for the speed control of a permanent magnet synchronous motor (PMSM) drive. The aim of this study is to obtain a controller that eliminates the chattering phenomenon and provides a fast and smooth dynamic response for the speed control of a PMSM drive. Therefore, using an error band method, the

8、 system is controlled by the SMC to get a fast dynamic response in transient mode and is also controlled by the NFC to get a smooth dynamic response in steady state mode. To illustrate the performance of the proposed controller, the simulation and experimental studies are presented separately for th

9、e SMC, NFC and HC. The results are compared with each other and discussed in detail.Article Outline1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docancho

10、r=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx1 Introduction2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=

11、22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l sec2 Modeling of the PMSM drive system 2.1. HYPER

12、LINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S096706610700

13、1086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx2 Motor and inverter2.2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_

14、acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx3 Hysteresis band PWM2.3. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_o

15、rig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx4 Torque3. HYPERLINK /science?_ob=ArticleURL&_udi=

16、B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825

17、737b572d2d7d85507758fd l sec3 Design of the hybrid controller (HC) 3.1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&

18、_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx5 Design of the sliding mode controller3.2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&

19、_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx6 Design of the NFC . HYPERLINK /science?_ob=Art

20、icleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&m

21、d5=fbde9b8825737b572d2d7d85507758fd l secx7 Feedforward algorithm. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_vers

22、ion=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx8 Back propagation learning algorithm4. HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=sea

23、rch&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l secx9 Simulation and experimental results5. HYPERLINK /scienc

24、e?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=0

25、9670661&md5=fbde9b8825737b572d2d7d85507758fd l secx10 Conclusions HYPERLINK /science?_ob=ArticleURL&_udi=B6V2H-4P1G8R5-2&_user=10&_coverDate=03%2F31%2F2008&_alid=1579465201&_rdoc=22&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5703&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_versi

26、on=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0967066107001086&_issn=09670661&md5=fbde9b8825737b572d2d7d85507758fd l bibl001 ReferencesNonlinear predictive controller for a permanent magnet synchronous motor driveOriginal Research ArticleMathematics and Computers in SimulationA nonlinea

27、r predictive controller (NPC) for a permanent magnet synchronous motor (PMSM) is proposed in this paper. Its objective is high performance tracking of the rotor speed trajectory while maintaining the d-axis component of the armature current at zero. The load torque and the mismatched parameters are

28、considered to be unknown perturbations. To ensure robustness against these perturbations, a disturbance observer is designed using a new gain function, and integrated into the control law. The combination of the nonlinear predictive controller and the disturbance observer works as a nonlinear contro

29、ller. The overall closed-loop system is proved to be globally asymptotically stable depending on the design parameters. The validity of the proposed controller was tested by simulations. Satisfactory results were obtained with respect to the tracking of the speed trajectory and disturbance rejection

30、.Article Outline1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt

31、=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0005 Introduction2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_doca

32、nchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0010 Mathematical model of the PMSM3. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010

33、&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0015 Nonlinear predict

34、ive control of a PMSM 3.1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtyp

35、e=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0020 Formulation of the NPC problem3.2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_

36、cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0025 The input relative degree . HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_c

37、overDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l se

38、c0030 The input relative degree of the output y1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion

39、=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0035 The input relative degree of the output y2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_orig

40、in=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0040 The input relative degree of the PMSM outputs4. HYPERLINK /sci

41、ence?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_iss

42、n=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0045 Disturbance observer5. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C0

43、00050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0050 Stability of the closed loop system under the load torque observer6. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%

44、2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0055 Block

45、diagram of the proposed NPC for a PMSM7. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_useri

46、d=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0060 Simulation results 7.1. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_ite

47、m&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0065 Scenario 17.2. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=1

48、0%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0070 Scen

49、ario 28. HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii

50、=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l sec0075 Conclusion HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=134

51、22&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l ack001 Acknowledgements HYPERLINK /science?_ob=ArticleURL&_udi=B6V0T-50W1TF4-1&_user=10&_coverDate=10%2F31%2F2010&_alid=1579465201&_rdoc=23&_ori

52、g=search&_origin=search&_zone=rslt_list_item&_cdi=5655&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0378475410002855&_issn=03784754&md5=3a0acfdb7821b3c55ae4174f3957d0a7 l bibl001 ReferencesTorque ripple reduction in exterior-ro

53、tor permanent magnet synchronous motorOriginal Research ArticleJournal of Magnetism and Magnetic MaterialsThe paper presents torque ripple reduction in permanent magnet synchronous motor with exterior-rotor. The influence of the magnet pole arc width and the influence of the supply current waveform

54、on the torque ripple are considered in the analysis. The results of the analysis are obtained by the finite element method simulation and are verified experimentally as well. The reduction of total torque ripple at nominal load conditions less than 2% is achieved by proper motor magnet pole arc desi

55、gn and by applying the optimal stator current waveform control.Article Outline1. HYPERLINK /science?_ob=ArticleURL&_udi=B6TJJ-4JJGFHM-G&_user=10&_coverDate=09%2F30%2F2006&_alid=1579465201&_rdoc=24&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5312&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C0

56、00050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0304885306005981&_issn=03048853&md5=3b6aaa779f58fd82f0584426372d22c1 l sec1 Introduction2. HYPERLINK /science?_ob=ArticleURL&_udi=B6TJJ-4JJGFHM-G&_user=10&_coverDate=09%2F30%2F2006&_alid=1579465201&_rdoc=24&_orig=search&_origi

57、n=search&_zone=rslt_list_item&_cdi=5312&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0304885306005981&_issn=03048853&md5=3b6aaa779f58fd82f0584426372d22c1 l secx1 Method of analysis3. HYPERLINK /science?_ob=ArticleURL&_udi=B6TJJ

58、-4JJGFHM-G&_user=10&_coverDate=09%2F30%2F2006&_alid=1579465201&_rdoc=24&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5312&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&searchtype=a&_fmt=full&_pii=S0304885306005981&_issn=03048853&md5=3b6aaa779f58fd8

59、2f0584426372d22c1 l secx2 Results4. HYPERLINK /science?_ob=ArticleURL&_udi=B6TJJ-4JJGFHM-G&_user=10&_coverDate=09%2F30%2F2006&_alid=1579465201&_rdoc=24&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5312&_sort=r&_st=5&_docanchor=&_ct=13422&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&

60、searchtype=a&_fmt=full&_pii=S0304885306005981&_issn=03048853&md5=3b6aaa779f58fd82f0584426372d22c1 l secx3 Conclusion HYPERLINK /science?_ob=ArticleURL&_udi=B6TJJ-4JJGFHM-G&_user=10&_coverDate=09%2F30%2F2006&_alid=1579465201&_rdoc=24&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5312&_sort=r&

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

最新文檔

評論

0/150

提交評論