:جديد المواضيع
صفحة 3 من 18 الأولىالأولى 123456713 ... الأخيرةالأخيرة
النتائج 21 إلى 30 من 172

@@- قســـــم الهندسة البحرية -@@

  1. #21
    مشرف قسم الهندسة البحرية.

    User Info Menu

    بجد لا يفوتك هذا الشرح ل Distributed Forces ; weight & buoyancy

    --------------------------------------------------------------------------------

    ممتاز ورائع عن حساب الاحمال والقوة وقوى الطفو وعزم الانحناء والقص وتوزيع الاحمال على السفينة ادخل وشوف الباقى كمان
    واليكم الرابط .............................................. :
    http://www.usna.edu/NAOE/courses/en2...ides/chap6.ppt


    وشكرا............. اخوكم / ماهر...
    يعمل ب البور بوينت


    0 Not allowed!
    التعديل الأخير تم بواسطة Eng-Maher ; 2006-09-16 الساعة 06:28 AM


    الحمد لله

  2. #22
    مشرف قسم الهندسة البحرية.

    User Info Menu

    Smile

    بدايات العماره البحريه

    --------------------------------------------------------------------------------

    لكل مبتداء فى علوم الهندسه البحرية و عماره السفن اليكم هذا الرابط ....................... :

    http://www.usna.edu/NAOE/courses/en200/ch02.pdf
    لبدن السفينه وعزوم المساحات ومركز. lcb و lcf ,وغير ذالك من اساسيات


    0 Not allowed!
    التعديل الأخير تم بواسطة Eng-Maher ; 2007-03-01 الساعة 03:09 AM سبب آخر: تعديل اسم الموضوع


    الحمد لله

  3. #23
    مشرف قسم الهندسة البحرية.

    User Info Menu

    هيدروستاتك كيرف -خاص ب البحريين. ب التفصيل والروسومات

    --------------------------------------------------------------------------------

    كل شىء عن hydrostatic curve ب التفصيل والروسومات ..
    الرابـــــــــــــــــــــط ....................:

    http://s1.upload.sc/request/144b20a7...ea5ad2cd/owner
    مع تحياتى م/ماهر
    اضغط click to dwonload .
    2- ثم please click here.


    0 Not allowed!


    الحمد لله

  4. #24
    مشرف قسم الهندسة البحرية.

    User Info Menu

    التحليل الانشائى للسفن (ٍStability). ب الروسومات والشرح المفصل جدا.

    --------------------------------------------------------------------------------



    4.1 Introduction --
    In the last chapter we studied hydrostatics of a displacement ship. In that chapter there were only two internally produced forces and no external forces were considered. The resultant buoyant force and the resultant weight of the ship were in vertical alignment so that no moments were produced. The criteria for static equilibrium were met so that the displacement ship would forever sit motionless until external forces acted on the ship or a weight change occurred. In this chapter we are concerned with the ability of the ship to remain upright when external forces are trying to roll it over. We are mostly concerned with the transverse movement or heeling because it is nearly impossible to tip a ship end to end. Here the resultant weight of the ship is very often not in vertical alignment with the resultant buoyant force so that internal moments are produced. • First, we will study the general principle of a righting moment for a ship. We will see how the magnitude of the righting moment is a function of the heeling angle. • Second, we will show how the righting moment is effected by changes in the vertical and transverse location of the center of gravity of the ship. • Third, we will discuss how stability is affected by hull damage and learn ways to model a damaged ship. • Fourth, we will study the effects of free surface (fluids in less than full tanks or compartments) on the righting moment. • Finally, we will show the effects of a negative ****centric height on the stability of ship.

    الرابــــــــــــــــــط ..................................... :

    http://s1.upload.sc/request/be876b67...e415dccd/owner
    مع تحياتى م/ ماهر


    0 Not allowed!
    التعديل الأخير تم بواسطة Eng-Maher ; 2006-09-26 الساعة 06:20 AM سبب آخر: الرابط


    الحمد لله

  5. #25

  6. #26
    جديد

    User Info Menu

    السلام عليكم يا شباب
    هذه اول مشاركة لدي في المنتدى وانشاءالله ماكون ضيف ثقيل عليكم
    انا طالب بالهندسة البحرية واريد تقرير عن صمامات السفينة انواعها واحجامهاومواد تصنيعها ويكون من 4 صفحات ويكون بالعربي ويرجى الافادة وتقرير آخر عن السخانات داخل السفن وشكراااا على حسن تعاونكم


    0 Not allowed!

  7. #27
    عضو

    User Info Menu

    مشكور علي الجهد


    0 Not allowed!

  8. #28
    مشرف قسم الهندسة البحرية.

    User Info Menu

    دراسه حركه السفن (ship Maneuverability)..*

    Introduction Ship maneuverability is a very complex and involved subject involving the study of equations of motion involving all 6 ship movements. Analysis of these motion equations allows predictions of ship maneuverability to be made. However, many assumptions are made, so model testing is required to verify analytical results. Once built, a ship’s maneuvering characteristics are quantified during its Sea Trials. To limit the level of complexity covered in this chapter, the analytical study of the equations of motion will be ignored. However, maneuverability requirements a ship designer strives to meet will be discussed along with the devices and their arrangements that can provide them. After completing this chapter you will have an understanding of how a ship’s rudder makes a ship turn and an appreciation of other devices that improve a ship’s slow speed maneuverability.
    ************************************************** **************
    والرابط هو .................................:
    http://s1.upload.sc/request/b7a6cef1...e33bfd17/owner

    مع تحياتى eng-maher


    0 Not allowed!


    الحمد لله

  9. #29
    مشرف قسم الهندسة البحرية.

    User Info Menu

    /\*************Ship Vibration**********/\
    -----------------------------------------
    موضـــــــــــــــــــــوع كامل فــــــــــى الاهتزازات للسفن .

    *******s

    **************************
    1. Introduction 5
    2. Standards for Assessment 6
    2.1 Effect of Vibrations on Human Beings 6
    2.2 Structural Vibrations 8
    2.3 Engine and Equipment Vibrations 8
    3 Calculation of Natural Vibrations 9
    3.1 Global Structures 10
    3.2 Substructures 14
    3.3 Local Structures 20
    4. Calculation of Forced Vibrations 23
    4.1 Computation Methods 23
    4.2 Damping 24
    4.3 Excitation Forces 24
    4.4 Evaluation and Assessment 30
    5. Measurements 34
    5.1 Sensors 34
    5.2 Measurement Systems 35
    5.3 Measurement Procedures 36
    5.4 Evaluation and Assessment 37
    5.5 Practical Applications 40
    6. Conclusions 48
    7. Literature 49
    *******s
    والرابط هو .................................:

    http://s1.upload.sc/request/d40a3968...176fa035/owner

    مع تحياتى eng-maher


    0 Not allowed!


    الحمد لله

  10. #30
    مشرف قسم الهندسة البحرية.

    User Info Menu

    Smile Towing Tank Experiments Of Resistance.

    Summary
    Abstract.......................................... ................................................Er ror! Bookmark not defined.
    1 Introduction...................................... .................................................. ................................2
    2 Model Geometry.......................................... .................................................. ......................3
    3 Tests Design............................................ .................................................. ..........................3
    4 Experimental results........................................... .................................................. ...............4
    4.1 Resistance, sinkage and trim and wave profiles.......................................... ...............4
    4.1.1 Setup and experimental procedure......................................... .....................................4
    4.1.2 Resistance, sinkage and trim and wave profile results........................................... ....5
    4.2 Far field wave pattern........................................... .................................................. ....6
    4.2.1 Setup and experimental procedure......................................... .....................................6
    4.2.2 Far field wave elevation results........................................... .......................................7
    4.3 Velocity field in the boundary layer and wake.............................................. .............7
    4.3.1 Setup and experimental procedure......................................... .....................................7
    4.3.2 Results........................................... .................................................. ...........................9
    4.3.3 Vortices interaction with the hull boundary layer............................................. .........9
    4.4 Propeller plane flow analysis.......................................... ..........................................11
    5 Concluding remarks........................................... .................................................. .............11
    6 Acknowledgements.................................. .................................................. .......................11
    7 References........................................ .................................................. ..............................12
    Appendix A – Uncertainty Assessment
    A.1 Resistance, sinkage and trim and wave profiles.......................................... ......................30
    A.2 Wave elevation......................................... .................................................. .......................32
    A.2.1 Bias limit............................................. .................................................. ....................32
    A.2.2 Precision limit............................................. .................................................. ............35
    A.2.3 Global uncertainty....................................... .................................................. ...........36
    A.3 5-hole Pitot probe calibration and towing tank data processing........................................ 36
    A.4 Mean flow velocity uncertainty analysis.......................................... .................................40
    A.4.1 Elemental error sources and bias limit............................................. .........................40
    A.4.2 Error due to the mean shear............................................. .........................................41
    A.4.3 Precision limit............................................. .................................................. ............42

    ************************************************** **********
    الرابط ................................ :

    http://www.iihr.uiowa.edu/products/p...df/IIHR421.pdf
    ************************************************** ***********


    0 Not allowed!


    الحمد لله

صفحة 3 من 18 الأولىالأولى 123456713 ... الأخيرةالأخيرة

الكلمات الدلالية لهذا الموضوع

ضوابط المشاركة

  • لا تستطيع إضافة مواضيع جديدة
  • لا تستطيع الرد على المواضيع
  • لا تستطيع إرفاق ملفات
  • لا تستطيع تعديل مشاركاتك
  •