العودة   Forums > مواضيع منقولة من مواقع اخرى

إضافة رد
أدوات الموضوع انواع عرض الموضوع
قديم 01-25-2013, 12:19 PM
rss rss غير متواجد حالياً
Senior Member
تاريخ التسجيل: Sep 2012
المشاركات: 721,910
افتراضي DEsign Please...Help needed

DEsign Please...Help needed
Question 1
A canal operating company is proposing to build an inclined plane to lift boats between two points with a vertical height difference of 55m. Currently the boats have to travel a distance of 6km through 19 canal locks to achieve the same vertical height.
An example of a successful inclined plane at St Louis/Arzviller, in **rth East France, will be used as the model for the design. Details of this inclined plane are given in the following web sites:

The company proposes to lift a moving canal lock which has the same dimensions as the existing static locks on the canal. The lock is supported on 32 wheels across 4 axles which run on rails. The moving canal lock will be counterbalanced by two counterweights attached to the moving canal lock by two groups of 14 cables winding onto two winch drums at the top of the structure. The winch drums are powered by two electric motors which power the start of the lift and control the speed of the lock or counterweight in its descent.
Initial design work has been completed which proposes that:
When descending the incline the moving canal lock is 25T heavier than the total mass of the counterweights and when ascending the incline the moving canal lock is 25T lighter than the total mass of the counterweights.
The moving lock is sealed at either end by a solid steel plate forced onto neoprene seals by hydraulic rams exerting 5T pressure

(i) check the calculation work of the canal company. You must present to the canal company a set of calculations to confirm :
(a) The linear length of the canal track associated with the proposed angle of the incline
(b) The velocity of the moving canal lock
(c) The water saving achieved per lift compared to original ****** of locks
(d) The cost of each lift]
(ii) Design a solution to the worst case disaster situation where a barge carrying 300T of fuel oil suffers a catastrophic hull failure and empties its load into the moving lock.
Your solution must
(a) Have minimal impact on the surrounding environment
(b) Achieve minimal interference to the **rmal operation of the canal
(c) Allow >90% recovery of the fuel oil
(d) Include calculation to support the solution []
رد مع اقتباس
إضافة رد

أدوات الموضوع
انواع عرض الموضوع

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

BB code is متاحة
كود [IMG] متاحة
كود HTML معطلة

الانتقال السريع

الساعة الآن 12:21 PM

converter url html by fahad


Powered by vBulletin® Copyright ©2000 - 2021, Jelsoft Enterprises Ltd. TranZ By Almuhajir
Adsense Management by Losha
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47