بصراحة حاولت بكل الطرق اترجمها ..,, بس ما رح تكون مفهومة .. انا آسف بس الحقيقة إن الأحصنة لها تأثير مباشر على (( التورك )) أو العزم سواء في (( الرفع \ السحب \الجر )) وتأثير الحركة أو القوة !!! بالنسبة لتحويل القوة التي هي في خط مستقيم !!
حيث تحب هذة القوة أو الطاقة بنسبة ( كل قدم طولية الى 10 باوندات ) اما في المحرك فتحسب القوة اناتجة من الدوران (( 6.25 قدم لكل 10 باوند ) اي ان الدوران المرفقي (( أو القوة الناتجة من الدوران )) أعلى من القوة الناتجة عن الخط المستقيم .
اليكم هذة المعادلات والمبسطة .
You can skip this section if you already have a strong understanding of the principles of Horsepower and Torque. If you understand completely the following 3 statements then skip
- Force is a measurement of pressure applied to an object. Force does not require the object to move. Torque is a measurement of force (ft-lb)
- Work is force in motion. For work to be performed the object must move. The required information to measure work is the weight of the object and the distance moved. Work is measured in pound-feet (lb-ft). A dyno measures torque as work.
- Power is work over time. To measure power you must already have an accurate measurement of work and the time required for the work to be performed.
Below is his explanation (used without permission):Work Explained:
Force is a pushing or pulling action of one body against another. Depending on the resistance to the application of force, it may or may not result in movement. Say you try to push on a stalled car with 125 pounds of force, but it remains stuck in the mud. You've exerted force, but no movement has occurred because the car (being heavier than you) has too much resistance.
If force is applied and movement does occur, you have performed work, or the movement of an object from one position to another. For example, if you use a hoist to lift a 600-pound engine 6 feet in the air the work done would be 6 feet x 600 pounds or 3,600 foot-pounds (ft-lb).
Torque Explained:
By definition, work is calculated as a vector force, exerted in a straight line. But engines (as well as nuts and blots when they are tightened or loosened) rotate around an axis. The expression of this rotational or twisting force is called "torque", which is measured in units of force times distance from the axis of rotation. If you have a 1-foot-long wrench and you exert a force of 10 pounds on the end of it you then apply a torque of 10 pound-feet (10 lb-ft). If the wrench were 2 feet long, the same force would apply a torque of 20 lb-ft. When an engine is said to make "200 lb-ft of torque", it means that 200 pounds of force on a 1-foot lever is needed to stop its motion.
To avoid confusion in the U.S. measurement system, the unit of measure for torque is the pound-foot (lb-ft), while for work it is to foot-pound (lb-ft). Remember, work and torque aren't exactly the same. Movement must occur for work to be done, but that doesn't necessarily hold true for torque: Exerting 10 lb-ft of torque on a bolt that's already been tightened to 50 lb-ft won't produce any movement.
If torque does produce movement-as is the case with your engine unless it's locked up- any "distance" traveled as the crank rotates is equal to the circumference of a circle, not a straight line ... so 1 lb ft of torque produced during one revolution actually is about equal to 6.28 ft-lb of work or mechanical energy. Huh? Just recall your geometry: Fin a circle's circumference by multiplying its radius (r) by 2pi. With a 1-foot lever2*pi*r * 1 lb-ft of torque =
2x3.1416 x 1-foot lever x 1 lb-ft =
6.2832 ft-lb of work
Power Explained:
Torque and work measurements tell us how much has been accomplished, but provides no clue how fast a given amount of work (or torque) is done. That's the job of power, an expression of the rate or speed at which work is performed. The more power that is generated, the more work is done in a given time-period.
Suppose it takes a constant 100lb-ft of torque to spin a nut onto a blot one complete revolution. Your girlfriend takes 10 seconds to do this, You, being a real stud (pun intended), take only 5 Seconds to perform the same task. you would be twice as powerful, because you performed the same work in half the time.
In the U.S. system, power is expressed as "horsepower" (HP). One hp is the amount of power it takes to perform 33,000 ft-lb of work in 1 minutes, as based on 18th century engineer James Watt's observations of the work performed by a strong horse as it operated a gear driven mine pump by pulling a lever connected to the pump (sounds like a dyno, doesn't it?).
Because 1 hp represents the production of 33,000 ft-lb of mechanical energy per minute, horsepower equals ft-lb/minute divided by 33,000, as expressed by:ft-lb per minute D x F
hn = ------------------ = ----------
33,000 33,000 x t
Here, D is the distance in feet the weight is to be moved; F, the force in pounds required to move the weight; and t, the time in minutes required to move the weight (F) through the distance (D).
An engine dynamometer measures torque (lb-ft), not mechanical energy (ft-lb); and an engine's "time" is expressed in revolutions per minute (RPM). Since 6.28 ft-lb of work is about equal to 1 lb-ft of torque, you can substitute:torque x 6.28 x rpm
hp = ----------------------
33,000
torque x (6.28/6.28) x RPM
= ----------------------------
(33,000 / 6.28)
torque x rpm
= ---------------
5,252
The result is the classic equation with which we are all familiar.
What the Math Tells Us:
Looking at this horsepower equation, several relationships are apparent. First, knowing that dividing the same number by itself cancels it out (because the product is "1"), it's obvious that at 5,252 rpm, the horsepower and torque values are always equal. That's why an engine's torque and horsepower curves always cross at 5,252.
Second, assuming engine displacement is fixed, raising the engine's operating rpm range is the most effective way to make big naturally aspirated horsepower numbers. Suppose an engine makes 400 lb-ft at 3,000 rpm. The equation tells us that at 3,000 rpm it would produce 228hp. But if the engine made 400 lb-ft at 6,000 RPM, it would produce 457 hp. It's true that doubling the torque output to 800 lb-ft at 3,000 rpm would also yield 457 hp, but that large an increase on a given displacement engine is unlikely in the real world without forced induction.
(the article continued but for the purpose of this page I am not including the remainder of the article. I encourage you to find the magazine and read the remainder)
تحياتي لكم جميعا ومزيد من التقدم والعطاء .
يعطيك العافيه اخوي علي المعلومات الحلوه ...
أشكرك أخي على مبادرتك وطرحك للموضوع بصراحه موضوع حساس
حياك الله عزيزي ...
أبغى أصحح شي قلته بالنسبه للسعة المحرك فهذي ليس بشرط أنه كل ماكبر كل ماصار أقوى
لا حسب أعتقادي أن القوه الناتجه ((الأحصنه & العزم)) هي اللي تحدد قوة السياره وليس بشرط انه كل مازادت
((الأحصنه & العزم)) زاد إقلاعها طبعا لا فيه حاجات ثانيه مهمه مثل الوزن وكبر حجم الإطارات وأشياء
أخرى لها تأثير على تقليص قوة ((الأحصنه & العزم)) الواصله للكفر
ولله اخوي شكلك ما قراء الموضوع عدل ؟؟؟ :confused:
الاحصنه و العزم من اهم الامور و بعدين تجي نسب الدفرنش و بعدين انسيابيه السياره و بعدين وزن السياره بعدين السسبنشن و بعدين .....
و كل ما زاد حجم زاد العزم طبعاً بنسبه للكمبرشن ريشيو ..
ثاني شي المحرك كل ما كبر كل ما سهل خروج الاحصنه و العزم عكس المحركات الصغيره ...
أبغاك تدقق بللي مكتوب فوق وبالعقل تاتقول أن الـ SS أقوى
صح أقوى لكن هههههههههه مانقول أسرع يبطي جنط يجي حول تسارع المتسوبيشي
تبغون التسارع بس قولو مشاءالله قبل
الكابـSSــريس 7 ثواني من 0 -- 100
والميتسوبيشي 5 ثواني من 0 -- 100
ولله اخوي شنو ارد عليك ادا انت تقول تسارع الكابرس 7 ثواني |10|
انا اجيبلك لومينا نفس محرك الكابرس و استوك يجيب 5.5 ثانيه و لومينا الجديد تجيب 5 ثواني طبعاً للجير التماتيك
و الجير العادي تجيب 4.5 ثانيه
و علي فكره التوب سبيد يجب اكثر من الي قاعد تقوله بدون فتح الفصله
و الشي الثاني سياره بمحرك تيربو و اخف و اصغر و تصميم رياضي و سسبشن رياضي تقارنه مع سياره عائليه
و مع هدا يتفوق عليه ؟؟؟ ها الحجم الكبير افضل وله الصغير ؟
و علي فكره هل الايفو جيبه و فك التيربو خله بدون تيربو انا اتحدي ادا جاب التسارع اكثر من 9 ثواني
و شي ثاني المحرك بدون تيربو حده حده 400 حصان او 500 كرقم خيالي اما محرك الكابرس الي تقول عليه ممكن يجيب 1500 حصان علي نفس الابلوك
:D
و مثل ما قلت اكرر مره ثانيه كل ما كبر حجم المحرك كل ما سهل استخراج الاحصنه و العزم .
