الشبابي
12-05-2004, 08:36 AM
السلام عليكم ورحمة الله وبركاته
تبعا للتطورات الاخيره التي تطرأ على هذه الشركة فقد قامت جنرال موتورز بشراء كمبيوتر من نوع سوبر كمبيوتر من اي بي ام ... طبعا هذا سعره بمئات الملايين ....
وهذا نص الخبر :
DETROIT - As General Motors pushed an aggressive schedule of product launches, it bumped up against its limited capability to do crash testing.
The solution? GM bought a supercomputer that gives it capability approaching that of national scientific laboratories. The added power means GM will continue its vehicle-development trend of building fewer prototype vehicles and doing fewer crash tests.
But as GM moves more of its testing to computer simulations, it raises a touchy question: Are physical crash tests necessary? Federal regulations require them, but computer experts say they can learn more from simulations.
Physical testing is viewed increasingly as a way of confirming results gained from virtual crash tests.
Bob Kruse, executive director for vehicle integration, says GM will cut product development time and costs using virtual tests.
The trend was seen in the new Kappa architecture used for the Pontiac Solstice, due in showrooms next year.
GM trimmed development time by skipping one prototype and relying instead on testing via computer simulation.
"We will be looking for opportunities to reduce builds," Kruse says.
The supercomputer is twice as powerful as GM's previous supercomputer, according to Frank Roney, managing director of the IBM account for GM.
GM officials say the system will be used mostly to do safety testing, eliminating much of the need to build and crash vehicles early in development. That will save time as well as roughly $500,000 per crashed vehicle.
But Kruse adds that GM will continue to do physical tests, if only because federal regulations require them.
Joseph Kanianthra, associate administrator in vehicle safety research for the U.S. Department of Transportation, says federal regulators agree that computerized testing is valuable - up to a point.
Government safety researchers conduct simulations themselves, he says.
"Otherwise, we would have to do a lot of crash tests, which are very expensive," Kanianthra says.
Automakers have approached the transportation department about certifying vehicles with computerized tests, he says. But regulators distinguish between use as a research tool and a test that allows a vehicle to be safety-certified.
Kruse says GM isn't pushing to drop physical crash tests: "I don't see that on the horizon."
But, he says, computerized testing has become highly reliable as researchers tweak the system to eliminate discrepancies with physical tests.
The supercomputer will allow GM to add tests, such as for acoustics and brake cooling.
GM will move more of its aerodynamic and thermal testing to computer simulations as well, Kruse says. Again, GM will cut development time and save money.
Simulated crash tests bring big savings. Computers allow GM to do a wider variety of tests than if it had to build, crash and analyze physical vehicles.
"The virtual world lets us evaluate many more situations than you can in the real world," Kruse says.
GM would not reveal the cost of the new supercomputer, which can perform 9 trillion calculations a second. The system is being installed and will serve North America primarily, but GM will install similar systems elsewhere.
It is necessary equipment in today's environment of quick product development schedules and numerous niche vehicles, Kruse says.
"We would not be able to support the product schedule if we had to rely exclusively on physical barrier testing," he says.
"I just do not have enough physical capacity to do that."
طبعا هذا الجهاز بيوفر الكثير على الشركة بحيث ان جميع عمليات التصادم وحساب الاضرار ستكون بالكمبيوتر ويقوم بها برنامج محاكاة وهذا بيوفر عليهم الكثير من الجهد والوقت والفلوس طبعا وبيوفر تقريبا 500 الف دولار للسيارة الوحدة ...
وهذا الجهاز قادر على القيام بـ 9 مليار امر في الثانية الوحدة ( راح كمبيوترك خرطي ياماجد :) ) ...
ومن المميزات الحلوة ان هذا الجهاز محاكاته للواقع قريبة بشكل قريب منه حتى انه بيساعدهم بأشياء كثيره منها على سبيل المثال يقدر يحسب درجة حرارة المكابح وقت الكبح ... طبعا هذا في ليس على الواقع وانما كله على الكمبيوتر ...
طبعا النتائج بتكون كأنك سويت العملية في الواقع ، وهذا ليس اول كمبيوتر فقد كان هناك كمبيوتر لدى جنرال موتورز قبل كذا ولكنه لم يكن ليقوم بهذه المهمات وهذا الجديد اقوى بمرتين من القديم ....
ومع ذلك ستقوم جنرال موتورز بعمل بعض التجارب للتأكد من النتائج من جهه و لأن الحكومة تلزمهم بهذه التجارب ...
اخوكم الشبابي
تبعا للتطورات الاخيره التي تطرأ على هذه الشركة فقد قامت جنرال موتورز بشراء كمبيوتر من نوع سوبر كمبيوتر من اي بي ام ... طبعا هذا سعره بمئات الملايين ....
وهذا نص الخبر :
DETROIT - As General Motors pushed an aggressive schedule of product launches, it bumped up against its limited capability to do crash testing.
The solution? GM bought a supercomputer that gives it capability approaching that of national scientific laboratories. The added power means GM will continue its vehicle-development trend of building fewer prototype vehicles and doing fewer crash tests.
But as GM moves more of its testing to computer simulations, it raises a touchy question: Are physical crash tests necessary? Federal regulations require them, but computer experts say they can learn more from simulations.
Physical testing is viewed increasingly as a way of confirming results gained from virtual crash tests.
Bob Kruse, executive director for vehicle integration, says GM will cut product development time and costs using virtual tests.
The trend was seen in the new Kappa architecture used for the Pontiac Solstice, due in showrooms next year.
GM trimmed development time by skipping one prototype and relying instead on testing via computer simulation.
"We will be looking for opportunities to reduce builds," Kruse says.
The supercomputer is twice as powerful as GM's previous supercomputer, according to Frank Roney, managing director of the IBM account for GM.
GM officials say the system will be used mostly to do safety testing, eliminating much of the need to build and crash vehicles early in development. That will save time as well as roughly $500,000 per crashed vehicle.
But Kruse adds that GM will continue to do physical tests, if only because federal regulations require them.
Joseph Kanianthra, associate administrator in vehicle safety research for the U.S. Department of Transportation, says federal regulators agree that computerized testing is valuable - up to a point.
Government safety researchers conduct simulations themselves, he says.
"Otherwise, we would have to do a lot of crash tests, which are very expensive," Kanianthra says.
Automakers have approached the transportation department about certifying vehicles with computerized tests, he says. But regulators distinguish between use as a research tool and a test that allows a vehicle to be safety-certified.
Kruse says GM isn't pushing to drop physical crash tests: "I don't see that on the horizon."
But, he says, computerized testing has become highly reliable as researchers tweak the system to eliminate discrepancies with physical tests.
The supercomputer will allow GM to add tests, such as for acoustics and brake cooling.
GM will move more of its aerodynamic and thermal testing to computer simulations as well, Kruse says. Again, GM will cut development time and save money.
Simulated crash tests bring big savings. Computers allow GM to do a wider variety of tests than if it had to build, crash and analyze physical vehicles.
"The virtual world lets us evaluate many more situations than you can in the real world," Kruse says.
GM would not reveal the cost of the new supercomputer, which can perform 9 trillion calculations a second. The system is being installed and will serve North America primarily, but GM will install similar systems elsewhere.
It is necessary equipment in today's environment of quick product development schedules and numerous niche vehicles, Kruse says.
"We would not be able to support the product schedule if we had to rely exclusively on physical barrier testing," he says.
"I just do not have enough physical capacity to do that."
طبعا هذا الجهاز بيوفر الكثير على الشركة بحيث ان جميع عمليات التصادم وحساب الاضرار ستكون بالكمبيوتر ويقوم بها برنامج محاكاة وهذا بيوفر عليهم الكثير من الجهد والوقت والفلوس طبعا وبيوفر تقريبا 500 الف دولار للسيارة الوحدة ...
وهذا الجهاز قادر على القيام بـ 9 مليار امر في الثانية الوحدة ( راح كمبيوترك خرطي ياماجد :) ) ...
ومن المميزات الحلوة ان هذا الجهاز محاكاته للواقع قريبة بشكل قريب منه حتى انه بيساعدهم بأشياء كثيره منها على سبيل المثال يقدر يحسب درجة حرارة المكابح وقت الكبح ... طبعا هذا في ليس على الواقع وانما كله على الكمبيوتر ...
طبعا النتائج بتكون كأنك سويت العملية في الواقع ، وهذا ليس اول كمبيوتر فقد كان هناك كمبيوتر لدى جنرال موتورز قبل كذا ولكنه لم يكن ليقوم بهذه المهمات وهذا الجديد اقوى بمرتين من القديم ....
ومع ذلك ستقوم جنرال موتورز بعمل بعض التجارب للتأكد من النتائج من جهه و لأن الحكومة تلزمهم بهذه التجارب ...
اخوكم الشبابي