n smikle wrote:Are these tests more of trial and error?
hardingfv32 wrote:"It is a bit like mass dampers, where its first use was fairly benign when it came to aerodynamics. But the more it got developed the more extreme the designs were. There were four, five, six mass dampers on the car, and they were clearly being used for aero reasons."
DaveW wrote:An interesting article on the use of TMD's in various applications may be found here.
Tuned mass dampers are widely used in production cars, typically on the crankshaft pulley to control torsional vibration and bending modes of the crankshaft, on the driveline for gearwhine, and other noises. They are also used on the exhaust, on the body and on the suspension. Almost all cars will have one mass damper, some may have 10 or more.
Jeffsvilleusa wrote:Could this be what hardingfv32 was after? Anyone know why a production car would have 10 mass dampers? Could it be the case on an F1 too?
n smikle wrote:I am not aware of any BMW's with mass dampers (and I am a BMW fan) . Though an argument can be made for the exhaust pipe since it is free to vibrate.
A mass damper is easy to spot because it usually is a freely vibrating mass that is rigidly fixed to the object you want to dampen.
you will probably find more of them, if you keep looking
Z3 [E36 2.8] rear "bumper weigth" 6.4-7kg depending on side
bill shoe wrote:What if you take a car with an effective conventional suspension and put a TMD system on the sprung weight, perhaps attached to the upright.
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