baseball bat sweet spot physics

endobj Experience. The handle end of the bat is at the right, and the barrel end is at the left. /N 7 0 R 21 0 obj /P 11 0 R A bat vibrating at its fundamental frequency (above, in black) has a node of zero vibration about 6 1/2 in. 15 0 obj 9 0 obj /P 4 0 R /N 13 0 R endobj >> That's physicist talk for the point where the ball's impact causes the smallest shock to your hands. /V 19 0 R /V 13 0 R The second bending mode has three nodes, about 4.5 inches from the barrel end, a second near the middle of the bat, and the third at about the location of a right-handed hitter's left hand. 66 —9–, 772–779 —1998–⁄ Robert K. Adair Department of Physics, Yale University, P.O. SSB Baseball. Physics Q&A Library A baseball bat has a "sweet spot" where a ball can be hit with almost effortless transmission of energy. /P 20 0 R References /V 21 0 R Our patent pending, SSB28 bat and plastic baseball combo. Every Time! %���� << endobj Although most baseball players may not know the deep details, they usually understand that it is not just the skill and effort they put into their swing, but also the specifications of their baseball bat which will impact the success of the hit. /N 24 0 R >> 19 0 obj /V 22 0 R >> Physics of Baseball & Softball. 1 Citations; 1.5k Downloads; Abstract . When excited by an impact force, such as a baseball striking the bat, all of these modes, (as well as some additional higher frequency modes) are excited and the bat vibrates. A careful analysis of baseball dynamics shows that this special spot is located at the point where an applied force would result in pure rotation of the bat about the handle grip. /Title (Untitled) SSB Spaseball. 16 0 obj << /V 7 0 R There are many definitions for what constitutes the "Sweet Spot" on a baseball bat. /Length 996 Physics Baseball "sweet spot"?new? /R [316 73 572 791 ] /V 16 0 R [6] J. R. Fricke, "Lodengraf Damping - An Advanced Vibration Damping Technology," Sound and Vibration, 34(7) 22-27 (2000), The animations at left show the first three bending modes of a freely supported baseball bat. These animations were obtained from a modal analysis experiment. Or, as Ryan Zimmerman, the third baseman for the Washington Nationals, describes it: "Every ball I've hit that I haven't felt, I knew I hit well." Third bending mode (1252 Hz). >> >> PbLSZTLEE(8E@'*1mg_*eTnN*;*'V3+gm-EEetX%;Bo$ur2ss*N`.-!.kG_q6GDD' /Filter /LZWDecode Where is the sweet spot on a baseball bat and how do you find it? /P 4 0 R So, while the sweet zone is wider, the resulting vibration for impacts outside of this zone is actually worse for this aluminum bat. >> /N 25 0 R • All of this is verified in actual games with high speed video. << Baseball > Sweet Spot Maintained by Dr. Space-like weight. endobj /P 26 0 R In addition, the vibration amplitude felt by the hands is much higher for a single-walled aluminum bat than it is for a wood bat. The fundamental bending mode has two nodes, or positions of zero displacement). The spot is close to the centre of percussion (COP) for a freely supported bat, so it was thought at one time that the sweet spot might be associated with the COP. /V 18 0 R This was long thought to be the bat's sweet spot. 12 0 obj This is difficult to verify, because of the variety of sweet spot definitions. 2 0 obj November 2, 2019 | by | @BatDigest. A modal analysis software package (STAR Modal 5.2) was used to curve fit the FRFs so as to determine mode shapes, frequencies and damping constants. 9-d\DA=cZ0Q>gIM$$;cd2O@&a;X,Nn_aP(]I1aRc(K1^ue> Just what makes the "sweet spot" sweet is the focus of Dr. Dan Russell's seminal research into the physics of composite baseball and softball bats. https://www.education.com/.../article/the-physics-of-cheating-in-baseball stream /Height 99 Rod Cross, Physics of Baseball & Softball (Springer, 2011) Robert G. Watts and A. Terry Bahill, Keep Your Eye on the Ball: Curve Balls, Knuckleballs, and Fallacies of Baseball, revised ed. Another node exists about 6 inches from the handle end (both nodes are identified by the black dots in the animation). /P 8 0 R BAT & BASEBALL COMBO. Simply the best backyard, plastic bat available! 22 0 obj [2] R. Cross, "The sweet spot of a baseball bat," American Journal of Physics, 66(9), 771-779 (1998) /V 3 0 R >> The sweet zone (distance between nodes for modes 1 and 2) is wider for the aluminum bat than it is for the two wood bats. The physics of the three sweet spots of a baseball bat is discussed and the location of the ball impact point on the bat that leads to maximum ‘‘power’’ (greatest batted ball speed) is determined. This is the location of the bat that is generally regarded as the best spot for hitting the ball. >> One of the definitions of the "sweet spot" is the location of the node at the barrel end of the bat. All of these are needed to hit a baseball at the Major League level. (7Boo^^S:71(MN]ZQX/+Cbu.lK"p74pe1T%s.DY%&\1TdJhr54.M9au6>79n6`Q:4 13 0 obj Strike the bat with the supplied stick at the location of the level of the pendulum bob. Physics Baseball "sweet spot"? [1] H. Brody, "The sweet spot of a baseball bat," American Journal of Physics, 54(7), 640-643 (1986) Second bending mode (670 Hz) 29 0 obj If you hit a baseball closer to the bat's handle than to the center of percussion, you'll feel a slight force pushing the handle back into the palm of your top hand. << /R [316 73 572 791 ] Before we take a look at some of these definitions of the sweet spot, I should mention that bat manufacturers often advertise that aluminum bats have a wider sweet spot than do wood bats, or that a particular model of bat is more forgiving for hits away from the sweet spot than competetor models. gF/(+GaKo$qneLWDrQ#;5\S(\$q'LM9bYJX9N;hHO_e;>`Y"/'J:I~> /R [52 74 308 585 ] /N 27 0 R A careful analysis of baseball dynamics shows that this special spot is located at the point where an applied force would result in pure rotation of the bat about the handle grip. /P 17 0 R 7 0 obj It turns out there's a lot of physics that goes into the sweet spot on a baseball bat! From a player's viewpoint, the sweet spot is the place on the bat barrel where the contact between bat and ball results in the best hit - the ball leaves the bat with the greatest speed … endobj << @L`YKUJNGBP\poR=_;Dl'P(T >> Major League Physics Dedicated to the learning and teaching of physics through baseball. Piezo dampers take the sting out of swing," Machine Design, 70(15), 46-47 (August 20, 1998) The various supposed sweet spots effectively add up to a sweet zone, about two inches wide, right on the meat of the bat. << << 24 0 obj endobj A baseball bat has three "sweet spots"; one of them is called its "center of percussion" (COP). >> >> /R [316 74 572 585 ] Sweet Spot of Baseball Bat # 3A15.50 : Description: A baseball bat and a simple pendulum are suspended next to each other. Concentration. Thank you so much for watching this video! [5] "Batter up! /N 12 0 R endobj /V 5 0 R endobj In fact, if the ball strikes the bat exactly on the ``sweet spot'' then the hitter is almost unaware of the collision. /Length 459 Backyard ball just became Major … The bat will recoil more at this location. First Online: 24 January 2011. << J,g]g+e/h_!_gCtO=0f)$P%cIi8Zdfc5&3j_8$7g. %PDF-1.1 However, the natural damping in the aluminum bat is so small that when a freely-supported bat is struck an impact at the barrel, the aluminum bat continues vibrating more than 10-times as long as a wood bat. /Gamma [1.8 1.8 1.8] /P 23 0 R ] 18 0 obj SCIENCE HAS A SWEET SPOT FOR BASEBALL BASEBALL A PHYSICS PASTIME. >> SCIENTISTS DON'T CARE IF THEY EVER GET BACK. 6 0 obj By Jeremy Manier Tribune Staff Writer April 3, 2000 The instant when a baseball springs off a wooden bat may rank as the defining experience of American sports--a moment so laced with adrenaline and sentiment it would seem immune to any scientific … /R [316 73 572 791 ] These vibrational modes. To squarely hit a fastball, everything has to be perfect. /R [52 611 308 791 ] /I << Good eyesight. 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