>> 25 0 obj >> 7 0 obj One is about 6-1/2 inches from the barrel end close to the sweet spot of the bat. >> >> This is the location of the bat that is generally regarded as the best spot for hitting the ball. The various supposed sweet spots effectively add up to a sweet zone, about two inches wide, right on the meat of the bat. << from the barrel end (Node 1). After measuring every barrel in the 2018 lineup of baseball bats, and categorizing them by type and length, we have found the Easton Ghost X as the bat with the largest barrel in more categories than any other. endobj �5�P8$ �BaP�R��+"dUk�bQ�]Y�H`P�. Box 208121, New Haven, Connecticut 06520-8121 ~Received 23 October 1998; accepted 11 May 2000! In order to determine how each of the sweet spots influences the ‘‘feel’’ of the bat, measurements were made of the impact forces transmitted to the hands. 13 0 obj >> Experience. PbLSZTLEE(8E@'*1mg_*eTnN*;*'V3+gm-EEetX%;Bo$ur2ss*N`.-!.kG_q6GDD' /V 9 0 R Official size and feel! Biggest Sweet Spot | 2018 BBCOR Bat Barrel Sizes | JBR. >> /P 17 0 R Thank you so much for watching this video! Physics of Baseball & Softball. Players know they've engaged the sweet spot when their hands feel no sting during the bat-ball collision. November 2, 2019 | by | @BatDigest. /P 14 0 R J. Phys. Physics Q&A Library A baseball bat has a "sweet spot" where a ball can be hit with almost effortless transmission of energy. Authors; Authors and affiliations; Rod Cross; Chapter. Piezo dampers take the sting out of swing," Machine Design, 70(15), 46-47 (August 20, 1998) /R [52 73 308 791 ] >> 16 0 obj 29 0 obj First Online: 24 January 2011. endstream Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Physics of Baseball & Softball pp 235-249 | Cite as. 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. • The bat breaks when large amplitude vibrations reach the thin part of the handle. 6 0 obj [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. /N 13 0 R /R [52 73 308 791 ] ball. /N 24 0 R /N 21 0 R The existence of the “sweet spot” is mainly because the vibrations do not agitate at that particular node. There are many definitions for what constitutes the "Sweet Spot" on a baseball bat. /R [316 73 572 791 ] 24 0 obj The Sweet Spot of a Bat. /R [316 73 572 791 ] The numbers on the axis represent inches (this data is for a 30 inch Little League wood baseball bat). The amplitude of the vibration is greatly exaggerated for clarity. Comment on ‘‘The sweet spot of a baseball bat,’’ by Rod Cross ƒAm. /V 16 0 R [1] H. Brody, "The sweet spot of a baseball bat," American Journal of Physics, 54(7), 640-643 (1986) >> So, while the sweet zone is wider, the resulting vibration for impacts outside of this zone is actually worse for this aluminum bat. > Dr. /V 7 0 R [2] R. Cross, "The sweet spot of a baseball bat," American Journal of Physics, 66(9), 771-779 (1998) /F 3 0 R << << This was long thought to be the bat's sweet spot. The Sweet Spot of a Baseball Bat Update your browser. The handle end of the bat is at the right, and the barrel end is at the left. SSB Baseball. >> So, by this definition of the sweet zone, the aluminum bat has a wider sweet spot. So, well hit balls are struck at the sweet spot. /P 17 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. 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. >> << %���� • All of this is verified in actual games with high speed video. 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. 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. Reflexes. endobj /P 8 0 R Throw some junk with SweetSpot Baseball Spaseball. /R [316 73 572 791 ] /ColorSpace [/Indexed /DeviceRGB 255 28 0 R] Provide a hand calculation for the displacement modeling the bat as a beam: a. 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. but generally the “sweet spot” is approximately 17 cm from the end of the barrel of a major league baseball bat. /V 6 0 R Sweet Spot of Baseball Bat # 3A15.50 : Description: A baseball bat and a simple pendulum are suspended next to each other. << /R [316 74 572 585 ] Physics Baseball "sweet spot"? Russell, associate professor of Applied Physics at Kettering University, originally used baseball and softball bats to … The physics of baseball Baseball players know from experience that there is a ``sweet spot'' on a baseball bat, about 17cm from the end of the barrel, where the shock of impact with the ball, as felt by the hands, is minimized. >> SCIENCE HAS A SWEET SPOT FOR BASEBALL BASEBALL A PHYSICS PASTIME. [4] J. Braham, "Keep your eye on the bat," Machine Design, 69(13), 56-66 (July 10, 1997) /R [52 73 308 791 ] This is difficult to verify, because of the variety of sweet spot definitions. /P 4 0 R The fundamental bending mode has two nodes, or positions of zero displacement). Good eyesight. [/CalRGB /V 10 0 R 15 0 obj endobj A bat vibrating at its fundamental frequency (above, in black) has a node of zero vibration about 6 1/2 in. /R [52 73 308 791 ] [3] H. Brody, "Models of baseball bats," American Journal of Physics, 58(8), 756-758 (1990) The animations are experimental results from an measurement called modal analysis, from which the relative motions of every point on the bat may be determined compared to every other point. 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 … >> Adjust the length of the simple pendulum until its period matches that of the swinging baseball bat. endobj References Third bending mode (1252 Hz). /N 27 0 R Simply the best backyard, plastic bat available! The figure below compares sweet zones for three Little League (30-inch) bats: two wood bats (ash and maple) and a single-walled aluminum bat (with no fancy technological improvements). The bat was tapped with a special force hammer at each of 30 points along the bat's length. >> /P 26 0 R The "sweet spot" is defined as the center of percussion of the bat as shown in the Figure below: pivot CM) 1. @L`YKUJNGBP\poR=_;Dl'P(T 1 0 obj 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." << /N 22 0 R /Length 459 << (One side of bat shown) BUY Now. These vibrational modes. endobj endobj 18 0 obj The sweet spot of a baseball bat, like that of a tennis racket, can be defined either in terms of a vibration node or a centre of percussion. Strike the bat with the supplied stick at the location of the level of the pendulum bob. << /V 22 0 R /N 12 0 R These animations were obtained from a modal analysis experiment. /V 13 0 R /Width 77 The Physics Of Hitting A Baseball Hitting the "sweet spot" is something that baseball players strive for. /N 10 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. 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. Every Time! The sweet spot of a bat exists because bat vibrations are not excited significantly at that spot. 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. /N 25 0 R /P 20 0 R >> 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. >> Older aluminum bats (ie., those made in the late 70's and early 80's) actually sting worse than wood bats. Baseball Bat Science - How It Impacts Your Bat. << Each baseball bat has a sweet spot due to vibrational physics. A collision near the node reduces the vibrations felt by the hand. /V 19 0 R /P 23 0 R dKoL!8Ka#EV,@V!\j8ZFbp6EE<9cn=N6j0nf;(&;QU6bUD')c@\ << /P 8 0 R /P 14 0 R /N 16 0 R ] /P 20 0 R /V 12 0 R Fundamental bending mode (215 Hz) /BitsPerComponent 8 /V 3 0 R /Filter /LZWDecode /Matrix [0.4497 0.2446 0.02518 0.3163 0.672 0.1412 0.1845 0.08334 0.9227] The bat was suspended at each end with rubber bands. endobj >> << /P 11 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. A baseball bat has a "sweet spot" where a ball can be hit with almost effortless transmission of energy. The other at about 24 inches from the barrel end (6 inches from the handle) at approximately the location of a right-handed hitter's right hand. endobj It turns out there's a lot of physics that goes into the sweet spot on a baseball bat! A baseball bat has a "sweet spot" where a ball can be hit with almost effortless transmission of energy. Concentration. /WhitePoint [0.9505 1 1.089] /Height 99 /N 15 0 R BAT & BASEBALL COMBO. In fact, if the ball strikes the bat exactly on the ``sweet spot'' then the hitter is almost unaware of the collision. << endobj endobj One of the definitions of the "sweet spot" is the location of the node at the barrel end of the bat. endobj The bat will recoil more at this location. Every Time! 12 0 obj >> Second bending mode (670 Hz) /Filter [/ASCII85Decode /LZWDecode ] In this video our group was hitting the baseball and recording the distance. Where is the sweet spot on a baseball bat and how do you find it? 9-d\DA=cZ0Q>gIM$$;cd2O@&a;X,Nn_aP(]I1aRc(K1^ue> %PDF-1.1 SSB Spaseball. That's physicist talk for the point where the ball's impact causes the smallest shock to your hands. /Gamma [1.8 1.8 1.8] << /V 24 0 R It does not support the video tag. To squarely hit a fastball, everything has to be perfect. >> All of these are needed to hit a baseball at the Major League level. stream (7Boo^^S:71(MN]ZQX/+Cbu.lK"p74pe1T%s.DY%&\1TdJhr54.M9au6>79n6`Q:4 /P 11 0 R << /V 18 0 R /V 15 0 R SCIENTISTS DON'T CARE IF THEY EVER GET BACK. 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. Our patent pending, SSB28 bat and plastic baseball combo. The animations at left were obtained for one of the wood bats in our laboratory. /R [52 74 308 585 ] 10 0 obj /Length 996 22 0 obj /V 5 0 R 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. endobj [5] "Batter up! >> /N 7 0 R Also, why does hitting a ball on the sweet spot sound so good? endobj 19 0 obj Physics Baseball "sweet spot"?new? << /R [316 73 572 791 ] Major League Physics Dedicated to the learning and teaching of physics through baseball. Problem 1 (50 Points): Calculate the displacement of a baseball bat impacted by a ball in its sweet spot using Castigliano's theorem. /Title (Untitled) /V 21 0 R /R [316 73 572 791 ] /R [52 611 308 791 ] Every sport is governed by the laws of science – physics, aerodynamics, kinematics, etc. The rubber handle wraps and the recent technological modifications to aluminum bats reduce the vibration so that modern aluminum bats now sting less than most wood bats. A baseball bat has three "sweet spots"; one of them is called its "center of percussion" (COP). endobj endobj 2 0 obj /P 23 0 R /N 18 0 R 21 0 obj The average hitter needs about 50 milliseconds to instinctively assess the speed and location of an incoming pitch. The Physics of Baseball Bats What have we learned? Another node exists about 6 inches from the handle end (both nodes are identified by the black dots in the animation). /R [316 73 572 791 ] This point, usually 5-7 inches from the barrel end, does not move when the bat is vibrating in its first (or fundamental) bending mode. /N 6 0 R << The material of a bat has no effect on its sweet spot, at least as it's defined in physical terms. 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 … << /I << endobj /P 4 0 R endobj 28 0 obj 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. /N 9 0 R J,g]g+e/h_!_gCtO=0f)$P%cIi8Zdfc5&3j_8$7g. It minimizes vibration of the bat and results in the maximum energy delivered to the ball, meaning it … Go deep with SweetSpot Baseball. /R [52 73 308 791 ] endobj 1 Citations; 1.5k Downloads; Abstract . BUY Now. https://www.education.com/.../article/the-physics-of-cheating-in-baseball Space-like weight. The sweet spot of a baseball bat, like that of a tennis racket, can be defined either in terms of a vibration node or a centre of percussion. >> The spot is close to the centre of percussion (COP) for a freely supported bat, so it was thought at one time that the sweet spot might be associated with the COP. stream 5 0 obj An accelerometer was fixed to the barrel end of the bat, and a measurement of the ratio acceleration/force (called a Frequency Response Function) was recorded for each of the 30 locations. 9 0 obj However, the natural damping in the aluminum bat is so small that when a freely-supported bat is struck an impact at the barrel, the aluminum bat continues vibrating more than 10-times as long as a wood bat. 66 —9–, 772–779 —1998–⁄ Robert K. Adair Department of Physics, Yale University, P.O. << /R [52 73 308 791 ] Baseball > Sweet Spot Maintained by Dr. /N 19 0 R gF/(+GaKo$qneLWDrQ#;5\S(\$q'LM9bYJX9N;hHO_e;>`Y"/'J:I~> One batting cage study Backyard ball just became Major … The "sweet spot" associated with maximum batted ball speeds was located approximately the same distance from the tip of wood bats as it was from metal bats. It Impacts your bat for clarity baseball bats what have we learned 30 points the... Physics of baseball & Softball pp 235-249 | Cite as games with high video... —1998–⁄ Robert K. Adair Department of physics through baseball of the bat was tapped with a special force hammer each! ) actually sting worse than wood bats in our laboratory were obtained one. Sting during the bat-ball collision difficult to verify, because of the bat was with! • the bat 's sweet spot of a bat has no effect on its sweet ''. Bat is at the sweet spot '' is the location of the bat milliseconds! 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