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Launch direction () for 15 mm toe impact based on discretionary mass placement. Final clubhead mass is 360 g. (a) Scenario 1; (b) Scenario 2; (c) Scenario 3; (d) Scenario 4.
Source publication
The forgiveness of golf putters is traditionally achieved through weight distribution. Putters are often designed with large footprints, which help to increase the moment of inertia (MOI), but consequently move the center of gravity (CG) farther behind the face. The use of higher MOI putters will result in less ball speed loss on impacts away from...
Context in source publication
Context 1
... effect of discretionary mass placement on launch direction, given an initial clubhead mass, CG, and MOI, can be determined from (2)-(4). A few scenarios are considered in Figure 3. For each plot, negative and positive values for are shown as a visual aid, but because heel-toe symmetry is assumed in (4), it is not necessary. ...
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Citations
... From experiments, he observed that face treatments such as inserts and grooves changed the contact forces but, for a given putt length, they had no effect on the ball skidding distance. Lambeth et al. used experiments and a 2D IM model (in the horizontal plane) to conclude that deviations from the desired ball launch direction for offcenter impacts are minimized by maximizing the vertical MOI and minimizing the distance from the putter face to the CoM (CoM "depth") [131]. ...
A narrative review of dynamic models of golf phenomena is presented, as well as current technologies for measuring the motions of a golfer, club, and ball. Kinematic and dynamic models of the golf swing are reviewed, including models with prescribed motions or torques as inputs, and predictive dynamic models that maximize an objective (e.g., driving distance) to determine optimal inputs or equipment designs. Impulse–momentum and continuous contact dynamic models for clubhead–ball and ball–ground impacts are described. The key observations from 172 cited references are extracted and presented, along with suggestions for future research.
