# TECH: Frequency

Frequency is a commonly used term in golf, it is used to described how stiff or flexible a shaft or built club is. Let’s take a look at the science behind frequency. A golf club can be represented by a simple cantilevered beam system as shown below in Figure 1.  The system is comprised of the shaft which has mass and stiffness. It is rigidly clamped at one end and has a defined length. At the free end of the shaft a concentrated mass is attached to represent the head. When an impulse force (pulling the head up or down) is applied the system oscillates at its natural frequency. This frequency value is measured in the number of oscillations or cycles that occur in one minute, hence the use of CPM or cycles per minute.

When a golf shaft or assembled club is tested for frequency the machine reports the frequency value. There are various machines available to measure frequency and not all use the same clamping length, measurement type, or concentrated mass. For these reasons it is always important to make sure the length, clamp, and weights are the same when comparing frequency measurements of shafts. The frequency value can also be calculated by the following equation:

By reviewing the equation we can see how much each of the components in the system influences the frequency value. Length is most significant; it is cubed and therefore multiplied by itself three times. The next most significant term is “EI” which is the stiffness of the shaft. EI represents the material stiffness (E) times the moment of inertia of the cross section (I). This term is multiplied by 3. The mass of the head is the third most influential term of the system and the mass of the shaft has the smallest contribution in the equation. By varying the parameters we can calculate that, frequency will go up when length decreases, stiffness increases, or head mass decreases. A reduction in frequency will be a result of, increasing length, a more flexible shaft, or an increase in head mass.

Now we have a frequency number and know what influences this value, what does frequency tell us? At best it gives one value to represent how stiff or flexible a shaft is, and if a golf shaft was a tube of constant stiffness it would be a good value to represent stiffness. Unfortunately the stiffness of a golf shaft varies greatly along its length and a single frequency value can not describe where or by how much the stiffness profile of a shaft varies. This is important to remember when using frequency to compare shafts. There are methods to better describe the stiffness profile of a shaft by taking multiple frequency or deflection measurements, and some methods that measure the actual stiffness along the length of a shaft. In a future article we will look at some of these methods.

If you have a suggestions for a future topic please email  them to: tech@matrixshafts.com

Tom DeShiell is the Director of Research and Development at Matrix Shafts. He has worked in the golf industry for over 16 years. He holds a Masters Degree in Mechanical Engineering from the University of California, Davis and previously worked on composite structures for military aircraft.

# TECH: Torque- What does it mean and how important is it?

As golfers read golf websites and scan the specifications of equipment manufacturers, they see values listed for the “Torque” of a shaft. What does is mean? When Torque is listed for a golf shaft it describes how much resistance the shaft has to twisting. Twisting forces are generated during the swing because the center of mass of the clubhead is offset from the centerline of the shaft. The values for Torque are reported in degrees of rotation. A lower value means the shaft will not twist as much as a shaft with a higher value.

To measure this rotation the shaft will have one end rigidly clamped and then on the opposite end, which is free to rotate, a mass of 1 pound is suspended offset 12 inches from the center line of the shaft. The free end of the shaft then rotates and the amount of rotation is recorded as Torque. Unfortunately most shaft manufactures and club companies perform this measurement on their own equipment and they all have different setups. The location and length of the clamps vary as does the distance from the end of the clamp to the location the torque is applied and measured; all these differences influence the Torque measurement. This has always made it difficult to compare the Torque values from one manufacturer to another.

Torque has a significant influence on the feel of a shaft. For example a player with high swing speed and quick tempo may find a low Torque shaft feels and performs best for them, while a slower speed player with a smooth tempo may find a shaft with higher Torque feels and works better. To accommodate different player types, shaft designers will develop different families of shafts with different weight, flex and torque characteristics.

Carbon fiber materials give the designer the ability to design shafts with any combination of weight, flex and torque. This is because of the unique properties of carbon fiber; these materials are available in different stiffness’ and have highly directional properties. The designer can vary the orientation of individual plies and choose different stiffness grades to achieve the desired combination of flex and torque. This is significantly different then steel shafts which can only vary the thickness and diameter of the shaft. Since steel is an isotropic material it has the same properties in all directions and therefore flex and Torque are linked. As stiffness of a steel shaft increases the resistance to torque also increases, they can not be designed independently. This may not give the best performance for an individual.

So when you are looking to improve your game with a new shaft it is always best to test a few with different Torque ratings or work with a knowledgeable club-fitter to find one that works best for you.

This is the first in a series of articles about golf shafts from Matrix, so if you have a suggestion for a future topic please email to:  tech@matrixshafts.com

Tom DeShiell is the Director of Research and Development at Matrix Shafts. He has worked in the golf industry for over 16 years. He holds a Masters Degree in Mechanical Engineering from the University of California, Davis and previously worked on composite structures for military aircraft.

# PGA Championship GIVEAWAY!

Now is your chance to win a Matrix Flight System, custom color shaft of your choice! Entering to win is EASY. Here is what you need to do:

1) Comment below on this post  telling us what you would choose if you won, including shaft model (M3 Black Tie, Q3 Red Tie, X3 White Tie), custom color option chosen from our color list, and what you would want laser engraved on the shaft.

http://eepurl.com/wPQhH

You must do BOTH to qualify and one winner will be selected at random to receive the customized Matrix Flight System shaft.

The winner will be announced on Monday, August 12th by noon. Good luck!

# U.S. Open 2013

U.S. Open week. Some would say it’s their favorite week in golf and Merion Golf Club brought many challenges and excitement, giving us a week of golf that won’t be soon forgotten . Just two days before the practice rounds began, remnants from Tropical Storm Andrea hit Ardmore and caused chaos throughout the course for the Merion staff. The Matrix Tour team survived the rainy weather, even though it seemed at times the course throughout the practice week, would not.

One of the most challenging things for spectators and media alike was figuring out the course. Even though it was a smaller course, it was roped off in a way where using a course map was necessary and asking  a volunteer for directions occurred regularly.

The USGA rented out residents homes and driveways in order to set up offices, shuttle stations, and check-in areas throughout the course. (See Below)

With rainy conditions on the course all day Monday, and the aftermath with mud and standing water everywhere on Tuesday, the course maintenance staff had literally transformed the course overnight in such a way where it looked liked it had never rained at all on Wednesday.

One of the many great things about having a tour truck is you have somewhere to go when it rains! A lot of tour trucks are equipped with TV’s and in the tour truck Matrix uses, Caddyshack is playing 24/7. A lot of reps can even quote the whole movie!

The Matrix Flight System shafts continue to be popular among the PGA Tour players, and we snapped some action shots below of the X3 White Tie and Q3 Red Tie in action on the range.

OZIK Q3 Red Tie

OZIK X3 White Tie

OZIK Q3 Red Tie

OZIK X3 White Tie

It was also a surprise to see one player bring out this custom color RADIX shaft out on the range and put in play this week. What custom color Matrix Shafts do you have?

When you are constantly traveling week after week, you are bound to run into a couple of problems eventually. As you read earlier, after the downpour on Monday, mud was everywhere Tuesday..which made parking in the lots a little challenging. When it’s bad enough you face the risk of getting stuck…like this.

You know it’s really bad when the tow truck that is suppose to rescue you gets stuck and has to get someone to come pull him out. It definitely gave us a few laughs and after leaving our car there and heading to work on the course, we finally were able to get out…8 hours later.

Here a few more shots from the tournament.

OZIK M3 Black Tie

OZIK M3 Black Tie

# The Players Championship 2013

It was another great week for Matrix at The Players Championship. Known for being the “fifth” major, you can probably understand the excitement from both players and spectators. The energy was high and the course looked fantastic for having just received 5+ inches of rain just two days prior to the start of the week.

There was a lot of club testing was going on this week and the Matrix Flight System continues to be a shaft model the players are asking for. They love the simplicity of the new shaft selection process that we have brought to the game, even they get overwhelmed sometimes! Be sure to keep your eyes open this weekend as you watch the tournament, and let us know if you spot the Black Tie, Red Tie or White Tie.

With different events going on such as the PGA Tour Wives Par 3 Tournament, the “17th hole challenge” that allows fans to compete on a similar 17 green, and the caddie challenge on the 17th hole Wednesday, the spectators, players, their families and even the manufacturers had an entertaining week.

The fun doesn’t stop there though, each day this week events will be taking place at the course and will end on Sunday with the TPC Pink Out, where players and fans are encouraged to wear pink in honor of Mother’s Day and in support of Breast Cancer Awareness. Matrix is doing our part and has teamed up with The Hackers Paradise to give away a custom pink OZIK M3 Black Tie. You can find out more information about how to win here: http://www.thehackersparadise.com/?p=19674

Matrix will be heading to Texas next week for the Byron Nelson and Colonial, and we will continue to bring you the scoop from behind the ropes!

# Masters Shaft Giveaway

In honor of The Masters kicking off today, Matrix is giving away a Limited Edition Masters OZIK X3 White Tie shaft to two lucky fans! What do you have to do to be entered? It’s simple!

3) Comment below to tell us your favorite Masters moment.

You must do all three to qualify!!!

Giveaway is open now until Sunday at 5pm (CST). Two winners names will be randomly drawn to receive a Limited Edition Masters shaft, with your name custom engraved on the shaft. Winners will be announced Monday morning on the blog, Facebook and Twitter. Free shipping to U.S. and Canada only. Limited weight and flex options available.

Good luck!

# Dealer Spotlight: The Golf Doctor

Matrix Shafts is proud to have the support of many dealers and distributors all around the world. Every month we will be profiling a Matrix dealer here on the blog.

The Golf Doctor, located in Woodstock, GA, is recognized around the country as one of the premier Club Fitting and Clubmaking establishments in the country. Run by one of Matrix Shafts very own Advisory Board members, Ed Grabowy and his son Matt Grabowy, the Golf Doctor team works hard to promote the use of properly fitted golf equipment among the golfing public.

With over 1,000 different test club combinations, and a club fitting process that has been developed over 15 years, The Golf Doctor insures that they can help you get the best equipment for your game.

Not only does The Golf Doctor team specialize in Clubfitting, but in Club Repair as well. They have over 15 years of experience in adjusting and repairing golf clubs and has continued to teach Club Repair techniques to the members of the PGA of America since 1996.

Why is shaft selection is so important?

“Matching a golfer with his specific swing characteristics to the correct shaft has a greater potential impact on club performance than any other part of the golf club.  Golf club designers have come pretty close to maximizing the performance of the golf clubhead; drivers are as hot as they can get and as forgiving as they can be, while still obeying the rules set by the USGA.  The only area where innovation can have a chance of improving performance is by changing the shaft characteristics that dictate how the clubhead is delivered to the ball.  If we can increase ball speed, decrease dispersion, and optimize launch and spin numbers, we can get the golfer to hit the ball longer and straighter.”-Matt Grobowy

Why do you use and recommend Matrix to your clients?

“One reason that we use Matrix shafts is that they provide so many different options that allow us to more finely tune the fitting process to unique golfers.  Matrix provides a great library of shafts that combine a variety of performance characteristics and allow us to fit a wide range of golfers with very different swings.”-Matt Grobowy

The Golf Doctor offers many perks for their loyal customers including the Eagle Member Club, but also Junior Discounts on Clubfitting sessions, Replacement and Exchange Programs, and even hotel specials for 0ut-of-town guests who are coming in for a fitting. (http://www.golfdoctor.com/special-offers.htm)

For more information, check out The Golf Doctor team on their website at http://www.golfdoctor.com.

# Tour Update

As the Matrix tour team moves into working its 12th straight event for 2013, the momentum from 2012’s successes continues to drive them. With 15 top ten finishes for the year so far, and the launch of the new Matrix Flight System, the Matrix tour team has only high expectations for the rest of the season.

“It’s been a great season for Matrix so far,” said Director of Tour Operations, Joe Miera. “Players are excited about our new product lines and are really happy with the results that they are bringing to their golf game. We have a great team and great partnerships out here on tour and I am really looking forward to a great season.”

The Matrix tour team also has a new face this season. Nathan Fritz joined as a Tour Rep. at the end of 2012 and is enjoying representing the brand on the course.

“It has been great working with the best players in the world out on tour,” said Fritz. “It’s amazing how Matrix designs shafts that can help improve any type of player, both amateur and professional.”

Upcoming Events:

PGA Tour: Tampa Bay Championship –Palm Harbor, FL

PGA Tour: Arnold Palmer Invitational –Orlando, FL

Nationwide Tour: Chitimacha Louisiana Open—Broussard, LA

PGA Tour: Shell Houston Open-Houston, TX

At the end of the month we will feature our tour team on the blog and give you a behind the scenes look at what a regular day on tour looks like for the Matrix Tour Team. Stay tuned!

# Dealer Spotlight: Modern Golf

Matrix Shafts is proud to have the support of many dealers and distributors all around the world. Every month we will be profiling a Matrix dealer here on the blog.

Modern Golf, located in Toronto, Canada, opened their doors last July and are busier than ever fitting customers from all over Canada and the United States.

The pictures alone do not do this state-of-the-art facility justice. It is built to give golfers the ultimate club fitting experience and with the use of the best technology in the industry, and their highly trained golf and club-fitting professionals on staff, they are able to do just that.

Stocked with all of the latest equipment in the golf industry, Modern Golf currently has the largest selection of Matrix Shafts in their area. They pride themselves on being a place where customers get the most out of their golf equipment and to create a customer experience unlike any other golf shop in the world.

2013 is proving to be a great year already for the Modern Golf Team and they are hitting the road in the new Modern Golf Mobile. This completely stocked van will travel to golf courses both locally and across the country, to give golfers the ultimate club fitting experience. Check their Facebook page to find out when they will be at a golf course near you!

If you love golf and want to improve your game, we encourage everyone in the Toronto and surrounding areas to check out Modern Golf. With their amazing facility, knowledgeable staff and newest product available on hand, we guarantee you will walk away impressed and wanting more. We are proud to spotlight Modern Golf this month on the blog!

# Introducing the New Matrix Flight System

The 2013 PGA Show is quickly approaching and Matrix is gearing up!

Our main focus at the show will be on the new Matrix Flight System(MFS).

As shown above, the MFS consists of the OZIK M3 Black Tie, which was debuted last year at the show, the newly released OZIK X3 White Tie and the soon to be released OZIK Q3 Red Tie.

The combination of color and letters in the new MFS allowed us to simplify things for greater understanding. For people that remember colors well, it’s red (mid-launch), black (low-launch) and white (high-launch), which happen to be our corporate colors. For those that can think of the Alphabet vertically off the ground — A being the lowest — they can picture the apex of the ball at the letter M, a bit higher for Q and higher yet for X. It’s comprehensive, but a simple memory tool for players, tour reps and fitters.

We are continuing to bring the best products, made with the most premium materials and state of the art technology to the golf industry.

Matrix Fans, get ready for exciting things from us in 2013!