Classroom Training


Cylindrical Gear Design, Analysis and Optimization by using KISSsoft

The objective of the 3-day advanced training is to understand the fundamental theories for cylindrical gear design and analysis and to learn the application usages of KISSsoft. Participants will gain knowledge on how to interpret the gear rating, analyze reports and apply the software to improve gear design from the conceptual to the final design phase.


Participants will learn how to handle the geometric definitions and properties, manufacturing, and inspection techniques of cylindrical gears. It continues with strengths rating for the analysis of various gear failure modes. Basic knowledge on gear contact analysis will be provided and various strategies will be explored using the KISSsoft sizing functionalities and applying them on gear design and optimization.


2 October 2024 – 4 October 2024


09:00 – 17:00 (GMT+8) Singapore


You will need a notebook to actively participate in the training. Before the start of the training, participants will receive an actual test version Release 2022.

Pedagogical means:

Teaching method alternating theory and practice through case studies or works directed.

Who should attend:

The training is meant for engineers who are already familiar with cylindrical gear calculations and basic functionalities in KISSsoft.


  • Geometry of Cylindrical Gears with Involute Profile, Part I
    • Gearing law, Involute tooth form
    • Reference profile and tool geometry
    • Tooth form for spur and helical gears, external and internal gears
    • Profile shift, Grinding stock allowance, Manufacturing profile shift
    • Sizing profile shift coefficient and deep tooth form
    • Path of contact, Specific sliding
    • Definition of various circles
  • Geometry of Cylindrical Gears with Involute Profile, Part II
    • Backlash (Theoretical and Operating), Tip clearance
    • Operating backlash calculation
    • Tolerances and allowances, Quality and deviation
    • Various methods for inspection
    • Tooth flank modifications (Profile and tooth trace)
    • Profile and tooth trace diagram (K chart)
    • Measurement grid report
    • Most frequent errors found in the geometric design of gear pairs
    • Exercises
  • Strength of Cylindrical Gears, Part I
    • Calculation of safety factors
    • Definition of material data and Woehler Line (S-N curve)
    • Calculation of the flank safety according to ISO 6336:2019
    • Calculation of the root safety according to ISO 6336:2019
    • Alternative methods for root stress calculation (Graphical method and FEM)
    • Static strength calculation
    • K factors
    • Identifying required safety factors
    • Exercises

  • Strength of Cylindrical Gears, Part II
    • Load spectrum analysis
    • Load spectrum from time series data (Rainflow counting)
    • Reliability, lifetime, and damage calculation
    • Calculation of scuffing (flash temperature and integral temperature)
    • Micropitting
    • Exercises

  • Strength of Cylindrical Gears, Part III, Basics of Tooth Contact Analysis
    • Tooth flank fracture
    • Subsurface fatigue
    • Effect of profile and flank modifications on strength
    • Face load factor calculation according to ISO 6336-1 Annex E
    • Loaded tooth contact analysis according to Weber/Banaschek
    • Actual path of contact and identification of entry and exit impact
    • Actual normal force and stress distribution
    • Transmission error and its relationship with vibration and noise
    • Effect of the deviation and inclination error of the axis
    • Exercises

  • Strategies for Gear Design Optimization
    • Rough sizing to define the raw dimension of gears
    • Fine sizing to define the macro geometry of gears
    • Modification sizing to define the micro geometry of gears
    • Finding an optimal solution well-balanced for various criteria
    • Incorporating contact analysis results in sizing functions
    • Strategies for optimizing tooth flank form for strength and noise
    • Sizing modifications considering load spectrum
    • Sizing modifications considering manufacturing errors
    • Exercises

  • Questions / answers.


This course will be conducted by Robert SHANDRO.


Principal Consultant - Engineering & Material Science specialized in Failure Analysis, Forensic Investigation and Mechanical Power Transmission components.
More than 30 years of consulting experience in industries including Aerospace, Energy, Transportation, Shipbuilding and Public Works.
Member of French delegation for ISO TC60 (Technical Committee), Expert in load capacity calculation, quality of materials and failure analysis for gears.
Member of IES (Institute of Engineers Singapore).

Areas of Expertise

  • Failure analysis of a wide range of mechanical equipment/components and structural facilities
  • Design, verification and failure analysis on mechanical power transmission components
  • Condition and remnant life assessment of mechanical power transmission components
  • Expert witness for litigation and insurance claims
  • Expert consultant and technical support on patent litigations
  • Standardization works (ISO TC60)



  • 5 years as Design Engineer (electric motors and generators)
  • 12 years as Technical Advisor (Judicial Expertise)
  • 13 years as Project Manager at CETIM
  • From year 2019 – Principal Consultant at MATCOR


  • Master of Engineering (MEng) UPT 1986
  • Master in Materials Science (MSc) ISMCM 1992

Course Name

MTS15: Cylindrical Gear Design, Analysis and Optimization by using KISSsoft Software

Course Date:

2 October 2024 – 4 October 2024


09:00 – 17:00 (GMT +8) Singapore

Closing Date:

17 September 2024, Tuesday

Course Fee:

SGD 2,400.00 (exclude GST)

Early Bird:

Registration must reach us on or before 17 September 2024:
SGD 2,160.00 (exclude GST)

We welcome groups to attend our trainings. Please contact us for a group discount package.

Our Accounts will advise if GST is applicable. Participants shall bear all bank charges.
Learners must fulfill at least 75% attendance and pass all assessment components, to be awarded with a Certificate of Attendance (COA).

For clarification or inquiries please contact Mrs Lorraine HUANG or Joshua LEE at +65 67788285 or send an email to

Registration Form

To register for the course, please complete this form.

Payment Details:

  • Registration form and course fees are to reach MATCOR before the closing date.
  • Registration will only be confirmed upon full payment.
  • Direct internet banking payment to MATCOR Technology & Services Pte Ltd, Bank: Development Bank of Singapore, Bank Code: 7171, Branch Code: 032, Swift Code: DBSSSGSG, Bank Address: 1 Kim Seng Promenade, #02-32, Great World City, Singapore 237994, Account / Iban No: 032-004152-3. / PAYNOW: UEN199201190R
  • All cheques should be made payable to “MATCOR Technology & Services Pte Ltd” and mailed to 3 Seletar Aerospace Link Singapore 797550, Or
  • Overseas participants may choose to pay in EUR or USD.
  • Participants shall bear all bank charges for payments.

For clarification or inquiries please contact Mrs Lorraine HUANG or Joshua LEE at +65 67788285 or send an email to

Cancellation & Refund:

  • Any cancellation made after closing date – no refund, but delegate substitution is allowed.
  • Any cancellation made before closing date will receive full refund.
  • MATCOR reserves the right to cancel or reschedule the course, only if deemed necessary