Romax Designer R23 Romax transmission system simulation platform

Romax Designer R23 Romax Designer v2023

Romax transmission system simulation platform

Romax is an industry-leading product line for designing complex gear transmission systems, bearing systems and drive systems. It can also be integrated into current engineering processes to automate tasks, reduce repetitive work, and improve efficiency and accuracy.

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About Romax Electric Drive Solutions

Over the past 30 years, Romax has been at the forefront of the industry by developing engineering methods that can consider the interaction of electromechanical systems. Today, Romax is leading the industry into the era of powertrain electrification (electric drive). With world-leading engineering design experience in the field of rotating machinery, first-class simulation tools and rich expert knowledge, Romax can provide a complete turnkey engineering solution for the transmission chain, helping customers achieve “right the first time” product development.

Platform function
Development of gearboxes, axles, reduction boxes and precision transmission components; solve problems in gear design and strength verification, bearing life estimation, synchronizer performance calculation, case structure stiffness design and strength analysis, bridge housing flexibility to bevel gear misalignment analysis, transmission efficiency calculation and system NVH performance estimation for various gearboxes, axles and other transmission systems.

• 1. Transmission system parametric modeling

♦ Capable of 3D full parametric modeling of various types of gears (spur gear/helical gear/spiral bevel gear/fixed axis/planetary), housings, shafts, and bearings

♦ Full parameterization function for the complete design process from conceptual design to detailed design to verification and validation

▼ CAD software interface module, which can support data exchange between Romax models and CAD models (CATIA/UG/Pro-E)

 

• 2. Transmission concept design—Romax Concept

♦ System-level design and evaluation of transmission devices in the early conceptual stage of development

♦ Match the transmission system design with the vehicle’s power and economy

♦ Support seamless transition from conceptual design to detailed design

• 3. Transmission system detailed design and analysis—Romax Designer

♦ Transmission system comprehensive efficiency analysis

▼ Includes FVA345 gear meshing, oil churning loss, oil seal, and bearing efficiency calculation functions

▼ Analyze, decompose and locate the factors affecting power loss

▼ Supports vehicle driving cycle efficiency calculation

♦ Fine and durable design of transmission system

▼ Supports evaluation and optimization of gear tooth guide, tooth shape and diagonal modification schemes

▼ Supports straight/helical/bevel gear tooth surface contact stress and tooth root bending stress analysis

▼ Supports ISO and other bearing contact definitions, stiffness and raceway deformation calculations, durability and influencing factor analysis

▼ Supports spline modification, strength verification of shafts, housings, bolt connections, and fatigue durability assessment

▼ Supports load spectrum editing and accelerated fatigue durability design based on measured data

 

♦ Transmission system NVH performance analysis

▼ Gearbox whistling analysis and knocking noise analysis

▼ System modal vibration shape, dynamic response (including waterfall diagram) calculation and 3D display

▼ Planetary gear train sideband analysis

 

• 4. Integrated design and analysis of electromechanical transmission systems

The mechatronics holistic design approach enables:

♦ Conduct overall mechatronic design at the conceptual design stage

♦ Accurately obtain the NVH response of the powertrain under gear and motor excitation

♦ Optimize and improve the mechatronic system

 

• Jingwei Hirain provides transmission system solutions

♦ Transmission system concept stage configuration design – detailed design – verification and validation of the entire process solution

♦ Comprehensive performance evaluation and optimization of transmission system efficiency, durability, NVH (squealing/knocking, etc.)

♦ Synchronizer design and shift performance optimization

♦ Transmission thermal management

♦ Lubrication/cooling system design and oil stirring simulation analysis

 

Feature
1: Gear design, strength inspection, LTCA analysis

2. Use AGMA, ISO, DIN standards to perform strength checks on spur gears/helical gears

3. Quickly optimize spur gear/gear pair parameters according to different optimization goals (e.g. greater overlap)

4. Detailed hypoid/spiral/spur bevel gear design and strength inspection to AGMA and Gleason standards

5. For fine teeth with large overlap, Romax supports finite element meshing and calculates tooth surface contact stress and root bending stress.

6. Consider the influence of manufacturing and installation errors and system deformation, calculate the planetary gear transmission error, and support planetary gear load analysis

7. Supports modification of tooth direction, tooth profile and diagonal of spur gears, optimizes micro-geometric parameters of gear teeth, and quickly obtains improvement plans that meet requirements.

8. Rolling bearing contact and fatigue analysis

9. Support the study of bearing preload parameters to optimize the best preload value

10. Detailed analysis of roller bearings to obtain calculated values ​​such as rolling element Hertzian contact stress and raceway deformation

11. Considering the impact of bearing misalignment, high-speed centrifugal force, lubricant contaminants and other factors on bearing life, various bearing life expectancy standards such as ISO281 2007 are supported.

12. Analysis of gearbox structural parts

13. Static deformation and stress calculation and modal analysis of structural components

14. Analyze the influence of deformation of structural parts such as housing and planetary carrier on gear bearing misalignment