Company:

Thales Angenieux

Products:

Adams

Industries:

Consumer Products

Adams View helps to optimize time to inspect sub-assemblies for zoom lenses

Overview:

The defining characteristic of a zoom lens is that its focal length can be varied. The focal length determines the angle of view — how much of the scene will be captured — and the magnification —how large individual elements will be. The shorter the focal length, the wider the angle of view and the lower the magnification. The advantage of zoom lenses over lenses with a fixed focal length is that you don’t have to change lenses to achieve a tighter or a wider composition. Most zoom lenses, particularly those designed for consumer and professional photographers, lose focus when the focal length is changed. But high-end zoom lenses, especially those designed for producing films or television, can be zoomed in and out without losing focus. This type of lens is called a parfocal lens. The first parfocal lens capable of zooming in an out while maintaining precise focus to a degree acceptable for demanding cinema production was designed and built by Pierre Angénieux in 1956, a feat for which he received an Academy award for technical excellence. Parfocal zoom lenses are very difficult to design and build. Zoom lenses generally consist of three different groups; two of them are moving together (to change focal length) and the last one independently (to focus) and one stationary group of lenses with each group comprising two of more lens elements.

Results Validation:

With the new method proven, Ayad simulated all of the company’s zoom lenses and found the worst-case position for each lens. Now inspectors are able to inspect the tilt simply by moving the lens to this position and making the measurements. The net result is that the time needed to inspect each lens has been reduced.

Benefits:
  • Inspection time has been reduced
  • Less experienced operators can perform the inspection
  • Adams simulation accurately predict worst case position

 
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Company:

Navistar & Tech Mahindra

Products:

Adams

Industries:

Automotive

Adams Simulation of Hose Routing Helps Reduce Time to Market by Six Weeks

Overview:

It takes a 450 horsepower truck with an 80,000 lb. load roughly 90 seconds to accelerate to 50 mph but the brakes must be able to stop the truck in less than 5 seconds. Air brakes are used almost exclusively in heavy-duty trucks and trailers because they offer the following advantages. First, the air they run on is free. It only needs to be compressed, cleaned, stored and distributed. The air brake circuit can be easily expanded so trailers can be coupled and uncoupled from it. Besides providing the energy required to stop the vehicle, compressed air also signals when and with how much force the brakes should be applied in any situation. Finally, air brakes can be designed with sufficient fail-safe devices to bring the vehicle safely to a stop, even in the event of an air leak. Reinforced rubber hoses deliver air from fittings on the frame to brake chambers on the axles. In a typical tandem rear suspension there are typically 8 brake hoses plus additional hoses for the power differential lock and other features for a total of 11. The hoses must be routed through a tight space and accommodate the full range of steering gear and suspension travel. The hoses are required to avoid contact with components with sharp edges that might wear the hoses, maintain a specified minimum bend radius to avoid constricting flow within the hose, and avoid axial forces high enough to pull out the hose out of the fitting.

Results Validation:

“Simulation makes it possible to try many different positions, orientations, and clipping options early in the design phase prior to the availability of a prototype,” said Stefano Cassara, Manager Vehicle Dynamics Simulation for Navistar. “New design iterations can be evaluated in a small fraction of the time required for physical testing. The new approach makes it possible to design new hose configurations in only about two weeks. Since the design process will be carried out early and outside the critical path we should be able to bring new vehicles to market six weeks faster than in the past. Another advantage of the new approach is that we can model loading scenarios, such as braking, that cannot be duplicated on the test rig.”

Benefits:
  • Simulation of hose routing helps reduce time to market by six weeks
  • Adams predictions perfectly matched test results in each steering position
  • Simulation provides a much better understanding of how to route the braking hoses to avoid contact with components with sharp edges that might wear the hoses in response to suspension and steering movement
  • New Adams FE Part provided a fast and accurate way to predict the large deformation of brake hoses in Adams environment

 
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Company:

Aomori Prefectural Industrial Technology research Center

Products:

HeatDesigner

Industries:

Electronics

Aomori Prefectural Industrial Technology research Center

Overview:

The Hachinohe Industrial Institute is one of the affiliated laboratories of the Aomori Prefectural Industrial Technology Research Center (hereafter the Research Center). A Prefecture is an administrative district. Japan consists of 47 prefectures. The Research Center uses HeatDesigner to help solve thermal problems for electronics. The range of applications includes scanners for food contaminants, devices for measuring the quantity of sugar and moisture in agricultural products, and inspection devices for assessing moisture and heat in coal and biomass.


 
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Company:

Hitachi Mito Engineering Co. Ltd.

Products:

HeatDesigner

Industries:

Consumer Products

Hitachi Mito Engineering Co. Ltd.

Overview:

Hitachi Mito Engineering provides engineering support for the development of elevators and various industrial products. To minimize tasks and improve process efficiency during the early phases of development, they conduct simulations for thermal design processes using analysis tools developed by Software Cradle. Hitachi Mito Engineering has been a very successful company. This narrated interview will provide insight about how they achieve steady growth while incorporating the latest technology and consistently building on their accumulated experiences.


 
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Company:

TEN TECH LLC

Products:

scSTREAM

Industries:

Electronics

Mechanical engineering consulting company that provides design, test and analysis services

Overview:

TEN TECH LLC is an ITAR (International Traffic in Arms Regulations) registered mechanical engineering consulting company headquartered in Los Angeles, CA with operations in Billerica, MA, providing Mechanical Design, Analysis and Test services with emphasis on Aerospace & Defense, Hi-Tech Electronics and Renewable Energy applications. TEN TECH’s Mechanical Design Division specializes in Consumer-grade and Ruggedized Electro-Mechanical Packaging, Electromagnetic Interference Hardening and Plastic Parts Design. Its Mechanical Analysis Division provides expertise in Structural Dynamics, CFD (Computational Fluid Dynamics), Thermal Analysis, Vibro-acoustics and Aeroelasticity while the Physical Testing Division offers Shock & Vibration, Thermal, Acoustics, Salt/Fog, Humidity and Airflow testing services. TEN TECH has been one of Software Cradle’s power users since 2011.


 
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Company:

IRCCyN

Products:

Adams

Industries:

Machinery

Adams simulation helps validate a concept called the “hidden robot model” to improve visual serving accuracy

Overview:

The vast majority of robots are controlled through the use of encoders that measure joint rotation. But even when encoders with very high levels of accuracy are used, the ability of robots to move to an absolute XYZ position and ABC orientation is limited by deflection, thermal expansion and manufacturing variation. Some applications, such as placement of a disk drive read head, require very higher levels of positioning accuracy that can only be achieved with a very expensive, special purpose robot. This challenge is being addressed with visual servoing technology that uses a vision system to acquire an image that determines the relative positions of the robot end-effector and the target.

Results Validation:

“The concept of the hidden robot model is a powerful tool able to analyze the intrinsic properties of some controllers developed by the visual servoing community,” Sébastien Briot concluded. “Adams simulations have played an important role in validating our theoretical work on hidden robot models. The integration of Adams with Simulink through Adams/Controls eliminated the need for us to write complex equations for predicting the dynamics of parallel robots and also provided graphical results that gave us a better understanding of robot behavior.”

Benefits:
  • Adams simulation accurately predicted position and orientation of the robot.
  • Simulation played an important role in validating the theoretical work
  • Complex equations are no longer needed to predict the dynamics of parallel robots

 
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Company:

National Defense Academy of Japan

Products:

HeatDesigner

Industries:

Consumer Products

National Defense Academy of Japan

Overview:

The configuration of cooling fans inside electronic devices is complex. This frequently results in generating large amounts of data when trying to represent the configuration accurately for fluid analysis calculations. To deal with this, engineers use the concept of the pressure-flow-rate (PQ) characteristics to simplify the calculation, although it has been pointed out that this simplification often becomes the source of errors. Professor Hajime Nakamura, from the National Defense Academy of Japan, has been exploring these issues pertaining to fan models for electronic devices and has discovered a more accurate model.


 
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Company:

WindStyle Corporation

Products:

scSTREAM

Industries:

Energy

More Practical, Accurate Wind Simulation Diversifies the Application of Wind Engineering

Overview:

Simulating complicated wind flows around buildings and the surrounding environment used to mean conducting wind tunnel tests that required a long time, large-scale facilities, and skilled experts. Now, many of the experimental tests are being replaced by computational fluid dynamics (CFD) simulations. Combining these two approaches draws on the advantages of each and is commonly done in engineering today. But Mr. Tetsuo Matsuyama from WindStyle Corporation, who has used scSTREAM for many years, envisions additional opportunities for CFD. He explains how using scSTREAM proactively to interpret wind flow can change design processes and building management.


 
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Company:

ACR Co., Ltd.

Products:

SC/Tetra

Industries:

Automotive

Applying CFD to improve the efficiency of turbochargers for extended-range electric vehicles

Overview:

ACR has proficient technical capabilities in vehicle exhaust catalytic converters. They are currently developing micro diesel engines for EREVs (extended-range electric vehicles). Software Cradle’s SC/Tetra CFD software plays an important role in the micro engine development process.


 
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Company:

Nagoya Municipal Industrial Research Industry

Products:

HeatDesigner

Industries:

Automotive

Nagoya Municipal Industrial Research Industry

Overview:

Nagoya Municipal Industrial Research Institute (NMIRI) is a public research institute in Nagoya city that provides test and analysis support to small/medium sized companies in cooperation with local industries. When the client's work involves thermal management, the engineers at NMIRI use Software Cradle simulation tools to perform the simulations. The engineers also use these tools for their own basic research and to verify the performance of test instrumentation.


 
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Company:

Payette

Products:

scSTREAM

Industries:

Energy

Accurate CFD software that throttles up building designing and energy modeling processes

Overview:

Payette, an award-winning architectural design firm located in Boston with 165 employees, specializes in high technology building design for science institutions, healthcare, and research facilities. With the emphasis on technology the firm’s projects often feature energy efficiency, naturally ventilated spaces, or a thermal corridor. Payette’s projects include the Duke University’s Environment Hall (Picture 1), George Washington University’s School of Public Health, and many more, all of which were recognized for design excellence. Payette has used scSTREAM CFD software since 2013.


 
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Company:

Honda R&D Co., Ltd

Products:

SC/Tetra

Industries:

Automotive

Deciding CFD tool based on thorough evaluation of benchmark model

Overview:

The Honda Motorcycle R&D Center (R&D Center) is using SC/Tetra Computational Fluid Dynamics (CFD) software for fluid analysis of key components of Honda motorcycles. The decision to use SC/Tetra was based on results of thorough in-house benchmark tests. Using SC/Tetra, the R&D Center improved the efficiency of the development process for the test case and is now extending its use to other motorcycle components.


 
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Company:

SAXA Inc.

Products:

HeatDesigner

Industries:

Consumer Products

SAXA Inc.

Overview:

SAXA Inc. (hereinafter SAXA) is a development company of business phone systems and network equipment and has obtained significant results using the software. SAXA launched a working group specializing in thermal design, and then in-house rules were prepared for selecting and utilizing software product before adopting HeatDesigner. 'HeatDesigner' is developed by Software Cradle and is one of the major thermo-fluid analysis software for electronic devices. And the company has achieved zero production rework in only one year. This time, we interviewed a SAXA staff about how they made full use of the software and what lies behind their success.


 
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Company:

MIZUTANI Electronics Ind. Co. LTD

Products:

scSTREAM

Industries:

Electronics

Specialty manufacturer of heat sinks products

Overview:

MIZUTANI ELECTRIC IND. (hereinafter Mizutani Electric), a specialty manufacturer of heat sinks and radiators for electronic devices, has been using Cradle scSTREAM for thermal analysis. Computational simulation has enabled the company to decrease the amount of experimental testing needed and substantially reduce their product development lead-time. Now they want to take another step to advance their simulation capabilities by drawing on their past experiences. To learn more about how Mizutani Electric is advancing the use of simulation, we interviewed Yousuke Watanabe, assistant manager of the Mizutani Electric Technology Center.


 
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Company:

Tokai University

Products:

SC/Tetra

Industries:

Automotive

SC/Tetra helps students earn world championship in solar car racing

Overview:

The Solar Car Team at the Tokai University Student Project Center (Kanagawa, Japan) has to be considered one of the premier student-led solar car design teams in the world after winning back to back World Solar Challenge races (2009 and 2011) in Australia. A critical aspect of successful vehicle design is minimizing aerodynamical drag since one major goal is to achieve high speeds while using minimal energy. The Tokai student-led team used Computational Fluid Dynamics (CFD) simulations to optimize the vehicle geometry. In particular they used Software Cradle SC/Tetra CFD Software for the simulations. Following are highlights from an interview with the Tokai team that discussed the educational advantages and usability of SC/Tetra in this challenging environment.


 
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