Lies, Damned Lies, and Simulation Results: How to Change the Conversation and Build a Thriving Simulation Ecosystem

2021 ◽  
Author(s):  
Bipin Kashid ◽  
Mitch Eichler
Keyword(s):  
Value Chain ◽  
High Performance ◽  
New Technology ◽  
Analytical Models ◽  
Element Analysis ◽  
Valve Development ◽  
Industry Standards ◽  
Digital Twins ◽  
Blowout Preventer ◽  
Performance Teams

Abstract Engineering simulation has become the pivotal tool for research and development in industries including offshore oil & gas, aerospace, automotive, mobile/off-highway, health care, and others. This case study will explore the financial and time-based savings achieved through detailed simulations and a system-based design approach in two hydraulic valve development projects. The applications in this scope include subsea blowout preventer and off-highway mobile equipment controls. Tools like 1D system simulation, computational fluid dynamics, and finite element analysis are widely accepted; verification and validation (V&V) of these models is imperative in building confidence in simulation. Some V&V reference standards have been developed by groups like ASME and API, but they do not encompass all aspects of simulation regularly utilized by the modern analyst. This places the onus for the creation of V&V guidelines onto individual analysts and their respective employers. Lack of detail in these guidelines can lead to flawed interpretations of results and a corresponding loss of trust in analytical methods. Interdisciplinary organizations can provide forums to help bridge these gaps and create more comprehensive V&V guidelines. Through a study of the development cycles of a subsea valve and an off-highway mobile valve, examples will be outlined which illustrate the benefit of extensive upfront simulation validated by physical testing. Simulation work serves as a cost avoidance measure against many cycles of building and testing prototypes beyond what is truly required in the early stages of design. Accurate simulation is a key component of successful product development, but another often neglected factor is the collaboration between subject matter experts from the component suppliers and the OEM or system integrator. High performance teams comprised of seasoned designers, analysts, and market experts can collaborate to create devices that excel when integrated into a final product. Component designers may wish to isolate the design problem to the component in question, but critical engineering detail will be missed by avoiding a system approach. Expanding the scope of the design analysis to include as much of the application as possible as well as utilizing V&V techniques (beyond minimum industry standards) is key to ensuring that laboratory test data is representative of how a product will perform in its intended application. As the industry continues to evolve, powerful digital twins of systems like blowout preventers can be used for OEM validation of new technology proposed for these systems. However, the fidelity of these digital twins is contingent upon the inputs from thoroughly validated analytical models of the components that comprise the system. By collaborating across the customer-supplier value chain and investing heavily in simulation, offshore manufacturers can strategically position themselves to win in times when both customer expectations and the costs of failure are at an all-time high.

Thermal Modeling of Plastic Ic Packages

1991 ◽  
Vol 226 ◽  
Author(s):  
A. Bar-Cohen ◽  
Devin E. Mix
Keyword(s):  
Integrated Circuit ◽  
High Performance ◽  
Failure Modes ◽  
Material Selection ◽  
Thermal Modeling ◽  
Temperature Fields ◽  
Analytical Models ◽  
Element Analysis ◽  
Component Reliability ◽  
Thermal Expansion Coefficients

AbstractThe successful design of plastic integrated circuit packages for high performance VLSI chips is a crucial element in the development of costeffective packaging technology. Unfortunately, however, most common plastic encapsulating and die-bonding materials provide relatively low thermal conductivities and large thermal expansion coefficients, as well as low mechanical strengths and a limited operating temperature range. These material properties combine to produce a large number of thermally induced package failure modes. Thus, insightful material selection and detailed design, based on extensive thermal modeling/analysis, must be performed to achieve acceptable levels of component reliability.This paper begins with a discussion of the temporal development of the temperature fields inside a plastic IC package and continues with the presentation of transient and steady-state, first-order analytical models for: the chip temperature, the temperature and gradient across the die bond, and the half-thickness encapsulant temperature. The values obtained for a typical PDIP package are discussed and compared to the results of a finite-element analysis of this package. The insights obtained from these analyses are used to develop material Figures-of-Merit that can be used in the selection of die-bond and encapsulant materials for plastic IC packages.

Polyamide 4T: A New Lead-Free Solderable Polymer Enabling Packaging Technology Through Micro Molding and LDS

2010 ◽  
Vol 2010 (DPC) ◽  
pp. 001563-001584
Author(s):  
Tamim Sidiki
Keyword(s):  
Value Chain ◽  
High Speed ◽  
High Performance ◽  
New Technologies ◽  
New Technology ◽  
Three Dimensional ◽  
Common Mode ◽  
Packaging Technology ◽  
Semiconductor Chip ◽  
High Flexibility

The continuous trend towards convergence and miniaturization is recently generating significant interest in new technologies for Electronics. This requires the integration of Semiconductors and Magnetics, two entirely different industries with different players in the value chain. In this paper, we demonstrate, a packaging technology which allows three dimensional stacking of Magnets and Semiconductors. We realized the integration of a Semiconductor chip - which provides protection against electro static discharge (ESD) – and a common mode filter (CMF) into one thermoplastic package. For the first time ever, this filter is integrated directly into the thermoplastic part which is used as the substrate, filter and housing at the same time. Laser direct structuring in combination with Stanyl® ForTiiTM as an ultra high performance, entirely halogen-free high temperature thermoplastic omits any wires for the realized coil, and also facilitates high flexibility in design and manufacturing, allowing ultra small footprints and the realization of components suitable for surface mount technology. As an example of this new technology, we demonstrate a component which can provide full ESD protection and common mode filtering for a high speed USB2.0 interface.

The Recent Revolution in High Performance Computing

MRS Bulletin ◽  
1997 ◽  
Vol 22 (10) ◽  
pp. 5-6
Author(s):  
Horst D. Simon
Keyword(s):  
High Performance Computing ◽  
High Performance ◽  
New Technologies ◽  
New Technology ◽  
Parallel Architecture ◽  
Time Frame ◽  
Good News ◽  
Computing Industry ◽  
Time And Energy ◽  
Performance Computing

Recent events in the high-performance computing industry have concerned scientists and the general public regarding a crisis or a lack of leadership in the field. That concern is understandable considering the industry's history from 1993 to 1996. Cray Research, the historic leader in supercomputing technology, was unable to survive financially as an independent company and was acquired by Silicon Graphics. Two ambitious new companies that introduced new technologies in the late 1980s and early 1990s—Thinking Machines and Kendall Square Research—were commercial failures and went out of business. And Intel, which introduced its Paragon supercomputer in 1994, discontinued production only two years later.During the same time frame, scientists who had finished the laborious task of writing scientific codes to run on vector parallel supercomputers learned that those codes would have to be rewritten if they were to run on the next-generation, highly parallel architecture. Scientists who are not yet involved in high-performance computing are understandably hesitant about committing their time and energy to such an apparently unstable enterprise.However, beneath the commercial chaos of the last several years, a technological revolution has been occurring. The good news is that the revolution is over, leading to five to ten years of predictable stability, steady improvements in system performance, and increased productivity for scientific applications. It is time for scientists who were sitting on the fence to jump in and reap the benefits of the new technology.

Parallel Computing for Tire Simulations

2011 ◽  
Vol 39 (3) ◽  
pp. 193-209 ◽  
Author(s):  
H. Surendranath ◽  
M. Dunbar
Keyword(s):  
High Performance ◽  
Effective Means ◽  
Cost Effective ◽  
Turnaround Time ◽  
Careful Consideration ◽  
Rolling Contact ◽  
Element Analysis ◽  
Parallel Solvers ◽  
Design Changes ◽  
Highly Nonlinear

Abstract Over the last few decades, finite element analysis has become an integral part of the overall tire design process. Engineers need to perform a number of different simulations to evaluate new designs and study the effect of proposed design changes. However, tires pose formidable simulation challenges due to the presence of highly nonlinear rubber compounds, embedded reinforcements, complex tread geometries, rolling contact, and large deformations. Accurate simulation requires careful consideration of these factors, resulting in the extensive turnaround time, often times prolonging the design cycle. Therefore, it is extremely critical to explore means to reduce the turnaround time while producing reliable results. Compute clusters have recently become a cost effective means to perform high performance computing (HPC). Distributed memory parallel solvers designed to take advantage of compute clusters have become increasingly popular. In this paper, we examine the use of HPC for various tire simulations and demonstrate how it can significantly reduce simulation turnaround time. Abaqus/Standard is used for routine tire simulations like footprint and steady state rolling. Abaqus/Explicit is used for transient rolling and hydroplaning simulations. The run times and scaling data corresponding to models of various sizes and complexity are presented.

scholarly journals Future Power Train Solutions for Long-Haul Trucks

2021 ◽  
Vol 13 (4) ◽  
pp. 2225
Author(s):  
Ralf Peters ◽  
Janos Lucian Breuer ◽  
Maximilian Decker ◽  
Thomas Grube ◽  
Martin Robinius ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Co2 Emissions ◽  
Value Chain ◽  
Large Scale ◽  
New Technology ◽  
Co2 Reduction ◽  
Road Transport ◽  
Transport Sector ◽  
Long Distance ◽  
Production Of Hydrogen

Achieving the CO2 reduction targets for 2050 requires extensive measures being undertaken in all sectors. In contrast to energy generation, the transport sector has not yet been able to achieve a substantive reduction in CO2 emissions. Measures for the ever more pressing reduction in CO2 emissions from transportation include the increased use of electric vehicles powered by batteries or fuel cells. The use of fuel cells requires the production of hydrogen and the establishment of a corresponding hydrogen production system and associated infrastructure. Synthetic fuels made using carbon dioxide and sustainably-produced hydrogen can be used in the existing infrastructure and will reach the extant vehicle fleet in the medium term. All three options require a major expansion of the generation capacities for renewable electricity. Moreover, various options for road freight transport with light duty vehicles (LDVs) and heavy duty vehicles (HDVs) are analyzed and compared. In addition to efficiency throughout the entire value chain, well-to-wheel efficiency and also other aspects play an important role in this comparison. These include: (a) the possibility of large-scale energy storage in the sense of so-called ‘sector coupling’, which is offered only by hydrogen and synthetic energy sources; (b) the use of the existing fueling station infrastructure and the applicability of the new technology on the existing fleet; (c) fulfilling the power and range requirements of the long-distance road transport.

Accelerated testing of super lightweight UHPC waffle deck under heavy vehicle simulator

2021 ◽  
Vol 16 (2-3) ◽  
pp. 61-74
Author(s):  
Sahar Ghasemi ◽  
Amir Mirmiran ◽  
Yulin Xiao ◽  
Kevin Mackie
Keyword(s):  
High Performance ◽  
Failure Modes ◽  
High Performance Concrete ◽  
High Strength ◽  
Heavy Vehicle ◽  
Wheel Load ◽  
Element Analysis ◽  
Vehicle Simulator ◽  
Pavement Testing ◽  
Heavy Vehicle Simulator

A super lightweight deck can enhance load rating and functionality of a bridge, especially those identified as structurally deficient. This study was aimed to develop and experimentally validate a novel bridge deck as an ultra-lightweight low-profile waffle slab of ultra-high-performance concrete (UHPC) with either carbon fiber reinforced polymer (CFRP) or high strength steel (HSS) reinforcement. The proposed system lends itself to accelerated bridge construction, rapid deck replacement in bridges with load restrictions, and bridge widening applications without the need to replace girders. Performance and failure modes of the proposed deck were initially assessed through extensive lab experiments and finite element analysis, which together confirmed that the proposed deck panel meets the AASHTO LRFD requirements. The proposed deck system is not susceptible to punching shear of its thin slab and fails in a rather ductile manner. To evaluate its long-term performance, the system was further tested under the dynamic impact of wheel load at the Accelerated Pavement Testing (APT) facility of the Florida Department of Transportation using a Heavy Vehicle Simulator (HVS).

scholarly journals Electromagnetic-Thermal Integration Design of Permanent Magnet Motor for Vehicles

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Shijun Chen ◽  
Qi Zhang ◽  
Surong Huang
Keyword(s):  
Permanent Magnet ◽  
High Performance ◽  
Design Method ◽  
Electromagnetic Properties ◽  
Permanent Magnet Motor ◽  
Element Analysis ◽  
Experiment Platform ◽  
Motor Design ◽  
Dimensional Parameters ◽  
Thermal Integration

To more efficiently design high performance vehicular permanent magnet motor, an electromagnetic-thermal integration design method is presented, which considers both the electromagnetic properties and the temperature rise of motor winding when determining the main dimensional parameters of the motor. Then a 48-slot and 8-pole vehicular permanent magnet motor is designed with this method. The thermomagnetic coupling design is simulated and validated on the basis of multiphysical domain on finite element analysis. Then the prototype is analyzed and tested on a newly built motor experiment platform. It is shown that the simulation results and experimental results are consistent, which validate the accuracy and effectiveness of the new design method. Also this method is proved to well improve the efficiency of permanent magnet motor design.

scholarly journals High-performance magneto-rheological clutches for direct-drive actuation: Design and development

2021 ◽  
pp. 1045389X2110069
Author(s):  
Sergey Pisetskiy ◽  
Mehrdad Kermani
Keyword(s):  
High Performance ◽  
Degrees Of Freedom ◽  
Dynamic Range ◽  
Complete Analysis ◽  
Mass Ratio ◽  
Direct Drive ◽  
Element Analysis ◽  
Prototype Development ◽  
Magneto Rheological ◽  
Hall Sensors

This paper presents an improved design, complete analysis, and prototype development of high torque-to-mass ratio Magneto-Rheological (MR) clutches. The proposed MR clutches are intended as the main actuation mechanism of a robotic manipulator with five degrees of freedom. Multiple steps to increase the toque-to-mass ratio of the clutch are evaluated and implemented in one design. First, we focus on the Hall sensors’ configuration. Our proposed MR clutches feature embedded Hall sensors for the indirect torque measurement. A new arrangement of the sensors with no effect on the magnetic reluctance of the clutch is presented. Second, we improve the magnetization of the MR clutch. We utilize a new hybrid design that features a combination of an electromagnetic coil and a permanent magnet for improved torque-to-mass ratio. Third, the gap size reduction in the hybrid MR clutch is introduced and the effect of such reduction on maximum torque and the dynamic range of MR clutch is investigated. Finally, the design for a pair of MR clutches with a shared magnetic core for antagonistic actuation of the robot joint is presented and experimentally validated. The details of each approach are discussed and the results of the finite element analysis are used to highlight the required engineering steps and to demonstrate the improvements achieved. Using the proposed design, several prototypes of the MR clutch with various torque capacities ranging from 15 to 200 N·m are developed, assembled, and tested. The experimental results demonstrate the performance of the proposed design and validate the accuracy of the analysis used for the development.

Pursuit of Operational Excellence

2016 ◽  
Vol 3 (2) ◽  
pp. 21-34
Author(s):  
Christine Welch ◽  
Tammi Sinha ◽  
Nigel Ward
Keyword(s):  
Change Management ◽  
Continuous Improvement ◽  
High Performance ◽  
Effective Leadership ◽  
Value Systems ◽  
Goods And Services ◽  
Team Working ◽  
Performance Teams ◽  
Operational Excellence

Operational Excellence (OE) is achieved when high performance teams are seeking for continuous improvement in well-designed processes, using appropriate tools and technologies. Excellence is underpinned by a philosophy in which problem-solving, team-working and effective leadership combine to focus upon customer needs, and all employees are empowered to act to maintain optimal flows of value. OE is clearly a desirable quality of organizations seeking both effectiveness and efficiency in their production of goods and services for customers. OE is underpinned by concepts such as team-working, effective leadership and change management, and depends upon effective flows of value. Systems Thinking (ST) is consequently at the heart of genuine excellence. This paper was conceived in the context of a Community of Practice of business improvement professionals, who took Operational Excellence as their agenda for inquiry during sessions in 2015. Reflection upon practice discussed at these meetings, together with the literature of change management and continuous improvement, have led to development of a systemic ‘landscape' model for pursuit of Operational Excellence. The elements of this model are set out, showing how they can contribute to OE.

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