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How Smart Engineering “Schools” Are Influencing Heavy Equipment Design

Oct. 29, 2018
The Industrial Internet of Things is impacting several industries, including heavy machinery equipment like tractors and excavators. The following case studies from Siemens PLM Software showcase exactly how heavy equipment design is changing.

Not many people think of excavators, bulldozers, and tractors as innovative products. However, the same foundational technologies powering drones and autonomous cars can be used to streamline heavy equipment development and provide more in-demand user features.

Smart engineering is driving change in all stages of these products’ lifecycles. Data captured throughout a machine’s use inform innovation that:

  • Supports holistic simulation testing. As machine autonomy increases, the number of test scenarios grow exponentially. Physical test runs are impractical; virtual proving grounds ensure critical scenarios are repeatedly tested as designs improve.
  • “Designs in” high-value services such as predictive maintenance, remote diagnostics, and product customization. Smart engineering engages and traces both mechanical and software-driven features. This becomes especially important for optimal servicing.
  • Automates tasks that previously required manual intervention. These upgrades make up for skills and expertise that novices lack and relieve fatigue among veteran operators. In addition, they help protect machinery by overriding manual commands to prevent accidental overloading or other damage.
  • Feeds continuous improvement of existing and new products. Real-time global field data has a positive impact on design, engineering, and manufacturing stages of product lifecycle management (PLM).

Sensors collect and analyze weather and field conditions, so equipment can react autonomously to environmental factors.

Lower Costs, Higher Performance

The necessary components for smart machine capability are a digital simulation for the creation of a digital twin; sensors for testing and monitoring; Internet of Things (IoT) networking; and PLM software to orchestrate connectivity and action.

Sensors linked to a digital twin communicate issues from the real machine and enable prompt resolution. The digital twin also gives engineers a virtual means to adapt mechanical, electrical, software, control, and hydraulic functions in the design process; validate designs earlier; and test systems with exceptional efficiency and elegance.

By making their machines smarter, manufacturers gain leverage in reducing the total cost of ownership and performance for machine users. In the instance of leveling a road, a construction crew can get the perfect level and incline in just one run. As earth goes up or down, a sensor in the machine recognizes its level and brings the grader down to meet the grading component.

In agriculture, soil additives, genetically modified seeds, better planting strategies, and highly productive equipment have practically tripled yields over the past 60 years.

Farmers want to keep the momentum and marketable differentiation going. Netherlands-based AGCO adopted Siemens’ product lifecycle management (PLM) technology to automate boom height adjustment, minimize vehicle-induced boom vibrations, and extend ride time and fertilizer distribution on its crop sprayers.

Using sensor data and PLM software, AGCO designed automated and cab-controlled accommodations for varying field terrain and crop heights. The adjustments aid inexperienced operators and enable farmers to accurately and comfortably finish the job.

Better Design, Faster Time-to-Market

Today’s heavy equipment machinery—equipped with increasingly intelligent embedded systems run by engineering control units, sensors, and actuators—is smarter than ever before.

Manufacturers add value to their product lines faster and get new designs to market more quickly.

Traditionally, heavy equipment design validation takes three to nine months and encompasses an extensive instrumentation process, experimental analysis by field engineers, and issue resolution by office-bound design engineers.

Through smart engineering, manufacturers can model machines from the sub-system to the vehicle and environment level to accurately simulate vehicle performance and behavior rather than testing physical prototypes. With information from sensors, design and field engineers can work together through a live system and reduce the time required for field tests by 30%.

For example, when Poclain Hydraulics wanted to improve the performance of hydrostatic systems, it used digital simulation to test concepts. The simulated testing lowered costs and sped up the design process, ultimately producing a new and better solution.

PLM technology collects data on a global level that can be transmitted back to design engineers, allowing them to iterate on a design faster based on actual use.

Durability Achieved at a Competitive Pace

One of the critical metrics for assessing the value of heavy machinery equipment is durability. While always a goal of manufacturers, achieved durability traditionally involves time-intensive practices, such as testing sensor placement for the collection of necessary data and sifting through unnecessary data to identify best practices and leverageable learning.

Through smart engineering, manufacturers can achieve reliable durability, eliminate most assumptions, and move products to market at a faster rate.

Dana Advanced Engineering achieved this by developing an integrated powertrain design using PLM software. The software’s simulation capabilities enabled the company to meet durability, adaptability, energy-efficiency, and cost concerns without multiplying time in the test or vehicle labs.

Instead, Dana used model-based systems engineering simulation in all phases of the development cycle. This simulation sped up design evaluation, effective integration, controls development, and performance testing by:

  • Reducing modification evaluation from more than a week to one day
  • Requiring fewer physical testing loops
  • Debugging controls in simulation
  • Reducing damage to system hardware

Greater Accomplishment with Fewer Resources, Less Effort

Strategically placed sensors connected to software that optimizes the collected data with analytical intelligence enables manufacturers to quickly relieve specific user pain points or resolve inefficiencies.

For example, a hydraulic pressure pump responsible for the arm of an excavator may overheat in the field, prompting the supplier to test the pump under different conditions. The offending pump could be replaced in the excavator and its design modified for the next generation of products.

Or a machine designed to have a load capacity of 20 tons may require a capacity of only 10 or 12 tons given the information provided continuously through sensors. As a result, the manufacturer might design a machine with a lower load capacity, realizing savings that could be passed on to buyers of the next generation of products.

Furthermore, equipment built with sensors and IoT capabilities collect and analyze environmental information, then react autonomously. Because environmental factors commonly affect heavy equipment operations, and control system-level field and weather condition inputs via sensor models, they alleviate both safety and productivity concerns.

PLM Software is Essential

A full-feature PLM solution is required to unite the data, integrate OEM disciplines, monitor project requirements, share project progress, and implement the holistic potential of smart engineering.

Smart engineering also requires a methodology and a platform such as Systems Driven Product Development methodology on the open-by-design PLM platform.

This model-based, systems-based approach provides thousands of features and hundreds of thousands of requirements, making the number of potential configurations almost limitless. Plus, a single platform for smart engineering activity best supports continuous improvement, continuous integration, and full-system verification and validation.

Siemens PLM technology provides a setup that makes it fast and straightforward to collect data on a global level. Through the technology, data flows back to design engineers, allowing them to iterate on a design faster, and with trustworthy requirements based on actual use locations.

Making Heavy Machinery Work Easier

Heavy machinery equipment manufacturers that offer autonomous or semi-autonomous functions, customized capabilities, or remote monitoring and proactive service will be ahead of competitors. Users will seek out these features as they look to complete projects faster, with higher accuracy and fewer resources.

The capture of rich and highly relevant data in the field and in the lab informs the entire PLM, from concept to design and development to manufacturing and operations. To embrace smart engineering, OEMs must adopt advanced technology—smart solutions—to create, simulate, test, learn, and iterate on innovative machinery.

Rahul Garg is vice president for industrial machinery and heavy equipment at Siemens PLM Software.

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