Abstract In order to fully exploit the potential of rapidly progressing digitalisation technical systems, it is necessary provide reliable and significant process condition related data. this context, solutions are especially aspired allow a simple integration into surrounding system influence as little possible. The main challenges regarding measurement data in operation control systems well test environments identified presented at beginning article. A promising approach meet resulting...

Repetitive overhead work with a heavy load increases the risk for work-related shoulder disorders. Occupational exoskeletons supporting arm elevation are potential solutions to reduce that by lowering physical strains on shoulder. Many studies have reported reduction in stress various tasks using such exoskeletons. However, support demand can vary each phase of motion as well individual task. This paper presents laboratory study five participants evaluate influence level an active...

Abstract This paper presents an approach for evaluating exoskeleton support concepts through biomechanical analyses on a musculoskeletal human model. By simplifying the forces of as external forces, different can be biomechanically evaluated respective use case without concrete design specifications exoskeleton. enables estimation resulting relief and strain body in early stages development. To present approach, working at above head height with power tool is chosen.

We present a multi-axis force sensor capable of measuring both axial forces and bending moments that is integrable into cavity within M20 bolt. This cavity, which reduces the resilience bolt by 23.5 %, and, thus, corresponds to reduction only one strength class, designed conducting finite element analysis. The featuring diameter 13.9 mm length 19.5 based on deformation body consists three beams. manufactured applied with strain gauge each inner outer beam surface providing half-bridge...

As more and consumer grade sensors are integrated into products such as handheld power tools, data acquisition is becoming affordable. The product development process benefits greatly from the knowledge of incidence relevance applications performed by a user. Using collected sensor remains challenge due to noise caused complexity applications. In this study, use machine learning on time series identify which predefined user with tool, using an angle grinder cordless screwdriver example,...

State of the art vibration-based condition monitoring at gearbox housings faces uncertainties in interpretation measurement data due to signal transformations and noise. The state research shows that direct measurements source vibrations with integrated sensors provide higher quality data. Capacitive MEMS seem predestined for integration, but there is limited covering compactly sensor systems by vibration measurement. In this contribution an system designed methodically based on VDI 2206. A...

Engineering competence and the digitization of all processes along product development process are highly decisive for today's success industrial companies. The design is very individual strongly based on engineers' experience. Part this knowledge result approach fixated in existing variations generations, but difficult to extract formalize. Conclusions about design-related patterns between products different generations or variants can be drawn from model tree representing engineer's...

Abstract The Circular Factory reprocesses used products into current-generation products, aiming for perpetual innovation. This requires predicting the reliability of a product’s components and subsystems throughout its use life. Each product within exhibits unique life cycles processes, necessitating instance-specific models. study introduces novel methodical approach modeling tailored to challenges Factory, illustrated through case on angle grinders. consists four steps: Developing...

Abstract In design engineering, the early consideration of tolerance chains contributes to robust design. For this, a link and tolerancing domains is essential. This paper presents combination graph-based approach Contact Channel these domains. The combined applied at coinage machine. Here it provides detailed insights into state-dependent relations embodiment functions, which can improve robustness evaluation concept. shows possibility bridge gap between

Abstract Purposeful qualitative modelling of embodiment function relations is a challenge in design. This contribution investigates the applicability and usefulness Contact Channel Approach as approach survey study. From 23 development research projects, advantages challenges regarding are identified. A further result that many different models used additionally to Approach. Based on findings, potential for optimization links other emerges.

Abstract Due to the falling costs of computational resources and increasing potential data acquisition, interest in digital twins, a virtual copy physical original, their industrial application is increasing. Nevertheless, there limited published work on how support process twinning what its key aspects are. The aim this study present insights with regards gained from modelling projects mechatronic product development. We conducted survey in-depth interviews members projects. In surveys we...

Abstract Gear tooth wear is a common phenomenon leading to malfunctions in machines. To detect and faults, gear condition monitoring by vibration established. The problem that the measurement data quality for detection of not good enough with currently established methods, caused long signal paths commonly used housing mounted sensors. In-situ sensors directly at achieve better quality, but are yet proved detection. Further it unknown what analysis methods suited in-situ sensor data....

Tool forces are a decisive parameter for manual grinding with hand-held power tools, which can be used to determine the productivity, quality of work result, vibration exposition, and tool lifetime. One approach force determination is prediction via measured operating parameters tool. The problem that accuracy consumer-grade sensors remains unclear in grinding. Therefore, using Gaussian process regression examined study two angle grinders four different applications three directions...

For the control of dynamic systems such as an Electro-Hydraulic Actuator (EHA), there is a need to optimize based on simulations, since prototype or physical system usually not available during design. In consequence, no identification can be performed. Therefore, it unclear how well simulation model EHA used for multicriteria optimization position due uncertain quality. To evaluate suitability optimization, modeled and parameterized grey-box using existing parameters independent test bench...

In dieser Arbeit werden zwei Antriebsstrangprufstande zur Ableitung von Konstruktionszielgrosen fur Antriebssysteme handgehaltener Power-Tools entwickelt, verifiziert und beispielhafte Zielgrosen die Konstruktion ermittelt. Durch physische Komponententests unter Einbindung in Umgebungssysteme wird es moglich, Antriebskomponenten fruh im Produktentwicklungsprozess zu untersuchen aufeinander abzustimmen. Besondere Vorteile bietet dies fruhen Produktentwicklungsphasen, denen noch nicht alle...

Validation is important for a high product quality of drive components. An X-in-the-Loop test bench enables the integration scaled prototypes through coupling systems and scaling models even before serial parts are available. In context X-in-the-loop investigations, it still unclear whether model early investigation geometry variants in powertrain subsystems. this paper, experiments taking into account interacting system considered to evaluate terms variants. The aim paper functional...