This paper presents a 28GHz low noise amplifier (LNA) implemented in 22nm FDSOI technology. The LNA is based on inductively degenerated common source topology with cascode device. With several special layout techniques, the achieved best class figure (NF). At 28GHz, has gain of 12dB, input referred third-order intercept point (IIP3) 3.0dBm and reference 1-dB compression (IP1dB) - 7.6dBm. 3-dB bandwidth 8.5GHz 15.1GHz, respectively. lowest NF 1.46dB at 24GHz power dissipation (PDC) 9.8mW....

Abstract In gearboxes, rolling bearing power losses often make up a large amount of the total gearbox losses. Therefore, an exact calculation is very important for resource and energy efficient design. The state art offers numerous friction methods with different levels detail to calculate bearings. Bearing manufacturers like SKF Schaeffler offer popular bearing-based/global standard Contact-based/local can consider wider application field by generalization tribological relations, which...

Abstract Increasing the speed of electric motor can significantly improve power density powertrain EVs (Electric Vehicles), resulting in a smaller size and thus weight cost advantages. Achieving acceptable NVH behavior becomes more difficult at higher speeds, partly because excitation frequencies gears cover wider frequency range therefore natural also be directly excited. In Speed4E joint research project, high-speed electromechanical was developed, manufactured, tested to investigate main...

Condition monitoring systems are widely used in gearboxes. Gears one of the most crucial components for power transmission. Hence, optimal sensor positions condition gears should be investigated to maximize reliability and minimize costs. This work aims analyze measured signals from rotating sensors at compare them housing find suitable gears. Additionally, rotational speed external torque influences on signal quality have been investigated. These compared with a simulation model, which...

Face gear drives are angular units in which an involute pinion meshes with a face wheel. Spur and helical possible or without center offset. can be manufactured on conventional cutting machines. Furthermore, the is free to move axially such displacements have no effect contact pattern. This makes them promising gearing for various applications. Due lack of established calculation standards, design challenge often results oversizing early failures. may also why not yet themselves power...

In order to achieve the European Commission’s ambitious climate targets by 2030, BEVs (Battery Electric Vehicles) manufacturers are faced with challenge of producing more efficient and ecological products. The electromechanical powertrain plays a key role in efficiency BEVs, which is why design parameters development phase powertrains must be chosen carefully. One central maximum speed electric machines gear ratio connected transmissions. Due relationship between torque, it possible compact...

Abstract For the development of high power density gearboxes knowledge gear mesh behavior is important. Especially, tooth deflection influences flank load distribution and basis for design modifications. Analytical numerical approaches are suitable to evaluate behavior. Since methods complex, elaborate time-consuming, fast accurate analytical still important worth be further developed assessed. An method calculating deformation gears goes back Weber Banaschek from 1953. In initial work final...

Abstract Properties and environmental dependencies of mechatronic components like gear-drives motors impact the overall performance automated Production Systems. These properties, often in form characteristic curves, are only accessible from suppliers’ documents, operating instructions or online catalogs. The proposed SysML’ profile integrates artifacts SysML UML into disciplinary views. It includes a reference mechanism to REXS (standard for gear properties) ECLASS product data UNSPSC)...

Abstract Due to the growing need for gearboxes be as lightweight and efficient possible, it is most important that gear mesh’s potential utilized well possible. One way of doing define a flank modification optimally distributes load over flank. Best practice defining manually check out distribution value modification. In general, this an iterative method get distributed load. This can also automated. To do this, deformations gearbox (shafts, bearings, mesh) are calculated. With those...

Classical machine elements have been around for centuries, even millennia. However, the current advancement in Structural Health Monitoring (SHM), together with Condition (CM), requires that should be upgraded from a not-simple object to an intelligent object, able provide information about its working conditions surroundings, especially health. integration of electronics mechanical component may lead reduction load capacity since need modified order accommodate them. This paper describes...

Companies producing Robot-Like Systems (RLS) must increase efficiency in design and production order to stay competitive the international market. Such RLS range from small SCARA robots entire facilities. Very different systems for similar tasks are published research or offered A clear path an optimal configuration a given task is apparently not available engineer. This indicates that gear drives of such their integration with automation technology still insufficiently researched, efficient...

Abstract Monitoring systems for rolling contacts in machinery are widespread. There multiple solutions various applications like Health Usage Systems (HUMS) Helicopters and smart bearings from different manufacturers. The number of possibilities is rising. This paper outlines how the vibrational behavior depends on measuring position outside inside gearbox. effect sensor location evaluated by examining locations close to main excitation gearboxes—the loaded tooth contact—as well as positions...

This paper presents a 60 GHz, 34% tuning range mm-wave voltage-controlled oscillator (VCO). The VCO is fabricated in GLOBALFOUDRIES 22 nm FDSOI (22FDX <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">TM</sup> ) process. Switched capacitor based array covers frequency from 51 GHz to 72 GHz. A novel back-gate controlled varactor used achieve low Kv of 680 MHz at 57 carrier frequency. power dissipation core 7.5 mW 0.7 V supply when it operates phase...

Abstract Planetary gearboxes are becoming more popular due to their high-power density and potentially high efficiency. When the planet bearings internally mounted, body of gear has be hollow. The demand for large outer diameters high-load requirements might result in a small rim thickness. Depending on thickness, its rigidity may become very low. Due low stiffness special load conditions caused by double meshing, deformation unique. In this paper, influence thickness bearing lifetime is...

Gear flank changes caused by wear do not only affect the dynamic behavior of gear systems, but they can also compromise load-carrying capacity teeth up to critical failure. To help avoid unintended consequences like downtime or safety risks, a condition monitoring system needs be able estimate current during operation based on available sensor measurements. While many approaches in research rely vibrational analysis with manual feature engineering, gearboxes running at slow speed reveal much...

Abstract One of the central goals during design helical gear systems is achievement a well-distributed contact load in mesh. An equal distribution key factor for high carrying capacity, economic use materials and long lifetime. Mesh misalignment can be caused by tooth deflections, manufacturing deviations or elastic deformation shaft-bearing system gearbox housing. Those deformations have to taken into account process adequate tooth-flank geometry. Elastic housings significant, especially...

Precise information about the load distribution in tooth contact can improve quality of calculation results regarding strength and durability spur helical gear stages. A method measuring stages lab conditions has been developed. The basic idea is, that tangential deformations on backside a loaded flank are directly linked to flank. procedure detect aforementioned measurement be compared calculated distributions with two methods. first is generate out by using finite element (FEM). so...

Abstract Due to their compactness and power density, planetary gearboxes are used for a wide range of high-performance applications in the automotive, aviation marine sector. Aerospace particular benefit from full use load capacity potential meet requirements lightweight construction efficiency. Against this background, sharing between individual gears plays decisive role. A uniform enables design single tooth meshes without increases oversizing. However, due manufacturing assembly...

Abstract The electrification of vehicle powertrains and the expected engineering labor shortage are ongoing key challenges in gear transmission development. Because traditional methods reach limits, solution is further automating design process while enabling flexible optimal solutions even with rapidly changing constraints requirements. We therefore review current process, state-of-the-art for automated design, evaluate their potential combination using machine learning methods. In focus...