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Internal Research Fellow PostDoc in OptoMechanical Structural Assessment of Space Systems

2017-09-21 13:11:04| Space-careers.com Jobs RSS

Research fellowship opportunity in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in OptoMechanical Structural Assessment of Space Systems This post is classified F2 on the Coordinated Organisations salary scale. Location ESTEC, Noordwijk, The Netherlands Description The Structures, Mechanisms and Materials Division is the centre of competence for the Agency in all areas related to spacecraft and launcher structures, mechanisms and materials and processes. This encompasses spacecraft and launcher lightweight structures, stable structures, structural dynamics, damage tolerance, deployable structuresbooms, active structures, holddown and release devices, electrical motors for space mechanisms, launcher and reentry vehicles, hot and cold structures, landing attenuation systems, seals, valves, parachute systems, separation systems, solar array drive mechanisms, reaction wheels, pointing mechanisms, pyrotechnics, bearings and tribology aspects, all materials and associated manufacturing processes as well as their development, characterization, verification and qualification and related failure investigations. The Division provides support to projects, preparatory programmes and technology programmes. Within this frame, the Structures Section is in charge of all structural engineering aspects. Interested candidates are encouraged to visit the ESA website related to the Divisions activities. Fields of activitiesresearch The proposed activity will involve integrating thermal, materials, mechanical, structural and optical domains into a multidisciplinary process with the aim of enabling a deterministic assessment of, for example, optical performance. The successful candidate will be assigned to the Structures Section and will work on the conception, analysis and development of analysis methodologies and software tools for optomechanical analysis and will work closely with mechanical, thermal, materials and optical engineers. In this context, the Research Fellow will be asked to participate in one or more of the following activities Structural modelling and analysis of optical components, optomechanical assemblies and optical payloads to assess structural integrity, dimensional stability and material selection for architecture downselect Thermoelastic structural analysis to evaluate the pointing control and stability, wave front error, coregistration and alignment of optical components and payloads Development of analysis software tools with a focus on optomechanical analysis Evaluation or benchmarking of relevant commercial software tools Support materials test programmes for the evaluation of the mechanical and thermal properties of optical materials, coatings and adhesives Support mechanical and optical test programmes, including the development and application of tools for mathematical model correlation between analytically predicted and experimentally validated optical alignment, coregistration and wavefront error. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Self Motivation Communication Problem Solving Relationship Management CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD in mechanical engineering, with some background in the topics to be addressed e.g. structural analysis, materials, optics, mechanical and optical testing, software development. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements The candidate should have ideally participated in the design or development of ground or spacebased optical payloads or instrumentation. Some experience in the mechanical design, assembly, alignment and testing of optical instrumentation would be an asset. The Research Fellow must be able to work in a team with other international investigators in a spirit of positive cooperation and, at the same time, be capable of working autonomously in hisher area of research. At the end of the fellowship, the Research Fellow will be required to summarize the work completed in papers to be submitted to specialized conferencesjournals. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 19 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research. Candidates must also arrange for three letters of reference to be sent by email, before the deadline, to temp.htresa.int. The letters must be sent by the referees themselves. The candidates name must be mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research systems space internal

 

IUMI urges to enhance firefighting systems on board container ships

2017-09-21 01:00:00| Ship Technology

The International Union of Marine Insurance (IUMI) has unveiled a position paper urging improvements to firefighting systems on container vessels.

Tags: board systems ships enhance

 
 

Internal Research Fellow PostDoc in AOCS and Pointing Systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

Research Fellow opportunity in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in AOCS and Pointing Systems This post is classified F2 on the Coordinated Organisations salary scale. Location ESTEC, Noordwijk, The Netherlands Description Within the Systems Department, the GNC, AOCS and Pointing Division is responsible for Engineering and research and development of Attitude and Orbit Control Systems AOCS for satellites including Failure Detection Isolation Recovery FDIR Engineering and research and development of Guidance, Navigation and Control GNC systems for space vehicles including interplanetary cruise, aero assistance, precision landing, ascent, rendezvous and docking, reentry, formation flying and dragfree systems Technology development for AOCS and GNC sensors Endtoend engineering and research and development on high pointing accuracy systems Research and development of advanced control, estimation optimisation techniques and tools Development of control engineering standards in the frame of ECSS and ESA Standardisation Boards. Within the Division, the AOCS and Pointing Systems Section is specifically in charge of Designing and implementing Attitude and Orbit Control Systems AOCS for satellites and highaccuracy Pointing Systems Proposing and managing Mission Enabling Technology RD activities in the following areas Generic AOCS architecture Building Blocks Competitive Earth Observation, Telecom, Science AOCS associated FDIR High accuracy pointing Systems Technology development for AOCS sensors and electromagnetic actuators Research and development of advanced control techniques and tools Defining, maintaining and operating the necessary computing and laboratory facilities in support of the above activities. The section objectives more particularly related to the proposed Research Fellowship activities are highlighted in bold in the above list. Interested candidates are highly encouraged to visit the ESA website www.esa.int Fields of activitiesresearch Experimental validation of advanced active microvibration mitigation strategies. Attaining high pointing stability performance is a critical objective for many current and future space missions. As lineofsight stability requirements get tighter, mechanical vibrations become one of the key performance limiting factors. Commonly termed microvibrations, these lowamplitude disturbances span a wide frequency range from few Hz up to 1 kHz and are produced by a variety of mechanical and electrical spacecraft systems. Microvibrations can propagate, through the structure of the spacecraft, towards the various optical or communication systems severely degrading their performance. It is critical for mission success to design adequate vibration isolation systems that can minimize their impact. Pure passive isolators, such as the ones based on elastomeric materials, are the current baseline for microvibration mitigation to dampen highfrequency perturbations. Yet, passive isolation methods are limited in the lower part of the microvibration range and can be insufficient in terms of isolation performance. In order to overcome the frequency limitations of a purely passive approach and achieve broadband vibration isolation, the proposed research will focus on the design of a complementary active control strategy that primarly targets the lower range of the frequency perturbations such as the ones introduced by reaction wheels. In order to precisely tune these control strategies and guarantee both compliance with the mission pointing stability requirements and also safeguard against potential uncertainties or faults, accurate dynamic models of the endtoend system must be obtained. Mathematical models that reflect both the driving physical phenomena as well as uncertainties present in the system will be established and validated along the project. These models will supplement nonlinear simulations and capture the complex dynamic interactions between the microvibration sources, the isolation system, the spacecraft structural dynamics and the optical payload system. With this knowledge, a second objective of the study is to demonstrate the capabilities of a common unified framework in which system design, robust controller synthesis, parametric sensitivity and worstcase analysis can be rigorously performed using a common set of wellestablished mathematical tools. These analytical tools provide strong stability and endtoend performance guarantees in the face of uncertainty without relying on timeconsuming Monte Carlo simulations. In a natural way, adaptive control solutions with guaranteed stability and performance margins will be obtained by design. Finally, the project will lead to the development of an advanced experimental testbed that will serve as a validation platform for future microvibration control and high pointing stability research activities. Research Programme Specifics The Research Fellowship programme of work would be the following YEAR 1. Detailed problem Formulation, Requirements Capture, Model Identification and Setup of the Simulation and Experimental Platforms, Preliminary Controller Synthesis a Development of the simulation environment SimMechanics capturing the relevant dynamics of the experimental platform b From the physical high fidelity E2E model perform the derivation of adequate analysis and synthesis models that capture model uncertainties using a linear fractional representation c Model identification, validation and uncertainty quantification based on experimental results shall be performed via an experimental system identification campaign d Definition of performance and robustness objectives based on the physical limitations of the system. e Setup of the IQC robust analysis framework to validate and verify a given control law. f Baseline controller synthesis, experimental validation and comparative analysis of a series of classical vibration control algorithms. YEAR 2. Advanced Controller Synthesis and Fault Tolerant Design a development of modern robust control design methodology in order to synthesize a family of adaptive highperformance controllers for different levels of uncertainty b experimental demonstration and validation of the robust control laws for the plant subjected to different parametric variations. c Addition of Fault tolerant capabilities to the system. Implementation of FDI and reconfiguration mechanisms. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Self Motivation Communication Problem Solving Relationship Management CrossCultural Sensitivity Education Applicants must have recently completed, or be close to completion of a PhD in a related technical or scientific discipline, preferably Control Engineering. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements Applicants should have good analytical skills and be able to work in a multicultural environment in an autonomous manner. Applicants should have a methodical approach to their work and the ability to clearly document their work and results. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 18 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research. Candidates must also arrange for three letters of reference to be sent by email, before the deadline, to temp.htresa.int. The letters must be sent by the referees themselves. The candidates name must be mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research systems internal fellow

 

Internal Research Fellow PostDoc in modelbased Verification Validation of autonomous systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

Research Fellow opportunity in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in modelbased Verification Validation of autonomous systems This post is classified F2 on the Coordinated Organisations salary scale. Location ESTEC, Noordwijk, The Netherlands Description The Software Systems Division covers engineering, verification and validation techniques for space systems, in particular in the functional domain. This includes missioncritical software, software technology for flight as well as ground systems, realtime software embedded in spacecraft systems and payloads, but also ground facilities software, including electrical ground support equipment, test benches, databases and simulation and modelling tools. Future missions will rely on an increased level of autonomy to enable more complex missions and an increased performance. For the design of such missions, increased use is made of modelbased methods and tools, impacting the engineering information management along the lifecycle of the development. The impact of this evolution on the verification and validation process needs to be fully understood to ensure the required quality of these missions. Interested candidates are highly encouraged to visit the ESA website www.esa.int. Fields of activitiesresearch Future planetary exploration missions will require complex autonomous robotic systems. These systems will operate in a partially unknown environment and will feature adaptation and selfaware behaviour that could lead to emergent behaviour. To address the shortcomings of traditional Verification and Validation VV approach for space autonomous systems, the incremental development of the Harwell Robotics and Autonomy Facility HRAF has been initiated. The present development focuses on two out of three main activities of the VV process simulation and experimentation, with planetary rover as main application. In support of this development, the research will address formal methods and verification as part of the model based engineering process for specifying, developing, testing and evaluating space autonomous systems. As to achieve the proposed ambitious goal, these specific objectives are defined Identify gaps where traditional VV framework are misaligned or deficient for space autonomous systems Develop methods to automate requirements evaluation for testability and traceability Develop techniques to support appropriate decisions with traceable evidence during design phase Demonstrate the benefits and advantages of the research outcomes in HRAF. The research will entail SysML or equivalent modelling at system level, and mixed reality testing of autonomous robotic systems using HRAF HLA based distributed simulation environment. The post will involve collaboration across ESA directorates, academic and industrial partners. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Relationship Management Self Motivation Communication Problem Solving CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD in computer science, modelling methods, VV or systems engineering. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 18 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research. Candidates must also arrange for three letters of reference to be sent by email, before the deadline, to temp.htresa.int. The letters must be sent by the referees themselves. The candidates name must be mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research systems internal fellow

 

Distributed IT Systems Engineer

2017-09-20 13:11:42| Space-careers.com Jobs RSS

Do you want to help us to evolve and maintain our distributed IT infrastructure and services? These systems support data intensive applications that help us support our users to predict the weather and monitor climate change. EUMETSAT is the European satellite agency for monitoring weather and climate. Bringing together the resources of 30 Member States, we develop and operate a range of satellite systems surveying the atmosphere, ocean and climate that deliver data 24 hours a day. Our data is vital to weather forecasts that protect lives and property, and to monitoring the changing climate. EUMETSAT is now developing the next generation of satellite systems, shaping its longterm future. Within our Computer and Storage Management Competence Area CSM CA of the Generic Systems and Infrastructure Division GSI, we need a Distributed IT Systems Engineer to join our team. EUMETSAT is committed to developing its data reprocessing facilities and this is a new and challenging role. We use scientific techniques, big data and state of the art technology to develop our climaterelated products for our users. You will work closely with our teams of internal and external scientists to understand their needs and to develop outstanding data resources. You will be responsible for the full hardware and software lifecycle of maintenance, design and development of our distributed data processing systems, and have the capability to represent your team in meetings with users and suppliers, as appropriate. Along with a university degree or equivalent in Computer Science or Engineering, you will be able to use cutting edge big data technologies such as PBS, Kubernetes, Apache Kafka and Slurm. You should have expert knowledge of GNU Linux Systems and Docker containers with experience of using virtualisation technologies. You will have strong data management skills and be able to advise on crossteam initiatives and assess frontier technologies. With experience of agile methodologies, you will be familiar with retrospectives and continuous improvement processes. You are organised, with an ability to work in a fast paced environment, making pragmatic decisions which will improve our products and services. With excellent communication skills, you need to be a team player with the ability to synthesise and describe complex concepts. We provide an outstanding working environment in cosmopolitan Darmstadt, the City of Science. We offer attractive employment conditions, with a competitive salary, comprehensive health and social welfare provision and extensive relocation assistance, if applicable. All applicants must be a EUMETSAT Member State national with a good working knowledge of the English language, both spoken and written. You also require some knowledge of French. To learn more and apply online, please visit httpsonlineapplication.eumetsat.int reference VN17 51. The closing date is 12th October 2017. Interviews are provisionally booked for the week commencing 13th November 2017. EUMETSAT is committed to providing an equal opportunities work environment for men and women and is seeking to recruit nationals from its Member States. Please see our website for further details.

Tags: systems distributed engineer distributed systems

 

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