DS2020-005 (Mechanical Dept.)
Mechanical Engineer I – UAS Structural
Dynamics

Job Brief: A passionate and self-driven engineer who can apply his/her design skills, analysis skills
and creativity to support research and development of UAS. The candidate should be able to design
and verify static and functional parts. Having the designed parts to be used on a drone where weight
is critical, the designer should be able to pack the desired functionality with minimum weight and
maximum strength. The candidate will be leading concept phase, design activities, review and report
design’s progress. Creating a consistent design language/theme for all aspects of a product. Should
have background in structure designs for electro-mechanical aircraft systems and will drive the
ideation, analysis, design and development of structural systems and assemblies that must
withstand application environments. It requires a subject matter expert in developing analytical
models and running analysis design trades for all structural dynamic conditions, to be seen by the
system over its lifetime. Expecting the candidate to be proactive, innovative and hardworking. Must
be a team player with good communication skill. Should be able to interact with interdisciplinary
departments to derive specification and provide expert opinion.
Responsibilities:
At TUNGA you will be ideating mechanisms and structures for UAS subsystems like planform, control
surfaces, empennage, CG balanced Gimbal cage, slip ring holder, Vibration dampener, Fuselage,
Weather proofing, Electronics bay, Payload Bay, motor/engine mount, battery enclosure, battery
slide and latch mechanism, Quick release/detach mechanisms, Landing gear, control panels, folding
mechanisms with quick attach and detach mechanisms, Storage organisers etc. Followed by detailed
functional analysis of the mechanisms, nonlinear FEA analysis of the structures (built out of
composite materials, plastic or aluminium) and structural dynamic analysis (To avoid structural
resonance). The candidate should also be able to handle coupled analysis using any multi-physics
software and should be able to predict MTBF and improve design to beat the expected MTBF.
The candidate will feed the designs to CAD team and will act as a bridge between with the CAD
design and manufacturing/production team, helping them achieve design goals. The candidate will
also assist in material selection and verify drafting of mechanical parts, components & assemblies,
review of engineering drawings and documents that conform to company and industry drawing
standards. Specification of materials, finishes, and workmanship callouts in accordance with industry
specifications.

 Material topology optimisation to reduce weight, material selection based on static and
dynamic loading conditions.
 Demonstrated competence in designing composite aerospace structures & related
composite manufacturing processes so as to efficiently model accurate composite FE models.
 Develop the tools and analysis approaches to drive detailed trades on system structural
design
 Perform multiple analysis iterations to support various layout and configuration trades to
optimize for overall system design
 Identify and incorporate applicable system level parameters in the requirements definition
and analysis inputs. Identify applicable margins and boundary conditions in detail.
 Know the extent of the effects of different boundary conditions, and figure out an efficient
trade between computational resources and simulation accuracy.
 Interface with multiple other engineering disciplines throughout development iterations,
design, manufacturing, test.
 Understanding of stiffness/strength analysis, material selection trades, composite materials
analysis, stability analysis
 Generate stress and fatigue analysis on composite and metal aircraft structures using
classical hand analysis and Finite Element Modelling.
 Advise, guide and provide consultation on UAS structural analysis methods, design and
material choices.
 Provide recommendations for addressing risks associated with their structural analysis
methods and assumptions for their hardware. Understand UAS requirement verification
methods (analysis, test, inspection, demonstration) and which methods are appropriate for
each requirement.
 Knowledge of ASTM test methodology required for testing of composite, metal and plastic
models/ components would be appreciated. Many of these would be the inputs for
subsequent simulations such as fatigue. Others would be required for validation.
 Be capable of technical review of structural analyses and provide feedback. (Examples of
knowledge required include: Elasticity, Beam Theory, Column Buckling, Fastener and Lug
Analysis, Theory of Finite Elements, Plasticity, Crippling, Creep, Vibration and Resonance)
 Experience with non-linear – both implicit and explicit, fracture & fatigue, and buckling
analysis;
 Experience with composite materials analysis that includes: static, vibration, modal, shock,
harmonic and response spectrum analyses;
 Understanding of stiffness/strength analysis, material selection trades, composite materials
analysis.
 Performing structural/ dynamic loads analyses, and multi-body dynamic simulations for
subsystem and full assembly level trades, leading to UAS structural design selection.
 Developing structural analysis methods and best practices, mentor junior staff. Developing
the tools and analysis approaches to drive detailed trades on system structural design
 Good understanding of industry design and documentation standards (GD&T, ASME, Change
Control, etc.). Exposure to DFM and DFA methodologies.
 Comfortable working in a fast-paced, dynamic and highly-interactive start-up environment
 Proactively identify roadblocks to technical progress and take steps to mitigate/avoid
 Hands-on design/build UAV experience a plus, especially lightweight RC aircraft or other
miniature robotics systems is a plus
Competencies:
 Comfortable working in a fast-paced, dynamic and highly-interactive start-up environment
 Strong problem-solving, analytical skills, organisational and interpersonal skills
 Ability to multitask and prioritize
 Innately possesses accountability, fearless risk-taking, and measurable achievement
 Persuasive oral/written communication abilities
 Open to comments and advice – team player
 Flexible and adaptable (willing to work on other technical problems as needed)
Skills required:
Educational qualification: BE/BTECH ME/MTECH (Not Mandatory) in Mechanical Engineering/
Aerospace engineering
Experience: 2 - 3yrs in relevant field. Preference will be given for experience in the area of quick
attach/detach mechanism design and previous technical leadership in complex structures from
initial concept trades to build, test and qualification, and successful production deployment at
volume)
Software: SOLIDWORKS, Proficiency with Abaqus or Ansys with basic programming skill in either of
Python/C/C++