PhD Position: Advancing Kinematic Couplings for Precision Alignment Applications

The challenge

This PhD research focuses on the advanced design and analysis of kinematic couplings—a key technology for achieving passive, high-precision, and deterministic alignment between precision components. Unlike active alignment methods that rely on actuators and sensors, kinematic couplings enable self-alignment purely through geometry and contact mechanics, offering a fast, robust, and repeatable solution for high-tech applications.

Although the concept of kinematic couplings has existed for decades, the underlying physical phenomena remain poorly understood. In particular, the effects of friction, compliance, and contamination on alignment repeatability introduce uncertainties that limit their predictability and broader application.

You will investigate the underlying mechanical principles—including contact stiffness, constraint geometry, and material interactions, in particular friction—to develop novel coupling designs optimized for increased repeatability, thermal stability, and load-bearing capacity. These designs are critical in fields such as:

• Optical component alignment
• High-precision metrology instruments
• Wafer bonding in semiconductor manufacturing
• Engine docking assemblies
• Medical diagnostic and imaging systems

A key aspect of this research is addressing fundamental engineering challenges that currently limit the adoption of kinematic couplings, including:

• Initial alignment sensitivity during assembly or docking
• Thermal fluctuations and their impact on positional stability
• Loadability and robustness under dynamic or off-axis forces

You will combine analytical modeling, finite element simulations, and experimental validation to explore new coupling topologies and materials. The goal is to push the boundaries of passive alignment technologies and enable their integration into next-generation precision systems.

As a member of the Precision Engineering Laboratory, you will become part of a collaborative team of PhD researchers working in a dynamic and supportive environment. You will have the opportunity to present your research at leading international scientific conferences, helping you grow your academic profile and expand your professional network. This project is closely connected to and funded by the Dutch precision engineering community, offering a unique chance to contribute directly to innovations in high-tech industry.

At the Precision Engineering Laboratory, we develop model-based methods for designing and controlling ultra-precise systems. Building on the Dutch design principles legacy of van den Hoek, Koster, and Soemers, we specialize in flexure-based design for frictionless, repeatable motion. Interdisciplinary collaborations—with control, materials, and tribology experts—enable the creation of high-quality technology demonstrators. Strong ties to Dutch industry ensure our research is both scientifically rigorous and industrially relevant.

Our well-equipped lab is a hands-on environment where scientific rigor meets engineering creativity. We don’t just build systems that work—we strive to understand why they work. With high-precision tools and a strong focus on physical insight, the lab serves as a playground for researchers driven by curiosity and a passion for precision.